/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 17:17:20,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 17:17:20,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 17:17:20,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 17:17:20,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 17:17:20,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 17:17:20,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 17:17:20,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 17:17:20,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 17:17:20,871 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 17:17:20,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 17:17:20,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 17:17:20,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 17:17:20,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 17:17:20,876 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 17:17:20,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 17:17:20,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 17:17:20,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 17:17:20,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 17:17:20,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 17:17:20,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 17:17:20,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 17:17:20,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 17:17:20,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 17:17:20,879 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 17:17:20,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 17:17:20,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 17:17:20,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 17:17:20,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 17:17:20,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 17:17:20,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 17:17:20,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:17:20,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 17:17:20,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 17:17:20,883 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 17:17:20,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 17:17:20,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 17:17:20,883 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 17:17:21,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 17:17:21,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 17:17:21,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 17:17:21,126 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 17:17:21,126 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 17:17:21,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i [2023-12-18 17:17:22,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 17:17:22,328 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 17:17:22,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i [2023-12-18 17:17:22,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b7deab02/f271b501f716436dab5b2579c959b092/FLAG91fba7ea3 [2023-12-18 17:17:22,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b7deab02/f271b501f716436dab5b2579c959b092 [2023-12-18 17:17:22,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 17:17:22,344 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 17:17:22,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 17:17:22,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 17:17:22,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 17:17:22,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78618f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22, skipping insertion in model container [2023-12-18 17:17:22,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 17:17:22,482 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i[821,834] [2023-12-18 17:17:22,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:17:22,498 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 17:17:22,506 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i[821,834] [2023-12-18 17:17:22,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:17:22,520 INFO L206 MainTranslator]: Completed translation [2023-12-18 17:17:22,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22 WrapperNode [2023-12-18 17:17:22,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 17:17:22,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 17:17:22,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 17:17:22,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 17:17:22,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,550 INFO L138 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2023-12-18 17:17:22,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 17:17:22,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 17:17:22,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 17:17:22,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 17:17:22,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,567 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2023-12-18 17:17:22,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 17:17:22,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 17:17:22,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 17:17:22,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 17:17:22,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (1/1) ... [2023-12-18 17:17:22,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:17:22,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:22,781 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) [2023-12-18 17:17:22,786 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 [2023-12-18 17:17:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 17:17:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 17:17:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-18 17:17:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-18 17:17:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-18 17:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-18 17:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 17:17:22,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 17:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-18 17:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-18 17:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-18 17:17:22,874 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 17:17:22,875 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 17:17:22,961 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 17:17:22,982 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 17:17:22,982 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-18 17:17:22,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:17:22 BoogieIcfgContainer [2023-12-18 17:17:22,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 17:17:22,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 17:17:22,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 17:17:22,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 17:17:22,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:17:22" (1/3) ... [2023-12-18 17:17:22,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67c3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:17:22, skipping insertion in model container [2023-12-18 17:17:22,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:17:22" (2/3) ... [2023-12-18 17:17:22,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67c3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:17:22, skipping insertion in model container [2023-12-18 17:17:22,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:17:22" (3/3) ... [2023-12-18 17:17:22,988 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_minInArray_ground-1.i [2023-12-18 17:17:22,999 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 17:17:23,000 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 17:17:23,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 17:17:23,034 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;@4241d4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 17:17:23,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 17:17:23,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-18 17:17:23,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:23,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:23,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:23,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1193255132, now seen corresponding path program 1 times [2023-12-18 17:17:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453248921] [2023-12-18 17:17:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:23,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:17:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:23,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453248921] [2023-12-18 17:17:23,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453248921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 17:17:23,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 17:17:23,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 17:17:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625977882] [2023-12-18 17:17:23,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 17:17:23,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 17:17:23,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:23,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 17:17:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:17:23,273 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:23,316 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2023-12-18 17:17:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 17:17:23,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-18 17:17:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:23,323 INFO L225 Difference]: With dead ends: 27 [2023-12-18 17:17:23,323 INFO L226 Difference]: Without dead ends: 13 [2023-12-18 17:17:23,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:17:23,327 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:23,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-18 17:17:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-18 17:17:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-12-18 17:17:23,349 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2023-12-18 17:17:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:23,349 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-12-18 17:17:23,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-18 17:17:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-18 17:17:23,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:23,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:23,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 17:17:23,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:23,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:23,351 INFO L85 PathProgramCache]: Analyzing trace with hash -179432299, now seen corresponding path program 1 times [2023-12-18 17:17:23,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:23,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614078315] [2023-12-18 17:17:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:23,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:17:23,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:23,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614078315] [2023-12-18 17:17:23,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614078315] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:23,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668202291] [2023-12-18 17:17:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:23,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:23,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:23,451 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) [2023-12-18 17:17:23,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 17:17:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:23,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-18 17:17:23,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:23,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 17:17:23,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668202291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 17:17:23,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-18 17:17:23,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-18 17:17:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370926017] [2023-12-18 17:17:23,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 17:17:23,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 17:17:23,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:23,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 17:17:23,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-18 17:17:23,529 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:23,563 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2023-12-18 17:17:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 17:17:23,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-18 17:17:23,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:23,564 INFO L225 Difference]: With dead ends: 22 [2023-12-18 17:17:23,564 INFO L226 Difference]: Without dead ends: 16 [2023-12-18 17:17:23,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-18 17:17:23,565 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:23,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-18 17:17:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2023-12-18 17:17:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2023-12-18 17:17:23,568 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 9 [2023-12-18 17:17:23,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:23,568 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-12-18 17:17:23,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-12-18 17:17:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-18 17:17:23,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:23,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:23,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 17:17:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:23,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:23,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2081164720, now seen corresponding path program 1 times [2023-12-18 17:17:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215137709] [2023-12-18 17:17:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:23,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:23,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215137709] [2023-12-18 17:17:23,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215137709] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:23,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587836593] [2023-12-18 17:17:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:23,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:23,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:23,861 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) [2023-12-18 17:17:23,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 17:17:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:23,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 17:17:23,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:23,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:23,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587836593] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:23,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:23,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-18 17:17:23,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601930760] [2023-12-18 17:17:23,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:23,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 17:17:23,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 17:17:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:17:23,943 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:23,963 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2023-12-18 17:17:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 17:17:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-18 17:17:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:23,964 INFO L225 Difference]: With dead ends: 28 [2023-12-18 17:17:23,965 INFO L226 Difference]: Without dead ends: 17 [2023-12-18 17:17:23,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:17:23,969 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:23,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:23,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-18 17:17:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-18 17:17:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-12-18 17:17:23,974 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12 [2023-12-18 17:17:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:23,975 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-12-18 17:17:23,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:23,975 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-12-18 17:17:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-18 17:17:23,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:23,975 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:23,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-18 17:17:24,180 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,SelfDestructingSolverStorable2 [2023-12-18 17:17:24,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:24,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1331881940, now seen corresponding path program 2 times [2023-12-18 17:17:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495814442] [2023-12-18 17:17:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:24,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 17:17:24,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495814442] [2023-12-18 17:17:24,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495814442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:24,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208508430] [2023-12-18 17:17:24,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 17:17:24,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:24,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:24,286 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) [2023-12-18 17:17:24,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 17:17:24,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 17:17:24,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:24,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 17:17:24,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:24,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 17:17:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208508430] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:24,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:24,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2023-12-18 17:17:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486837707] [2023-12-18 17:17:24,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:24,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-18 17:17:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-18 17:17:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-18 17:17:24,486 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:24,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:24,512 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2023-12-18 17:17:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 17:17:24,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-18 17:17:24,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:24,513 INFO L225 Difference]: With dead ends: 39 [2023-12-18 17:17:24,513 INFO L226 Difference]: Without dead ends: 28 [2023-12-18 17:17:24,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-18 17:17:24,514 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-18 17:17:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-12-18 17:17:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-12-18 17:17:24,517 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 15 [2023-12-18 17:17:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:24,517 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-12-18 17:17:24,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-12-18 17:17:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-18 17:17:24,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:24,518 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:24,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:24,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:24,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:24,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1104016071, now seen corresponding path program 3 times [2023-12-18 17:17:24,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:24,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953575623] [2023-12-18 17:17:24,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:24,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-18 17:17:24,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953575623] [2023-12-18 17:17:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953575623] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856083006] [2023-12-18 17:17:24,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 17:17:24,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:24,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:24,990 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) [2023-12-18 17:17:25,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 17:17:25,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-18 17:17:25,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:25,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-18 17:17:25,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-18 17:17:25,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-18 17:17:25,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856083006] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:25,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:25,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 19 [2023-12-18 17:17:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55119861] [2023-12-18 17:17:25,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:25,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-18 17:17:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-18 17:17:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-12-18 17:17:25,141 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:25,193 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2023-12-18 17:17:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-18 17:17:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-12-18 17:17:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:25,195 INFO L225 Difference]: With dead ends: 53 [2023-12-18 17:17:25,195 INFO L226 Difference]: Without dead ends: 39 [2023-12-18 17:17:25,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-12-18 17:17:25,196 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:25,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 41 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-18 17:17:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-18 17:17:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2023-12-18 17:17:25,208 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 24 [2023-12-18 17:17:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:25,209 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2023-12-18 17:17:25,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,210 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-12-18 17:17:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-18 17:17:25,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:25,211 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:25,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-18 17:17:25,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:25,417 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:25,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1180593803, now seen corresponding path program 4 times [2023-12-18 17:17:25,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:25,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044700208] [2023-12-18 17:17:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-18 17:17:25,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:25,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044700208] [2023-12-18 17:17:25,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044700208] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:25,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604250560] [2023-12-18 17:17:25,593 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 17:17:25,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:25,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:25,594 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) [2023-12-18 17:17:25,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-18 17:17:25,661 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 17:17:25,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:25,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 17:17:25,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:25,737 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-18 17:17:25,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-18 17:17:25,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604250560] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:25,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:25,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 28 [2023-12-18 17:17:25,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477029865] [2023-12-18 17:17:25,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:25,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-18 17:17:25,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-18 17:17:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2023-12-18 17:17:25,843 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:25,909 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2023-12-18 17:17:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-18 17:17:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-12-18 17:17:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:25,910 INFO L225 Difference]: With dead ends: 90 [2023-12-18 17:17:25,910 INFO L226 Difference]: Without dead ends: 64 [2023-12-18 17:17:25,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2023-12-18 17:17:25,911 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 31 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 80 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:17:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-18 17:17:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-18 17:17:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 63 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2023-12-18 17:17:25,917 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 37 [2023-12-18 17:17:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:25,917 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2023-12-18 17:17:25,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-12-18 17:17:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-18 17:17:25,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:25,918 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:25,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:26,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:26,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -953333895, now seen corresponding path program 5 times [2023-12-18 17:17:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876445523] [2023-12-18 17:17:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-12-18 17:17:26,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:26,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876445523] [2023-12-18 17:17:26,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876445523] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:26,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026827583] [2023-12-18 17:17:26,353 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 17:17:26,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:26,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:26,354 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) [2023-12-18 17:17:26,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-18 17:17:26,498 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2023-12-18 17:17:26,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:26,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-18 17:17:26,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-18 17:17:26,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-18 17:17:27,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026827583] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:27,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:27,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 17] total 45 [2023-12-18 17:17:27,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362137763] [2023-12-18 17:17:27,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:27,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-18 17:17:27,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:27,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-18 17:17:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2023-12-18 17:17:27,116 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 45 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:27,239 INFO L93 Difference]: Finished difference Result 163 states and 227 transitions. [2023-12-18 17:17:27,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-18 17:17:27,239 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 45 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-18 17:17:27,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:27,240 INFO L225 Difference]: With dead ends: 163 [2023-12-18 17:17:27,240 INFO L226 Difference]: Without dead ends: 113 [2023-12-18 17:17:27,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2023-12-18 17:17:27,241 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 81 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:27,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 82 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:17:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-18 17:17:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-18 17:17:27,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 112 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 145 transitions. [2023-12-18 17:17:27,247 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 145 transitions. Word has length 62 [2023-12-18 17:17:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:27,247 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 145 transitions. [2023-12-18 17:17:27,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 45 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 145 transitions. [2023-12-18 17:17:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-18 17:17:27,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:27,249 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:27,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:27,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:27,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:27,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:27,461 INFO L85 PathProgramCache]: Analyzing trace with hash -526255243, now seen corresponding path program 6 times [2023-12-18 17:17:27,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:27,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130330806] [2023-12-18 17:17:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:27,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:27,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:27,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130330806] [2023-12-18 17:17:27,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130330806] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:27,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815862147] [2023-12-18 17:17:27,736 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-18 17:17:27,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:27,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:27,737 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) [2023-12-18 17:17:27,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-18 17:17:28,022 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2023-12-18 17:17:28,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:28,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-18 17:17:28,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:28,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:28,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815862147] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:28,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:28,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2023-12-18 17:17:28,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614889785] [2023-12-18 17:17:28,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:28,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-18 17:17:28,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:28,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-18 17:17:28,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2023-12-18 17:17:28,314 INFO L87 Difference]: Start difference. First operand 113 states and 145 transitions. Second operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:28,344 INFO L93 Difference]: Finished difference Result 226 states and 304 transitions. [2023-12-18 17:17:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-18 17:17:28,345 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-18 17:17:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:28,346 INFO L225 Difference]: With dead ends: 226 [2023-12-18 17:17:28,346 INFO L226 Difference]: Without dead ends: 128 [2023-12-18 17:17:28,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2023-12-18 17:17:28,347 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:28,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:28,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-18 17:17:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-18 17:17:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.2598425196850394) internal successors, (160), 127 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2023-12-18 17:17:28,368 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 111 [2023-12-18 17:17:28,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:28,368 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2023-12-18 17:17:28,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2023-12-18 17:17:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-18 17:17:28,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:28,369 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 28, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:28,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:28,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:28,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:28,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1398571911, now seen corresponding path program 7 times [2023-12-18 17:17:28,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61029700] [2023-12-18 17:17:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:28,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:29,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61029700] [2023-12-18 17:17:29,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61029700] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532417794] [2023-12-18 17:17:29,409 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-18 17:17:29,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:29,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:29,411 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) [2023-12-18 17:17:29,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-18 17:17:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:29,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-18 17:17:29,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:29,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:30,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:30,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532417794] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:30,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:30,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 60 [2023-12-18 17:17:30,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109808582] [2023-12-18 17:17:30,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:30,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-12-18 17:17:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:30,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-12-18 17:17:30,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2023-12-18 17:17:30,560 INFO L87 Difference]: Start difference. First operand 128 states and 160 transitions. Second operand has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:30,613 INFO L93 Difference]: Finished difference Result 256 states and 349 transitions. [2023-12-18 17:17:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-18 17:17:30,614 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2023-12-18 17:17:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:30,614 INFO L225 Difference]: With dead ends: 256 [2023-12-18 17:17:30,614 INFO L226 Difference]: Without dead ends: 158 [2023-12-18 17:17:30,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2023-12-18 17:17:30,616 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:30,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:17:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-18 17:17:30,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-12-18 17:17:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.2101910828025477) internal successors, (190), 157 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2023-12-18 17:17:30,623 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 126 [2023-12-18 17:17:30,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:30,623 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2023-12-18 17:17:30,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:30,623 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2023-12-18 17:17:30,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-18 17:17:30,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:30,625 INFO L195 NwaCegarLoop]: trace histogram [58, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:30,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:30,831 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,SelfDestructingSolverStorable8 [2023-12-18 17:17:30,831 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:30,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2053387513, now seen corresponding path program 8 times [2023-12-18 17:17:30,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:30,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763007513] [2023-12-18 17:17:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:30,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:33,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763007513] [2023-12-18 17:17:33,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763007513] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288013913] [2023-12-18 17:17:33,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 17:17:33,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:33,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:33,081 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) [2023-12-18 17:17:33,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-18 17:17:33,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 17:17:33,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:17:33,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-18 17:17:33,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:17:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:33,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:17:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:36,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288013913] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:17:36,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:17:36,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60, 60] total 120 [2023-12-18 17:17:36,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27475110] [2023-12-18 17:17:36,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:17:36,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-12-18 17:17:36,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:17:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-12-18 17:17:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2023-12-18 17:17:36,619 INFO L87 Difference]: Start difference. First operand 158 states and 190 transitions. Second operand has 121 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 120 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:17:36,758 INFO L93 Difference]: Finished difference Result 316 states and 439 transitions. [2023-12-18 17:17:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2023-12-18 17:17:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 120 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2023-12-18 17:17:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:17:36,759 INFO L225 Difference]: With dead ends: 316 [2023-12-18 17:17:36,759 INFO L226 Difference]: Without dead ends: 218 [2023-12-18 17:17:36,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2023-12-18 17:17:36,763 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:17:36,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:17:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-18 17:17:36,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2023-12-18 17:17:36,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.152073732718894) internal successors, (250), 217 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 250 transitions. [2023-12-18 17:17:36,769 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 250 transitions. Word has length 156 [2023-12-18 17:17:36,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:17:36,769 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 250 transitions. [2023-12-18 17:17:36,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 120 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:17:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 250 transitions. [2023-12-18 17:17:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-18 17:17:36,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:17:36,792 INFO L195 NwaCegarLoop]: trace histogram [118, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:17:36,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-18 17:17:36,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-18 17:17:36,999 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:17:36,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:17:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -261880327, now seen corresponding path program 9 times [2023-12-18 17:17:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:17:37,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49845018] [2023-12-18 17:17:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:17:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:17:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:17:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 8356 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2023-12-18 17:17:43,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:17:43,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49845018] [2023-12-18 17:17:43,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49845018] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:17:43,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609838908] [2023-12-18 17:17:43,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 17:17:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:17:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:17:43,967 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) [2023-12-18 17:17:43,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-18 17:25:03,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2023-12-18 17:25:03,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:25:03,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-18 17:25:03,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:25:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8356 backedges. 118 proven. 1335 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2023-12-18 17:25:05,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:25:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8356 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 7021 trivial. 0 not checked. [2023-12-18 17:25:07,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609838908] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:25:07,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:25:07,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 34, 33] total 184 [2023-12-18 17:25:07,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307560996] [2023-12-18 17:25:07,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:25:07,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 184 states [2023-12-18 17:25:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:25:07,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2023-12-18 17:25:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9396, Invalid=24276, Unknown=0, NotChecked=0, Total=33672 [2023-12-18 17:25:07,138 INFO L87 Difference]: Start difference. First operand 218 states and 250 transitions. Second operand has 184 states, 184 states have (on average 1.7282608695652173) internal successors, (318), 184 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:25:07,544 INFO L93 Difference]: Finished difference Result 413 states and 541 transitions. [2023-12-18 17:25:07,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2023-12-18 17:25:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 184 states, 184 states have (on average 1.7282608695652173) internal successors, (318), 184 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2023-12-18 17:25:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:25:07,551 INFO L225 Difference]: With dead ends: 413 [2023-12-18 17:25:07,551 INFO L226 Difference]: Without dead ends: 315 [2023-12-18 17:25:07,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7378 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=9396, Invalid=24276, Unknown=0, NotChecked=0, Total=33672 [2023-12-18 17:25:07,554 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 229 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-18 17:25:07,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 129 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-18 17:25:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-18 17:25:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2023-12-18 17:25:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.2070063694267517) internal successors, (379), 314 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 379 transitions. [2023-12-18 17:25:07,562 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 379 transitions. Word has length 216 [2023-12-18 17:25:07,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:25:07,563 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 379 transitions. [2023-12-18 17:25:07,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 184 states, 184 states have (on average 1.7282608695652173) internal successors, (318), 184 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 379 transitions. [2023-12-18 17:25:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-18 17:25:07,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:25:07,566 INFO L195 NwaCegarLoop]: trace histogram [119, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:25:07,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-18 17:25:07,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-18 17:25:07,780 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:25:07,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:25:07,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1130739723, now seen corresponding path program 10 times [2023-12-18 17:25:07,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:25:07,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858534376] [2023-12-18 17:25:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:25:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:25:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:25:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12875 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 5735 trivial. 0 not checked. [2023-12-18 17:25:14,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:25:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858534376] [2023-12-18 17:25:14,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858534376] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:25:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633085530] [2023-12-18 17:25:14,836 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 17:25:14,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:25:14,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:25:14,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:25:14,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-18 17:25:15,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 17:25:15,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:25:15,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-18 17:25:15,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:25:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12875 backedges. 0 proven. 5735 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-18 17:25:18,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:25:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12875 backedges. 0 proven. 5735 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-18 17:25:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633085530] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:25:24,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:25:24,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 65, 65] total 248 [2023-12-18 17:25:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624690846] [2023-12-18 17:25:24,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:25:24,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 248 states [2023-12-18 17:25:24,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:25:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 248 interpolants. [2023-12-18 17:25:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15508, Invalid=45748, Unknown=0, NotChecked=0, Total=61256 [2023-12-18 17:25:24,118 INFO L87 Difference]: Start difference. First operand 315 states and 379 transitions. Second operand has 248 states, 248 states have (on average 2.0524193548387095) internal successors, (509), 248 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:25,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:25:25,657 INFO L93 Difference]: Finished difference Result 702 states and 958 transitions. [2023-12-18 17:25:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2023-12-18 17:25:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 248 states, 248 states have (on average 2.0524193548387095) internal successors, (509), 248 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2023-12-18 17:25:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:25:25,659 INFO L225 Difference]: With dead ends: 702 [2023-12-18 17:25:25,659 INFO L226 Difference]: Without dead ends: 508 [2023-12-18 17:25:25,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14994 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=15508, Invalid=45748, Unknown=0, NotChecked=0, Total=61256 [2023-12-18 17:25:25,662 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 542 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-18 17:25:25,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 198 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-18 17:25:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-18 17:25:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2023-12-18 17:25:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.2544378698224852) internal successors, (636), 507 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 636 transitions. [2023-12-18 17:25:25,671 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 636 transitions. Word has length 313 [2023-12-18 17:25:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:25:25,671 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 636 transitions. [2023-12-18 17:25:25,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 248 states, 248 states have (on average 2.0524193548387095) internal successors, (509), 248 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:25:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 636 transitions. [2023-12-18 17:25:25,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-18 17:25:25,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:25:25,675 INFO L195 NwaCegarLoop]: trace histogram [126, 126, 126, 120, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:25:25,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-18 17:25:25,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-18 17:25:25,882 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:25:25,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:25:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash 802446201, now seen corresponding path program 11 times [2023-12-18 17:25:25,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:25:25,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147924579] [2023-12-18 17:25:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:25:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:25:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:25:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 31011 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 23751 trivial. 0 not checked. [2023-12-18 17:25:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:25:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147924579] [2023-12-18 17:25:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147924579] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:25:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243686798] [2023-12-18 17:25:34,442 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 17:25:34,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:25:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:25:34,443 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:25:34,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Received shutdown request... [2023-12-18 17:32:00,492 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 17:32:00,520 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 [2023-12-18 17:32:01,535 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 [2023-12-18 17:32:01,692 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forcibly destroying the process [2023-12-18 17:32:01,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 17:32:01,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 17:32:01,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2023-12-18 17:32:01,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139731441] [2023-12-18 17:32:01,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 17:32:01,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2023-12-18 17:32:01,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 137 [2023-12-18 17:32:01,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:32:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2023-12-18 17:32:01,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2023-12-18 17:32:01,715 INFO L87 Difference]: Start difference. First operand 508 states and 636 transitions. Second operand has 123 states, 123 states have (on average 1.065040650406504) internal successors, (131), 122 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-18 17:32:01,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 17:32:01,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2023-12-18 17:32:01,724 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:32:01,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:32:01,726 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 17:32:01,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 17:32:01,733 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (508states) and FLOYD_HOARE automaton (currently 2 states, 123 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-18 17:32:01,743 INFO L445 BasicCegarLoop]: Path program histogram: [11, 1, 1] [2023-12-18 17:32:01,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 17:32:01,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:32:01 BoogieIcfgContainer [2023-12-18 17:32:01,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 17:32:01,748 INFO L158 Benchmark]: Toolchain (without parser) took 879403.72ms. Allocated memory was 257.9MB in the beginning and 933.2MB in the end (delta: 675.3MB). Free memory was 207.6MB in the beginning and 432.3MB in the end (delta: -224.7MB). Peak memory consumption was 451.4MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,748 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 17:32:01,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.42ms. Allocated memory is still 257.9MB. Free memory was 207.6MB in the beginning and 196.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.15ms. Allocated memory is still 257.9MB. Free memory was 196.7MB in the beginning and 195.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,749 INFO L158 Benchmark]: Boogie Preprocessor took 23.61ms. Allocated memory is still 257.9MB. Free memory was 195.0MB in the beginning and 193.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,749 INFO L158 Benchmark]: RCFGBuilder took 407.66ms. Allocated memory is still 257.9MB. Free memory was 193.2MB in the beginning and 181.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,749 INFO L158 Benchmark]: TraceAbstraction took 878763.71ms. Allocated memory was 257.9MB in the beginning and 933.2MB in the end (delta: 675.3MB). Free memory was 180.8MB in the beginning and 432.3MB in the end (delta: -251.5MB). Peak memory consumption was 425.2MB. Max. memory is 8.0GB. [2023-12-18 17:32:01,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 175.42ms. Allocated memory is still 257.9MB. Free memory was 207.6MB in the beginning and 196.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.15ms. Allocated memory is still 257.9MB. Free memory was 196.7MB in the beginning and 195.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.61ms. Allocated memory is still 257.9MB. Free memory was 195.0MB in the beginning and 193.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 407.66ms. Allocated memory is still 257.9MB. Free memory was 193.2MB in the beginning and 181.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 878763.71ms. Allocated memory was 257.9MB in the beginning and 933.2MB in the end (delta: 675.3MB). Free memory was 180.8MB in the beginning and 432.3MB in the end (delta: -251.5MB). Peak memory consumption was 425.2MB. 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: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (508states) and FLOYD_HOARE automaton (currently 2 states, 123 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.7s, OverallIterations: 13, TraceHistogramMax: 126, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 913 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 913 mSDsluCounter, 819 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 696 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1547 IncrementalHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 123 mSDtfsCounter, 1547 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2651 GetRequests, 1788 SyntacticMatches, 0 SemanticMatches, 863 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23357 ImplicationChecksByTransitivity, 31.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=508occurred in iteration=12, InterpolantAutomatonStates: 760, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 440.8s SatisfiabilityAnalysisTime, 44.1s InterpolantComputationTime, 2676 NumberOfCodeBlocks, 2564 NumberOfCodeBlocksAsserted, 88 NumberOfCheckSat, 3714 ConstructedInterpolants, 0 QuantifiedInterpolants, 6556 SizeOfPredicates, 1 NumberOfNonLiveVariables, 4858 ConjunctsInSsa, 263 ConjunctsInUnsatCore, 34 InterpolantComputations, 2 PerfectInterpolantSequences, 71915/115010 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