/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-examples/standard_copy1_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 05:51:28,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 05:51:28,980 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 05:51:28,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 05:51:28,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 05:51:29,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 05:51:29,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 05:51:29,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 05:51:29,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 05:51:29,007 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 05:51:29,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 05:51:29,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 05:51:29,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 05:51:29,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 05:51:29,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 05:51:29,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 05:51:29,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 05:51:29,011 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 05:51:29,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 05:51:29,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 05:51:29,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 05:51:29,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 05:51:29,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 05:51:29,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 05:51:29,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 05:51:29,013 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 05:51:29,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 05:51:29,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 05:51:29,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 05:51:29,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 05:51:29,181 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 05:51:29,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy1_ground-1.i [2023-12-20 05:51:30,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 05:51:30,331 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 05:51:30,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy1_ground-1.i [2023-12-20 05:51:30,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89fafd8b/28e04efc3f27462ea47641e236e0d927/FLAG5a7474eb0 [2023-12-20 05:51:30,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89fafd8b/28e04efc3f27462ea47641e236e0d927 [2023-12-20 05:51:30,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 05:51:30,351 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 05:51:30,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 05:51:30,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 05:51:30,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 05:51:30,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7063f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30, skipping insertion in model container [2023-12-20 05:51:30,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,369 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 05:51:30,459 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_copy1_ground-1.i[816,829] [2023-12-20 05:51:30,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 05:51:30,474 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 05:51:30,483 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_copy1_ground-1.i[816,829] [2023-12-20 05:51:30,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 05:51:30,497 INFO L206 MainTranslator]: Completed translation [2023-12-20 05:51:30,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30 WrapperNode [2023-12-20 05:51:30,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 05:51:30,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 05:51:30,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 05:51:30,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 05:51:30,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,522 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-12-20 05:51:30,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 05:51:30,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 05:51:30,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 05:51:30,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 05:51:30,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,547 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-12-20 05:51:30,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 05:51:30,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 05:51:30,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 05:51:30,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 05:51:30,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (1/1) ... [2023-12-20 05:51:30,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 05:51:30,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:30,585 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) [2023-12-20 05:51:30,624 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 [2023-12-20 05:51:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 05:51:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 05:51:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 05:51:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 05:51:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 05:51:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 05:51:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 05:51:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 05:51:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 05:51:30,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 05:51:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 05:51:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 05:51:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 05:51:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 05:51:30,683 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 05:51:30,685 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 05:51:30,775 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 05:51:30,798 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 05:51:30,798 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-20 05:51:30,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 05:51:30 BoogieIcfgContainer [2023-12-20 05:51:30,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 05:51:30,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 05:51:30,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 05:51:30,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 05:51:30,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 05:51:30" (1/3) ... [2023-12-20 05:51:30,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f514ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 05:51:30, skipping insertion in model container [2023-12-20 05:51:30,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:51:30" (2/3) ... [2023-12-20 05:51:30,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f514ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 05:51:30, skipping insertion in model container [2023-12-20 05:51:30,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 05:51:30" (3/3) ... [2023-12-20 05:51:30,804 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy1_ground-1.i [2023-12-20 05:51:30,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 05:51:30,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 05:51:30,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 05:51:30,849 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;@428642e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 05:51:30,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 05:51:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-12-20 05:51:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-20 05:51:30,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:30,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:30,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:30,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2137985797, now seen corresponding path program 1 times [2023-12-20 05:51:30,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:30,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47695974] [2023-12-20 05:51:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:30,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 05:51:31,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47695974] [2023-12-20 05:51:31,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47695974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 05:51:31,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 05:51:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 05:51:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757021472] [2023-12-20 05:51:31,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 05:51:31,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 05:51:31,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 05:51:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 05:51:31,083 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 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) [2023-12-20 05:51:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:31,120 INFO L93 Difference]: Finished difference Result 23 states and 35 transitions. [2023-12-20 05:51:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 05:51:31,123 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 [2023-12-20 05:51:31,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:31,127 INFO L225 Difference]: With dead ends: 23 [2023-12-20 05:51:31,128 INFO L226 Difference]: Without dead ends: 11 [2023-12-20 05:51:31,129 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 [2023-12-20 05:51:31,132 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-12-20 05:51:31,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-12-20 05:51:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-12-20 05:51:31,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2023-12-20 05:51:31,154 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2023-12-20 05:51:31,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:31,154 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-12-20 05:51:31,154 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) [2023-12-20 05:51:31,154 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-12-20 05:51:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-20 05:51:31,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:31,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:31,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 05:51:31,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:31,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:31,156 INFO L85 PathProgramCache]: Analyzing trace with hash -110725223, now seen corresponding path program 1 times [2023-12-20 05:51:31,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:31,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771109396] [2023-12-20 05:51:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 05:51:31,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:31,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771109396] [2023-12-20 05:51:31,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771109396] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732956131] [2023-12-20 05:51:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:31,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:31,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:31,218 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) [2023-12-20 05:51:31,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 05:51:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:31,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 05:51:31,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:31,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 05:51:31,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732956131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 05:51:31,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 05:51:31,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-20 05:51:31,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317357286] [2023-12-20 05:51:31,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 05:51:31,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 05:51:31,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:31,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 05:51:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 05:51:31,287 INFO L87 Difference]: Start difference. First operand 11 states and 13 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) [2023-12-20 05:51:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:31,320 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-12-20 05:51:31,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 05:51:31,321 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 [2023-12-20 05:51:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:31,321 INFO L225 Difference]: With dead ends: 18 [2023-12-20 05:51:31,321 INFO L226 Difference]: Without dead ends: 12 [2023-12-20 05:51:31,321 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 [2023-12-20 05:51:31,322 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 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 [2023-12-20 05:51:31,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:31,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-12-20 05:51:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-12-20 05:51:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2023-12-20 05:51:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-12-20 05:51:31,325 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2023-12-20 05:51:31,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:31,325 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-12-20 05:51:31,325 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) [2023-12-20 05:51:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-20 05:51:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-20 05:51:31,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:31,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:31,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 05:51:31,532 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 [2023-12-20 05:51:31,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:31,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:31,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1914134572, now seen corresponding path program 1 times [2023-12-20 05:51:31,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:31,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474971089] [2023-12-20 05:51:31,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:31,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474971089] [2023-12-20 05:51:31,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474971089] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:31,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783580178] [2023-12-20 05:51:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:31,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:31,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:31,626 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) [2023-12-20 05:51:31,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 05:51:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:31,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 05:51:31,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:31,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:31,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783580178] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:31,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-20 05:51:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599387921] [2023-12-20 05:51:31,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:31,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 05:51:31,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 05:51:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 05:51:31,717 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-12-20 05:51:31,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:31,742 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2023-12-20 05:51:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 05:51:31,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 10 [2023-12-20 05:51:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:31,743 INFO L225 Difference]: With dead ends: 24 [2023-12-20 05:51:31,743 INFO L226 Difference]: Without dead ends: 15 [2023-12-20 05:51:31,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 05:51:31,747 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:31,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-20 05:51:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-20 05:51:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 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) [2023-12-20 05:51:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-12-20 05:51:31,755 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2023-12-20 05:51:31,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:31,755 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-12-20 05:51:31,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-12-20 05:51:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-12-20 05:51:31,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-20 05:51:31,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:31,756 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:31,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:31,965 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 [2023-12-20 05:51:31,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:31,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1299566474, now seen corresponding path program 2 times [2023-12-20 05:51:31,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:31,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110456405] [2023-12-20 05:51:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:31,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 05:51:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:32,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110456405] [2023-12-20 05:51:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110456405] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:32,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703675038] [2023-12-20 05:51:32,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 05:51:32,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:32,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:32,070 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) [2023-12-20 05:51:32,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 05:51:32,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-20 05:51:32,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:32,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 05:51:32,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:32,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-20 05:51:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703675038] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:32,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:32,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2023-12-20 05:51:32,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506768374] [2023-12-20 05:51:32,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:32,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 05:51:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:32,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 05:51:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-20 05:51:32,232 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 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) [2023-12-20 05:51:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:32,254 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2023-12-20 05:51:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 05:51:32,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 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 13 [2023-12-20 05:51:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:32,255 INFO L225 Difference]: With dead ends: 31 [2023-12-20 05:51:32,255 INFO L226 Difference]: Without dead ends: 22 [2023-12-20 05:51:32,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-20 05:51:32,256 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:32,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-20 05:51:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-20 05:51:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-12-20 05:51:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-12-20 05:51:32,274 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2023-12-20 05:51:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:32,274 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-12-20 05:51:32,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 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) [2023-12-20 05:51:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-12-20 05:51:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-20 05:51:32,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:32,275 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:32,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 05:51:32,475 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 [2023-12-20 05:51:32,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:32,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1011629669, now seen corresponding path program 3 times [2023-12-20 05:51:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:32,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644661808] [2023-12-20 05:51:32,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:32,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-20 05:51:32,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644661808] [2023-12-20 05:51:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644661808] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501153906] [2023-12-20 05:51:32,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-20 05:51:32,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:32,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:32,721 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) [2023-12-20 05:51:32,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 05:51:32,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-20 05:51:32,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:32,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-20 05:51:32,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:32,832 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-20 05:51:32,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-20 05:51:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501153906] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:32,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 19 [2023-12-20 05:51:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914765432] [2023-12-20 05:51:32,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:32,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 05:51:32,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 05:51:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-12-20 05:51:32,877 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 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) [2023-12-20 05:51:32,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:32,912 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2023-12-20 05:51:32,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 05:51:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 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) Word has length 20 [2023-12-20 05:51:32,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:32,913 INFO L225 Difference]: With dead ends: 37 [2023-12-20 05:51:32,913 INFO L226 Difference]: Without dead ends: 27 [2023-12-20 05:51:32,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-12-20 05:51:32,914 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:32,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-20 05:51:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-12-20 05:51:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 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) [2023-12-20 05:51:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-12-20 05:51:32,923 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 20 [2023-12-20 05:51:32,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:32,923 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-12-20 05:51:32,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 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) [2023-12-20 05:51:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-12-20 05:51:32,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-20 05:51:32,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:32,925 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:32,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:33,139 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 [2023-12-20 05:51:33,140 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:33,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1968010247, now seen corresponding path program 4 times [2023-12-20 05:51:33,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:33,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476574055] [2023-12-20 05:51:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:33,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:33,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:33,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476574055] [2023-12-20 05:51:33,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476574055] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:33,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567812011] [2023-12-20 05:51:33,350 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-20 05:51:33,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:33,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:33,351 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) [2023-12-20 05:51:33,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 05:51:33,425 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-20 05:51:33,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:33,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 05:51:33,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:33,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:33,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567812011] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:33,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:33,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-12-20 05:51:33,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748027058] [2023-12-20 05:51:33,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:33,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 05:51:33,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 05:51:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2023-12-20 05:51:33,644 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2023-12-20 05:51:33,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:33,686 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2023-12-20 05:51:33,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 05:51:33,687 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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 25 [2023-12-20 05:51:33,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:33,687 INFO L225 Difference]: With dead ends: 54 [2023-12-20 05:51:33,688 INFO L226 Difference]: Without dead ends: 40 [2023-12-20 05:51:33,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2023-12-20 05:51:33,689 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:33,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-20 05:51:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-12-20 05:51:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 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) [2023-12-20 05:51:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2023-12-20 05:51:33,698 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 25 [2023-12-20 05:51:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:33,698 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2023-12-20 05:51:33,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2023-12-20 05:51:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2023-12-20 05:51:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-20 05:51:33,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:33,699 INFO L195 NwaCegarLoop]: trace histogram [24, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:33,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:33,908 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 [2023-12-20 05:51:33,909 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:33,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1704061029, now seen corresponding path program 5 times [2023-12-20 05:51:33,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974624989] [2023-12-20 05:51:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:33,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:34,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:34,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974624989] [2023-12-20 05:51:34,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974624989] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:34,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192183810] [2023-12-20 05:51:34,369 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-20 05:51:34,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:34,386 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) [2023-12-20 05:51:34,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 05:51:38,372 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2023-12-20 05:51:38,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:38,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-20 05:51:38,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:38,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:39,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192183810] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:39,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:39,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 52 [2023-12-20 05:51:39,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247366894] [2023-12-20 05:51:39,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:39,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-20 05:51:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:39,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-20 05:51:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-20 05:51:39,095 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 53 states, 53 states have (on average 1.150943396226415) internal successors, (61), 52 states have internal predecessors, (61), 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) [2023-12-20 05:51:39,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:39,161 INFO L93 Difference]: Finished difference Result 80 states and 109 transitions. [2023-12-20 05:51:39,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-20 05:51:39,162 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.150943396226415) internal successors, (61), 52 states have internal predecessors, (61), 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 38 [2023-12-20 05:51:39,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:39,164 INFO L225 Difference]: With dead ends: 80 [2023-12-20 05:51:39,164 INFO L226 Difference]: Without dead ends: 66 [2023-12-20 05:51:39,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-12-20 05:51:39,166 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:39,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-20 05:51:39,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-20 05:51:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0461538461538462) internal successors, (68), 65 states have internal predecessors, (68), 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) [2023-12-20 05:51:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2023-12-20 05:51:39,175 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 38 [2023-12-20 05:51:39,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:39,175 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2023-12-20 05:51:39,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.150943396226415) internal successors, (61), 52 states have internal predecessors, (61), 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) [2023-12-20 05:51:39,175 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2023-12-20 05:51:39,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 05:51:39,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:39,177 INFO L195 NwaCegarLoop]: trace histogram [50, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:39,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:39,403 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 [2023-12-20 05:51:39,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:39,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1657170011, now seen corresponding path program 6 times [2023-12-20 05:51:39,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:39,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722636123] [2023-12-20 05:51:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 05:51:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722636123] [2023-12-20 05:51:40,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722636123] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:40,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095308575] [2023-12-20 05:51:40,863 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-20 05:51:40,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:40,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:40,864 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) [2023-12-20 05:51:40,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 05:51:41,116 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-12-20 05:51:41,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:41,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 05:51:41,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2023-12-20 05:51:41,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2023-12-20 05:51:41,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095308575] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:41,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:41,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 9, 9] total 67 [2023-12-20 05:51:41,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319150680] [2023-12-20 05:51:41,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:41,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-12-20 05:51:41,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:41,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-12-20 05:51:41,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2023-12-20 05:51:41,463 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 67 states, 67 states have (on average 1.164179104477612) internal successors, (78), 67 states have internal predecessors, (78), 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) [2023-12-20 05:51:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:41,529 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2023-12-20 05:51:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-20 05:51:41,530 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.164179104477612) internal successors, (78), 67 states have internal predecessors, (78), 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 64 [2023-12-20 05:51:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:41,532 INFO L225 Difference]: With dead ends: 89 [2023-12-20 05:51:41,532 INFO L226 Difference]: Without dead ends: 75 [2023-12-20 05:51:41,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2023-12-20 05:51:41,534 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:41,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 05:51:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-20 05:51:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-20 05:51:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.0405405405405406) internal successors, (77), 74 states have internal predecessors, (77), 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) [2023-12-20 05:51:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2023-12-20 05:51:41,552 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 64 [2023-12-20 05:51:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:41,553 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2023-12-20 05:51:41,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.164179104477612) internal successors, (78), 67 states have internal predecessors, (78), 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) [2023-12-20 05:51:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2023-12-20 05:51:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 05:51:41,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:41,555 INFO L195 NwaCegarLoop]: trace histogram [51, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:41,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:41,762 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 [2023-12-20 05:51:41,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:41,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:41,763 INFO L85 PathProgramCache]: Analyzing trace with hash -905061767, now seen corresponding path program 7 times [2023-12-20 05:51:41,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:41,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723567428] [2023-12-20 05:51:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:41,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:43,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723567428] [2023-12-20 05:51:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723567428] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385416163] [2023-12-20 05:51:43,421 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-20 05:51:43,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:43,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:43,423 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) [2023-12-20 05:51:43,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 05:51:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:43,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-20 05:51:43,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:43,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:45,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385416163] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:45,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:45,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 106 [2023-12-20 05:51:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716982126] [2023-12-20 05:51:45,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:45,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-12-20 05:51:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-12-20 05:51:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2023-12-20 05:51:45,998 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 107 states, 107 states have (on average 1.074766355140187) internal successors, (115), 106 states have internal predecessors, (115), 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) [2023-12-20 05:51:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:46,118 INFO L93 Difference]: Finished difference Result 150 states and 206 transitions. [2023-12-20 05:51:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-12-20 05:51:46,119 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.074766355140187) internal successors, (115), 106 states have internal predecessors, (115), 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 73 [2023-12-20 05:51:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:46,119 INFO L225 Difference]: With dead ends: 150 [2023-12-20 05:51:46,120 INFO L226 Difference]: Without dead ends: 128 [2023-12-20 05:51:46,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2023-12-20 05:51:46,123 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:46,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 05:51:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-20 05:51:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-20 05:51:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.0236220472440944) internal successors, (130), 127 states have internal predecessors, (130), 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) [2023-12-20 05:51:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2023-12-20 05:51:46,135 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 73 [2023-12-20 05:51:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:46,136 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2023-12-20 05:51:46,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.074766355140187) internal successors, (115), 106 states have internal predecessors, (115), 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) [2023-12-20 05:51:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2023-12-20 05:51:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-20 05:51:46,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:46,140 INFO L195 NwaCegarLoop]: trace histogram [104, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:46,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:46,346 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 [2023-12-20 05:51:46,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:46,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:46,346 INFO L85 PathProgramCache]: Analyzing trace with hash 741213467, now seen corresponding path program 8 times [2023-12-20 05:51:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:46,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616128052] [2023-12-20 05:51:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:51:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:50,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:51:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616128052] [2023-12-20 05:51:50,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616128052] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:51:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061980297] [2023-12-20 05:51:50,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 05:51:50,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:51:50,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:51:50,473 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) [2023-12-20 05:51:50,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 05:51:50,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-20 05:51:50,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:51:50,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 106 conjunts are in the unsatisfiable core [2023-12-20 05:51:50,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:51:50,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:50,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:51:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:51:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061980297] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:51:58,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:51:58,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106, 106] total 212 [2023-12-20 05:51:58,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882912386] [2023-12-20 05:51:58,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:51:58,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2023-12-20 05:51:58,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:51:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2023-12-20 05:51:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2023-12-20 05:51:58,287 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 213 states, 213 states have (on average 1.0375586854460095) internal successors, (221), 212 states have internal predecessors, (221), 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) [2023-12-20 05:51:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:51:58,701 INFO L93 Difference]: Finished difference Result 256 states and 365 transitions. [2023-12-20 05:51:58,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2023-12-20 05:51:58,702 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 1.0375586854460095) internal successors, (221), 212 states have internal predecessors, (221), 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 [2023-12-20 05:51:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:51:58,703 INFO L225 Difference]: With dead ends: 256 [2023-12-20 05:51:58,703 INFO L226 Difference]: Without dead ends: 234 [2023-12-20 05:51:58,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2023-12-20 05:51:58,707 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 05:51:58,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 05:51:58,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-20 05:51:58,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-20 05:51:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0128755364806867) internal successors, (236), 233 states have internal predecessors, (236), 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) [2023-12-20 05:51:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 236 transitions. [2023-12-20 05:51:58,713 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 236 transitions. Word has length 126 [2023-12-20 05:51:58,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:51:58,714 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 236 transitions. [2023-12-20 05:51:58,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 1.0375586854460095) internal successors, (221), 212 states have internal predecessors, (221), 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) [2023-12-20 05:51:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 236 transitions. [2023-12-20 05:51:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-20 05:51:58,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:51:58,718 INFO L195 NwaCegarLoop]: trace histogram [210, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:51:58,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 05:51:58,925 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 [2023-12-20 05:51:58,926 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:51:58,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:51:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1163652059, now seen corresponding path program 9 times [2023-12-20 05:51:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:51:58,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738183867] [2023-12-20 05:51:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:51:58,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:51:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:52:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 22155 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-20 05:52:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:52:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738183867] [2023-12-20 05:52:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738183867] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:52:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159704174] [2023-12-20 05:52:13,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-20 05:52:13,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:52:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:52:13,924 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) [2023-12-20 05:52:13,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 05:52:14,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-12-20 05:52:14,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:52:14,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-20 05:52:14,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:52:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 210 proven. 105 refuted. 0 times theorem prover too weak. 21945 trivial. 0 not checked. [2023-12-20 05:52:15,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:52:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 22260 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 22155 trivial. 0 not checked. [2023-12-20 05:52:16,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159704174] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:52:16,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:52:16,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [212, 18, 17] total 244 [2023-12-20 05:52:16,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829561097] [2023-12-20 05:52:16,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:52:16,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 244 states [2023-12-20 05:52:16,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:52:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2023-12-20 05:52:16,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23286, Invalid=36006, Unknown=0, NotChecked=0, Total=59292 [2023-12-20 05:52:16,421 INFO L87 Difference]: Start difference. First operand 234 states and 236 transitions. Second operand has 244 states, 244 states have (on average 1.0491803278688525) internal successors, (256), 244 states have internal predecessors, (256), 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) [2023-12-20 05:52:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:52:18,625 INFO L93 Difference]: Finished difference Result 273 states and 293 transitions. [2023-12-20 05:52:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2023-12-20 05:52:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 244 states, 244 states have (on average 1.0491803278688525) internal successors, (256), 244 states have internal predecessors, (256), 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 232 [2023-12-20 05:52:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:52:18,627 INFO L225 Difference]: With dead ends: 273 [2023-12-20 05:52:18,627 INFO L226 Difference]: Without dead ends: 251 [2023-12-20 05:52:18,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6856 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=24276, Invalid=50526, Unknown=0, NotChecked=0, Total=74802 [2023-12-20 05:52:18,631 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 40 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 05:52:18,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 86 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 05:52:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-20 05:52:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2023-12-20 05:52:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.012) internal successors, (253), 250 states have internal predecessors, (253), 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) [2023-12-20 05:52:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 253 transitions. [2023-12-20 05:52:18,640 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 253 transitions. Word has length 232 [2023-12-20 05:52:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:52:18,641 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 253 transitions. [2023-12-20 05:52:18,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 244 states, 244 states have (on average 1.0491803278688525) internal successors, (256), 244 states have internal predecessors, (256), 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) [2023-12-20 05:52:18,641 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 253 transitions. [2023-12-20 05:52:18,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-12-20 05:52:18,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:52:18,642 INFO L195 NwaCegarLoop]: trace histogram [211, 30, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:52:18,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 05:52:18,849 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 [2023-12-20 05:52:18,850 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:52:18,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:52:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1966858617, now seen corresponding path program 10 times [2023-12-20 05:52:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:52:18,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446518439] [2023-12-20 05:52:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:52:18,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:52:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:52:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22831 backedges. 0 proven. 22366 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-20 05:52:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:52:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446518439] [2023-12-20 05:52:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446518439] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:52:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587941975] [2023-12-20 05:52:38,741 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-20 05:52:38,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:52:38,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:52:38,756 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) [2023-12-20 05:52:38,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 05:52:39,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-20 05:52:39,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 05:52:39,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 2168 conjuncts, 213 conjunts are in the unsatisfiable core [2023-12-20 05:52:39,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 05:52:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 22831 backedges. 0 proven. 22366 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-20 05:52:39,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 05:53:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 22831 backedges. 0 proven. 22366 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-20 05:53:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587941975] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 05:53:11,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 05:53:11,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 426 [2023-12-20 05:53:11,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390268215] [2023-12-20 05:53:11,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 05:53:11,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 427 states [2023-12-20 05:53:11,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 05:53:11,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 427 interpolants. [2023-12-20 05:53:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2023-12-20 05:53:11,079 INFO L87 Difference]: Start difference. First operand 251 states and 253 transitions. Second operand has 427 states, 427 states have (on average 1.018735362997658) internal successors, (435), 426 states have internal predecessors, (435), 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) [2023-12-20 05:53:12,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 05:53:12,814 INFO L93 Difference]: Finished difference Result 502 states and 718 transitions. [2023-12-20 05:53:12,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 426 states. [2023-12-20 05:53:12,815 INFO L78 Accepts]: Start accepts. Automaton has has 427 states, 427 states have (on average 1.018735362997658) internal successors, (435), 426 states have internal predecessors, (435), 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 249 [2023-12-20 05:53:12,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 05:53:12,816 INFO L225 Difference]: With dead ends: 502 [2023-12-20 05:53:12,816 INFO L226 Difference]: Without dead ends: 464 [2023-12-20 05:53:12,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 844 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2023-12-20 05:53:12,822 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 05:53:12,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 05:53:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-20 05:53:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2023-12-20 05:53:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.0064794816414686) internal successors, (466), 463 states have internal predecessors, (466), 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) [2023-12-20 05:53:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 466 transitions. [2023-12-20 05:53:12,835 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 466 transitions. Word has length 249 [2023-12-20 05:53:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 05:53:12,835 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 466 transitions. [2023-12-20 05:53:12,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 427 states, 427 states have (on average 1.018735362997658) internal successors, (435), 426 states have internal predecessors, (435), 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) [2023-12-20 05:53:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 466 transitions. [2023-12-20 05:53:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-12-20 05:53:12,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 05:53:12,839 INFO L195 NwaCegarLoop]: trace histogram [424, 30, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 05:53:12,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 05:53:13,047 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 [2023-12-20 05:53:13,048 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 05:53:13,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 05:53:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1919290395, now seen corresponding path program 11 times [2023-12-20 05:53:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 05:53:13,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810050637] [2023-12-20 05:53:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 05:53:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 05:53:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 05:54:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 90565 backedges. 0 proven. 90100 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-20 05:54:24,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 05:54:24,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810050637] [2023-12-20 05:54:24,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810050637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 05:54:24,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075976115] [2023-12-20 05:54:24,875 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-20 05:54:24,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 05:54:24,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 05:54:24,876 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) [2023-12-20 05:54:24,877 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... [2023-12-20 06:06:03,764 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 [2023-12-20 06:06:03,788 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 [2023-12-20 06:06:04,789 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 [2023-12-20 06:06:04,989 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forcibly destroying the process [2023-12-20 06:06:05,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 137 [2023-12-20 06:06:05,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 06:06:05,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-20 06:06:05,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [426] total 426 [2023-12-20 06:06:05,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535338469] [2023-12-20 06:06:05,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-20 06:06:05,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 427 states [2023-12-20 06:06:05,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 06:06:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 427 interpolants. [2023-12-20 06:06:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2023-12-20 06:06:05,047 INFO L87 Difference]: Start difference. First operand 464 states and 466 transitions. Second operand has 427 states, 427 states have (on average 1.0140515222482436) internal successors, (433), 426 states have internal predecessors, (433), 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) [2023-12-20 06:06:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 06:06:05,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.2s TimeCoverageRelationStatistics Valid=90951, Invalid=90951, Unknown=0, NotChecked=0, Total=181902 [2023-12-20 06:06:05,065 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 [2023-12-20 06:06:05,065 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] [2023-12-20 06:06:05,066 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 06:06:05,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 06:06:05,067 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (464states) and FLOYD_HOARE automaton (currently 2 states, 427 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-20 06:06:05,071 INFO L445 BasicCegarLoop]: Path program histogram: [11, 1, 1] [2023-12-20 06:06:05,073 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 06:06:05,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 06:06:05 BoogieIcfgContainer [2023-12-20 06:06:05,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 06:06:05,075 INFO L158 Benchmark]: Toolchain (without parser) took 874724.43ms. Allocated memory was 291.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 252.6MB in the beginning and 623.5MB in the end (delta: -370.9MB). Peak memory consumption was 914.5MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,075 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 06:06:05,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.96ms. Allocated memory is still 291.5MB. Free memory was 252.6MB in the beginning and 241.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.06ms. Allocated memory is still 291.5MB. Free memory was 241.6MB in the beginning and 240.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,076 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 291.5MB. Free memory was 240.0MB in the beginning and 237.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,076 INFO L158 Benchmark]: RCFGBuilder took 242.47ms. Allocated memory is still 291.5MB. Free memory was 237.9MB in the beginning and 226.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,076 INFO L158 Benchmark]: TraceAbstraction took 874274.61ms. Allocated memory was 291.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 225.3MB in the beginning and 623.5MB in the end (delta: -398.2MB). Peak memory consumption was 887.2MB. Max. memory is 8.0GB. [2023-12-20 06:06:05,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 145.96ms. Allocated memory is still 291.5MB. Free memory was 252.6MB in the beginning and 241.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.06ms. Allocated memory is still 291.5MB. Free memory was 241.6MB in the beginning and 240.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.15ms. Allocated memory is still 291.5MB. Free memory was 240.0MB in the beginning and 237.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 242.47ms. Allocated memory is still 291.5MB. Free memory was 237.9MB in the beginning and 226.0MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 874274.61ms. Allocated memory was 291.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 225.3MB in the beginning and 623.5MB in the end (delta: -398.2MB). Peak memory consumption was 887.2MB. 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 (464states) and FLOYD_HOARE automaton (currently 2 states, 427 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 874.2s, OverallIterations: 13, TraceHistogramMax: 424, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 546 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 450 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1429 IncrementalHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 96 mSDtfsCounter, 1429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2843 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 1617 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9235 ImplicationChecksByTransitivity, 113.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=464occurred in iteration=12, InterpolantAutomatonStates: 1178, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 158.7s InterpolantComputationTime, 2188 NumberOfCodeBlocks, 1946 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 3004 ConstructedInterpolants, 0 QuantifiedInterpolants, 6982 SizeOfPredicates, 1 NumberOfNonLiveVariables, 5222 ConjunctsInSsa, 459 ConjunctsInUnsatCore, 34 InterpolantComputations, 2 PerfectInterpolantSequences, 49731/252153 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