/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-66.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:01:11,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:01:11,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:01:11,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:01:11,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:01:11,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:01:11,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:01:11,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:01:11,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:01:11,353 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:01:11,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:01:11,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:01:11,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:01:11,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:01:11,356 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:01:11,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:01:11,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:01:11,356 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:01:11,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:01:11,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:01:11,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:01:11,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:01:11,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:01:11,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:01:11,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:01:11,359 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:01:11,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:01:11,360 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:01:11,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:01:11,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:01:11,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:01:11,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:01:11,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:01:11,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:01:11,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:01:11,363 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:01:11,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:01:11,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:01:11,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:01:11,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:01:11,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:01:11,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:01:11,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:01:11,636 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:01:11,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2023-12-16 04:01:12,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:01:13,106 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:01:13,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-66.i [2023-12-16 04:01:13,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5dea5200/39c66e3221744d4babc5b5590896cf28/FLAG993c9d9f6 [2023-12-16 04:01:13,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5dea5200/39c66e3221744d4babc5b5590896cf28 [2023-12-16 04:01:13,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:01:13,137 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:01:13,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:01:13,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:01:13,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:01:13,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378d07fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13, skipping insertion in model container [2023-12-16 04:01:13,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,191 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:01:13,306 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_operatoramount_amount250_file-66.i[916,929] [2023-12-16 04:01:13,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:01:13,481 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:01:13,492 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_operatoramount_amount250_file-66.i[916,929] [2023-12-16 04:01:13,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:01:13,585 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:01:13,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13 WrapperNode [2023-12-16 04:01:13,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:01:13,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:01:13,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:01:13,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:01:13,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,675 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 418 [2023-12-16 04:01:13,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:01:13,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:01:13,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:01:13,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:01:13,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,743 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 04:01:13,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:01:13,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:01:13,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:01:13,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:01:13,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (1/1) ... [2023-12-16 04:01:13,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:01:13,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:13,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 04:01:13,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 04:01:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:01:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:01:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:01:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:01:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:01:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:01:13,941 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:01:13,943 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:01:14,641 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:01:14,691 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:01:14,691 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:01:14,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:14 BoogieIcfgContainer [2023-12-16 04:01:14,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:01:14,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:01:14,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:01:14,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:01:14,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:01:13" (1/3) ... [2023-12-16 04:01:14,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acf192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:14, skipping insertion in model container [2023-12-16 04:01:14,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:01:13" (2/3) ... [2023-12-16 04:01:14,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acf192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:01:14, skipping insertion in model container [2023-12-16 04:01:14,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:01:14" (3/3) ... [2023-12-16 04:01:14,701 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-66.i [2023-12-16 04:01:14,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:01:14,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:01:14,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:01:14,774 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;@c387f4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:01:14,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:01:14,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 113 states have internal predecessors, (171), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 04:01:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:14,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:14,807 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:14,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:14,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:14,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1634121595, now seen corresponding path program 1 times [2023-12-16 04:01:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:14,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249009715] [2023-12-16 04:01:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:15,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:15,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133806320] [2023-12-16 04:01:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:15,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:15,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:15,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:15,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:01:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:15,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:01:15,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 04:01:15,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:15,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:15,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249009715] [2023-12-16 04:01:15,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:15,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133806320] [2023-12-16 04:01:15,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133806320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:15,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:15,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:01:15,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699395239] [2023-12-16 04:01:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:15,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:01:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:01:15,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:01:15,540 INFO L87 Difference]: Start difference. First operand has 158 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 113 states have internal predecessors, (171), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:20,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-16 04:01:20,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:20,291 INFO L93 Difference]: Finished difference Result 337 states and 590 transitions. [2023-12-16 04:01:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:01:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 291 [2023-12-16 04:01:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:20,303 INFO L225 Difference]: With dead ends: 337 [2023-12-16 04:01:20,303 INFO L226 Difference]: Without dead ends: 180 [2023-12-16 04:01:20,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:01:20,309 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 48 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:20,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 748 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 04:01:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-16 04:01:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 158. [2023-12-16 04:01:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 113 states have (on average 1.4867256637168142) internal successors, (168), 113 states have internal predecessors, (168), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 04:01:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 254 transitions. [2023-12-16 04:01:20,359 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 254 transitions. Word has length 291 [2023-12-16 04:01:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:20,361 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 254 transitions. [2023-12-16 04:01:20,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 254 transitions. [2023-12-16 04:01:20,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:20,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:20,367 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:20,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:01:20,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 04:01:20,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:20,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:20,579 INFO L85 PathProgramCache]: Analyzing trace with hash 824774969, now seen corresponding path program 1 times [2023-12-16 04:01:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346982869] [2023-12-16 04:01:20,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:20,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:20,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032976654] [2023-12-16 04:01:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:20,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:20,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:20,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:20,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:01:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:20,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:01:20,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 04:01:20,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:20,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:20,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346982869] [2023-12-16 04:01:20,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:20,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032976654] [2023-12-16 04:01:20,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032976654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:20,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:20,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:01:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981018256] [2023-12-16 04:01:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:20,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:01:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:01:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:01:20,911 INFO L87 Difference]: Start difference. First operand 158 states and 254 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:21,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:21,004 INFO L93 Difference]: Finished difference Result 335 states and 536 transitions. [2023-12-16 04:01:21,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:01:21,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 291 [2023-12-16 04:01:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:21,008 INFO L225 Difference]: With dead ends: 335 [2023-12-16 04:01:21,008 INFO L226 Difference]: Without dead ends: 178 [2023-12-16 04:01:21,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:01:21,010 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 39 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:21,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 745 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-16 04:01:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 160. [2023-12-16 04:01:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 115 states have (on average 1.4782608695652173) internal successors, (170), 115 states have internal predecessors, (170), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 04:01:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 256 transitions. [2023-12-16 04:01:21,026 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 256 transitions. Word has length 291 [2023-12-16 04:01:21,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:21,026 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 256 transitions. [2023-12-16 04:01:21,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 256 transitions. [2023-12-16 04:01:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:21,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:21,031 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:21,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:21,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 04:01:21,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:21,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:21,242 INFO L85 PathProgramCache]: Analyzing trace with hash 882033271, now seen corresponding path program 1 times [2023-12-16 04:01:21,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:21,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867178729] [2023-12-16 04:01:21,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:21,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:21,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731691966] [2023-12-16 04:01:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:21,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:21,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:21,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:01:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:21,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:01:21,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 04:01:21,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867178729] [2023-12-16 04:01:21,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:21,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731691966] [2023-12-16 04:01:21,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731691966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:21,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:21,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:01:21,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957817815] [2023-12-16 04:01:21,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:21,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:01:21,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:21,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:01:21,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:21,637 INFO L87 Difference]: Start difference. First operand 160 states and 256 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:21,752 INFO L93 Difference]: Finished difference Result 467 states and 748 transitions. [2023-12-16 04:01:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:01:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 291 [2023-12-16 04:01:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:21,759 INFO L225 Difference]: With dead ends: 467 [2023-12-16 04:01:21,759 INFO L226 Difference]: Without dead ends: 308 [2023-12-16 04:01:21,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:21,766 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 217 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:21,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 577 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:01:21,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-16 04:01:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 191. [2023-12-16 04:01:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 146 states have (on average 1.4931506849315068) internal successors, (218), 146 states have internal predecessors, (218), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 04:01:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 304 transitions. [2023-12-16 04:01:21,796 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 304 transitions. Word has length 291 [2023-12-16 04:01:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:21,797 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 304 transitions. [2023-12-16 04:01:21,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 304 transitions. [2023-12-16 04:01:21,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:21,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:21,801 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:21,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:22,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:22,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:22,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash 944072885, now seen corresponding path program 1 times [2023-12-16 04:01:22,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:22,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742168713] [2023-12-16 04:01:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:22,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974923083] [2023-12-16 04:01:22,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:22,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:22,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:22,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:01:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:22,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 04:01:22,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1428 proven. 93 refuted. 0 times theorem prover too weak. 2091 trivial. 0 not checked. [2023-12-16 04:01:22,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:01:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 33 proven. 93 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-16 04:01:23,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:23,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742168713] [2023-12-16 04:01:23,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:23,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974923083] [2023-12-16 04:01:23,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974923083] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:01:23,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:01:23,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-16 04:01:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282973744] [2023-12-16 04:01:23,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:01:23,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:01:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:23,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:01:23,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:01:23,279 INFO L87 Difference]: Start difference. First operand 191 states and 304 transitions. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) [2023-12-16 04:01:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:23,621 INFO L93 Difference]: Finished difference Result 387 states and 612 transitions. [2023-12-16 04:01:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:01:23,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) Word has length 291 [2023-12-16 04:01:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:23,625 INFO L225 Difference]: With dead ends: 387 [2023-12-16 04:01:23,625 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 04:01:23,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:01:23,627 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 642 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:23,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 482 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:01:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 04:01:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2023-12-16 04:01:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 149 states have (on average 1.4697986577181208) internal successors, (219), 149 states have internal predecessors, (219), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 04:01:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 305 transitions. [2023-12-16 04:01:23,644 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 305 transitions. Word has length 291 [2023-12-16 04:01:23,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:23,645 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 305 transitions. [2023-12-16 04:01:23,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 12 states have internal predecessors, (139), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) [2023-12-16 04:01:23,646 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 305 transitions. [2023-12-16 04:01:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:23,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:23,649 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:23,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:23,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:23,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:23,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1964691017, now seen corresponding path program 1 times [2023-12-16 04:01:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:23,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908199883] [2023-12-16 04:01:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:23,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:23,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:23,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250351895] [2023-12-16 04:01:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:23,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:23,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:01:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:24,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 04:01:24,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2377 proven. 51 refuted. 0 times theorem prover too weak. 1184 trivial. 0 not checked. [2023-12-16 04:01:24,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:01:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 75 proven. 51 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-16 04:01:25,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:25,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908199883] [2023-12-16 04:01:25,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:25,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250351895] [2023-12-16 04:01:25,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250351895] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:01:25,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:01:25,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-12-16 04:01:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358424103] [2023-12-16 04:01:25,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:01:25,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:01:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:01:25,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:01:25,084 INFO L87 Difference]: Start difference. First operand 195 states and 305 transitions. Second operand has 13 states, 13 states have (on average 11.23076923076923) internal successors, (146), 13 states have internal predecessors, (146), 5 states have call successors, (77), 3 states have call predecessors, (77), 5 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-12-16 04:01:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:25,672 INFO L93 Difference]: Finished difference Result 437 states and 674 transitions. [2023-12-16 04:01:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:01:25,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.23076923076923) internal successors, (146), 13 states have internal predecessors, (146), 5 states have call successors, (77), 3 states have call predecessors, (77), 5 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) Word has length 291 [2023-12-16 04:01:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:25,676 INFO L225 Difference]: With dead ends: 437 [2023-12-16 04:01:25,676 INFO L226 Difference]: Without dead ends: 243 [2023-12-16 04:01:25,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:01:25,680 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 488 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:25,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 625 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:01:25,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-16 04:01:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2023-12-16 04:01:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 164 states have (on average 1.3780487804878048) internal successors, (226), 165 states have internal predecessors, (226), 68 states have call successors, (68), 5 states have call predecessors, (68), 5 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-16 04:01:25,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 362 transitions. [2023-12-16 04:01:25,713 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 362 transitions. Word has length 291 [2023-12-16 04:01:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:25,713 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 362 transitions. [2023-12-16 04:01:25,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.23076923076923) internal successors, (146), 13 states have internal predecessors, (146), 5 states have call successors, (77), 3 states have call predecessors, (77), 5 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-12-16 04:01:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 362 transitions. [2023-12-16 04:01:25,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 04:01:25,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:25,718 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:25,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:25,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:25,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:25,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:25,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1671907191, now seen corresponding path program 1 times [2023-12-16 04:01:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:25,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59378854] [2023-12-16 04:01:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:25,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768836969] [2023-12-16 04:01:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:25,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:25,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:25,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:25,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:01:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:26,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 04:01:26,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 04:01:26,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:26,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59378854] [2023-12-16 04:01:26,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768836969] [2023-12-16 04:01:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768836969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:26,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:26,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:01:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355035055] [2023-12-16 04:01:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:26,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:01:26,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:01:26,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:01:26,935 INFO L87 Difference]: Start difference. First operand 238 states and 362 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:27,109 INFO L93 Difference]: Finished difference Result 623 states and 950 transitions. [2023-12-16 04:01:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:01:27,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 291 [2023-12-16 04:01:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:27,112 INFO L225 Difference]: With dead ends: 623 [2023-12-16 04:01:27,113 INFO L226 Difference]: Without dead ends: 428 [2023-12-16 04:01:27,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:01:27,115 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 201 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:27,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 725 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:01:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-12-16 04:01:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 279. [2023-12-16 04:01:27,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 185 states have (on average 1.335135135135135) internal successors, (247), 185 states have internal predecessors, (247), 86 states have call successors, (86), 7 states have call predecessors, (86), 7 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:01:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 419 transitions. [2023-12-16 04:01:27,151 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 419 transitions. Word has length 291 [2023-12-16 04:01:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:27,152 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 419 transitions. [2023-12-16 04:01:27,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:27,153 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 419 transitions. [2023-12-16 04:01:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-16 04:01:27,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:27,156 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:27,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:27,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:27,369 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:27,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash -14406362, now seen corresponding path program 1 times [2023-12-16 04:01:27,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:27,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273493748] [2023-12-16 04:01:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:27,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:27,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998210597] [2023-12-16 04:01:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:27,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:27,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:27,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:27,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:01:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:27,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:01:27,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 366 proven. 120 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-12-16 04:01:27,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:01:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-16 04:01:28,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273493748] [2023-12-16 04:01:28,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998210597] [2023-12-16 04:01:28,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998210597] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:01:28,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:01:28,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-16 04:01:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129874215] [2023-12-16 04:01:28,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:01:28,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:01:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:01:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:01:28,220 INFO L87 Difference]: Start difference. First operand 279 states and 419 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2023-12-16 04:01:28,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:28,480 INFO L93 Difference]: Finished difference Result 486 states and 724 transitions. [2023-12-16 04:01:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:01:28,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 292 [2023-12-16 04:01:28,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:28,484 INFO L225 Difference]: With dead ends: 486 [2023-12-16 04:01:28,485 INFO L226 Difference]: Without dead ends: 291 [2023-12-16 04:01:28,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:01:28,486 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 245 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:28,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 449 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:01:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-16 04:01:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2023-12-16 04:01:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 191 states have internal predecessors, (252), 86 states have call successors, (86), 9 states have call predecessors, (86), 9 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 04:01:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 424 transitions. [2023-12-16 04:01:28,516 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 424 transitions. Word has length 292 [2023-12-16 04:01:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:28,517 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 424 transitions. [2023-12-16 04:01:28,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 3 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2023-12-16 04:01:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 424 transitions. [2023-12-16 04:01:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-16 04:01:28,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:28,520 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:28,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:28,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:28,729 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:28,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1924755684, now seen corresponding path program 1 times [2023-12-16 04:01:28,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:28,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555412717] [2023-12-16 04:01:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:28,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:28,768 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:28,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68892892] [2023-12-16 04:01:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:28,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:28,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:28,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:28,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:01:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:29,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:01:29,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-16 04:01:29,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:01:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:29,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555412717] [2023-12-16 04:01:29,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68892892] [2023-12-16 04:01:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68892892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:01:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:01:29,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:01:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234623572] [2023-12-16 04:01:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:01:29,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:01:29,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:29,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:01:29,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:29,291 INFO L87 Difference]: Start difference. First operand 287 states and 424 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:29,357 INFO L93 Difference]: Finished difference Result 685 states and 1018 transitions. [2023-12-16 04:01:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:01:29,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 292 [2023-12-16 04:01:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:29,360 INFO L225 Difference]: With dead ends: 685 [2023-12-16 04:01:29,360 INFO L226 Difference]: Without dead ends: 486 [2023-12-16 04:01:29,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:01:29,362 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 100 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:29,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 452 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:01:29,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-16 04:01:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 484. [2023-12-16 04:01:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 340 states have (on average 1.3529411764705883) internal successors, (460), 340 states have internal predecessors, (460), 129 states have call successors, (129), 14 states have call predecessors, (129), 14 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2023-12-16 04:01:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 718 transitions. [2023-12-16 04:01:29,406 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 718 transitions. Word has length 292 [2023-12-16 04:01:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:29,407 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 718 transitions. [2023-12-16 04:01:29,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-16 04:01:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 718 transitions. [2023-12-16 04:01:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-16 04:01:29,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:29,409 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:29,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:29,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 04:01:29,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:29,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:29,619 INFO L85 PathProgramCache]: Analyzing trace with hash -4196325, now seen corresponding path program 1 times [2023-12-16 04:01:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760569667] [2023-12-16 04:01:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:29,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:29,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:29,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977198551] [2023-12-16 04:01:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:29,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:29,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:29,667 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:29,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:01:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:01:29,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 04:01:29,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:01:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 2110 proven. 138 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2023-12-16 04:01:30,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:01:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 108 proven. 141 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2023-12-16 04:01:31,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:01:31,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760569667] [2023-12-16 04:01:31,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:01:31,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977198551] [2023-12-16 04:01:31,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977198551] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:01:31,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:01:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-12-16 04:01:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650270523] [2023-12-16 04:01:31,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:01:31,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 04:01:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:01:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 04:01:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:01:31,183 INFO L87 Difference]: Start difference. First operand 484 states and 718 transitions. Second operand has 18 states, 18 states have (on average 7.5) internal successors, (135), 18 states have internal predecessors, (135), 6 states have call successors, (86), 4 states have call predecessors, (86), 8 states have return successors, (86), 6 states have call predecessors, (86), 6 states have call successors, (86) [2023-12-16 04:01:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:01:32,618 INFO L93 Difference]: Finished difference Result 1363 states and 2045 transitions. [2023-12-16 04:01:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 04:01:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.5) internal successors, (135), 18 states have internal predecessors, (135), 6 states have call successors, (86), 4 states have call predecessors, (86), 8 states have return successors, (86), 6 states have call predecessors, (86), 6 states have call successors, (86) Word has length 293 [2023-12-16 04:01:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:01:32,623 INFO L225 Difference]: With dead ends: 1363 [2023-12-16 04:01:32,624 INFO L226 Difference]: Without dead ends: 967 [2023-12-16 04:01:32,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=307, Invalid=749, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 04:01:32,626 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1337 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:01:32,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2334 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:01:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-16 04:01:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 500. [2023-12-16 04:01:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 352 states have (on average 1.3380681818181819) internal successors, (471), 352 states have internal predecessors, (471), 129 states have call successors, (129), 18 states have call predecessors, (129), 18 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2023-12-16 04:01:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 729 transitions. [2023-12-16 04:01:32,679 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 729 transitions. Word has length 293 [2023-12-16 04:01:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:01:32,679 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 729 transitions. [2023-12-16 04:01:32,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.5) internal successors, (135), 18 states have internal predecessors, (135), 6 states have call successors, (86), 4 states have call predecessors, (86), 8 states have return successors, (86), 6 states have call predecessors, (86), 6 states have call successors, (86) [2023-12-16 04:01:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 729 transitions. [2023-12-16 04:01:32,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-16 04:01:32,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:01:32,682 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:01:32,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:01:32,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:32,890 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:01:32,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:01:32,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1932469027, now seen corresponding path program 1 times [2023-12-16 04:01:32,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:01:32,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124213798] [2023-12-16 04:01:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:01:32,931 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:01:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586115754] [2023-12-16 04:01:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:01:32,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:01:32,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:01:32,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:01:32,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 04:02:22,358 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:02:22,363 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:02:23,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 04:02:23,568 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forcibly destroying the process [2023-12-16 04:02:23,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 04:02:23,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 137 [2023-12-16 04:02:23,576 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:02:23,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:02:23,576 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 294 with TraceHistMax 43,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-16 04:02:23,580 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:02:23,583 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:02:23,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:02:23 BoogieIcfgContainer [2023-12-16 04:02:23,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:02:23,585 INFO L158 Benchmark]: Toolchain (without parser) took 70447.78ms. Allocated memory was 319.8MB in the beginning and 470.8MB in the end (delta: 151.0MB). Free memory was 265.4MB in the beginning and 210.6MB in the end (delta: 54.8MB). Peak memory consumption was 206.3MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,585 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 213.9MB. Free memory was 164.0MB in the beginning and 163.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:02:23,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.10ms. Allocated memory is still 319.8MB. Free memory was 265.4MB in the beginning and 240.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.91ms. Allocated memory is still 319.8MB. Free memory was 240.7MB in the beginning and 231.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,586 INFO L158 Benchmark]: Boogie Preprocessor took 112.17ms. Allocated memory is still 319.8MB. Free memory was 231.8MB in the beginning and 215.6MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,586 INFO L158 Benchmark]: RCFGBuilder took 899.01ms. Allocated memory is still 319.8MB. Free memory was 215.6MB in the beginning and 275.1MB in the end (delta: -59.6MB). Peak memory consumption was 58.3MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,586 INFO L158 Benchmark]: TraceAbstraction took 68890.24ms. Allocated memory was 319.8MB in the beginning and 470.8MB in the end (delta: 151.0MB). Free memory was 274.1MB in the beginning and 210.6MB in the end (delta: 63.6MB). Peak memory consumption was 214.1MB. Max. memory is 8.0GB. [2023-12-16 04:02:23,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 213.9MB. Free memory was 164.0MB in the beginning and 163.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 446.10ms. Allocated memory is still 319.8MB. Free memory was 265.4MB in the beginning and 240.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 88.91ms. Allocated memory is still 319.8MB. Free memory was 240.7MB in the beginning and 231.8MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 112.17ms. Allocated memory is still 319.8MB. Free memory was 231.8MB in the beginning and 215.6MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * RCFGBuilder took 899.01ms. Allocated memory is still 319.8MB. Free memory was 215.6MB in the beginning and 275.1MB in the end (delta: -59.6MB). Peak memory consumption was 58.3MB. Max. memory is 8.0GB. * TraceAbstraction took 68890.24ms. Allocated memory was 319.8MB in the beginning and 470.8MB in the end (delta: 151.0MB). Free memory was 274.1MB in the beginning and 210.6MB in the end (delta: 63.6MB). Peak memory consumption was 214.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 294 with TraceHistMax 43,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.8s, OverallIterations: 10, TraceHistogramMax: 43, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3404 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3317 mSDsluCounter, 7137 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5042 mSDsCounter, 548 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2622 IncrementalHoareTripleChecker+Invalid, 3170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 548 mSolverCounterUnsat, 2095 mSDtfsCounter, 2622 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3817 GetRequests, 3729 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=9, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 786 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2623 NumberOfCodeBlocks, 2623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3777 ConstructedInterpolants, 0 QuantifiedInterpolants, 13889 SizeOfPredicates, 31 NumberOfNonLiveVariables, 6343 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 46149/46956 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