/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/eca-rers2012/Problem02_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 15:01:47,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 15:01:48,046 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 15:01:48,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 15:01:48,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 15:01:48,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 15:01:48,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 15:01:48,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 15:01:48,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 15:01:48,083 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 15:01:48,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 15:01:48,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 15:01:48,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 15:01:48,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 15:01:48,086 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 15:01:48,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 15:01:48,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 15:01:48,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 15:01:48,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 15:01:48,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 15:01:48,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 15:01:48,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 15:01:48,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 15:01:48,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 15:01:48,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 15:01:48,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 15:01:48,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 15:01:48,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 15:01:48,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 15:01:48,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 15:01:48,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 15:01:48,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 15:01:48,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 15:01:48,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 15:01:48,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 15:01:48,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 15:01:48,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 15:01:48,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 15:01:48,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 15:01:48,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 15:01:48,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 15:01:48,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 15:01:48,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 15:01:48,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 15:01:48,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 15:01:48,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 15:01:48,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 15:01:48,376 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 15:01:48,376 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 15:01:48,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label39.c [2023-12-20 15:01:49,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 15:01:49,839 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 15:01:49,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label39.c [2023-12-20 15:01:49,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ae5778c/72029a36e23444aaa03a3fe6d37cf96a/FLAG949bff827 [2023-12-20 15:01:49,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82ae5778c/72029a36e23444aaa03a3fe6d37cf96a [2023-12-20 15:01:49,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 15:01:49,889 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 15:01:49,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 15:01:49,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 15:01:49,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 15:01:49,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:01:49" (1/1) ... [2023-12-20 15:01:49,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a55ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:49, skipping insertion in model container [2023-12-20 15:01:49,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:01:49" (1/1) ... [2023-12-20 15:01:49,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 15:01:50,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label39.c[18036,18049] [2023-12-20 15:01:50,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 15:01:50,224 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 15:01:50,338 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label39.c[18036,18049] [2023-12-20 15:01:50,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 15:01:50,360 INFO L206 MainTranslator]: Completed translation [2023-12-20 15:01:50,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50 WrapperNode [2023-12-20 15:01:50,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 15:01:50,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 15:01:50,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 15:01:50,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 15:01:50,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,440 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2023-12-20 15:01:50,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 15:01:50,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 15:01:50,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 15:01:50,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 15:01:50,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,475 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 15:01:50,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 15:01:50,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 15:01:50,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 15:01:50,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 15:01:50,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (1/1) ... [2023-12-20 15:01:50,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 15:01:50,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 15:01:50,569 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 15:01:50,595 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 15:01:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 15:01:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 15:01:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 15:01:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 15:01:50,678 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 15:01:50,681 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 15:01:51,636 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 15:01:51,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 15:01:51,696 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 15:01:51,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:01:51 BoogieIcfgContainer [2023-12-20 15:01:51,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 15:01:51,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 15:01:51,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 15:01:51,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 15:01:51,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:01:49" (1/3) ... [2023-12-20 15:01:51,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a376dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:01:51, skipping insertion in model container [2023-12-20 15:01:51,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:01:50" (2/3) ... [2023-12-20 15:01:51,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a376dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:01:51, skipping insertion in model container [2023-12-20 15:01:51,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:01:51" (3/3) ... [2023-12-20 15:01:51,704 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label39.c [2023-12-20 15:01:51,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 15:01:51,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 15:01:51,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 15:01:51,785 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;@74d460f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 15:01:51,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 15:01:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 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 15:01:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 15:01:51,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:51,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:51,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:51,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:51,811 INFO L85 PathProgramCache]: Analyzing trace with hash -520437640, now seen corresponding path program 1 times [2023-12-20 15:01:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:51,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096268502] [2023-12-20 15:01:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:51,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:52,164 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 15:01:52,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096268502] [2023-12-20 15:01:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096268502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:52,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 15:01:52,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142556181] [2023-12-20 15:01:52,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:52,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 15:01:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:52,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 15:01:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 15:01:52,199 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 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 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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 15:01:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:52,254 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2023-12-20 15:01:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 15:01:52,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2023-12-20 15:01:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:52,268 INFO L225 Difference]: With dead ends: 329 [2023-12-20 15:01:52,268 INFO L226 Difference]: Without dead ends: 163 [2023-12-20 15:01:52,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 15:01:52,277 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:52,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 15:01:52,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-20 15:01:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-12-20 15:01:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 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 15:01:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2023-12-20 15:01:52,327 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 110 [2023-12-20 15:01:52,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:52,328 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2023-12-20 15:01:52,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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 15:01:52,329 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2023-12-20 15:01:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 15:01:52,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:52,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:52,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 15:01:52,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:52,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:52,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1286413269, now seen corresponding path program 1 times [2023-12-20 15:01:52,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152922804] [2023-12-20 15:01:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:52,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:52,717 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 15:01:52,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:52,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152922804] [2023-12-20 15:01:52,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152922804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:52,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:52,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 15:01:52,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981503818] [2023-12-20 15:01:52,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:52,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:52,721 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 15:01:53,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:53,188 INFO L93 Difference]: Finished difference Result 479 states and 731 transitions. [2023-12-20 15:01:53,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:53,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110 [2023-12-20 15:01:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:53,198 INFO L225 Difference]: With dead ends: 479 [2023-12-20 15:01:53,198 INFO L226 Difference]: Without dead ends: 317 [2023-12-20 15:01:53,201 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 15:01:53,202 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 95 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:53,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 72 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 15:01:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-20 15:01:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-12-20 15:01:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4746835443037976) internal successors, (466), 316 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 15:01:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 466 transitions. [2023-12-20 15:01:53,222 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 466 transitions. Word has length 110 [2023-12-20 15:01:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:53,222 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 466 transitions. [2023-12-20 15:01:53,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 15:01:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 466 transitions. [2023-12-20 15:01:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-20 15:01:53,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:53,229 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:53,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 15:01:53,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:53,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2689376, now seen corresponding path program 1 times [2023-12-20 15:01:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022970639] [2023-12-20 15:01:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:53,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:53,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:53,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022970639] [2023-12-20 15:01:53,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022970639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:53,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:53,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 15:01:53,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818923669] [2023-12-20 15:01:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:53,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:53,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:53,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:53,490 INFO L87 Difference]: Start difference. First operand 317 states and 466 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 15:01:53,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:53,980 INFO L93 Difference]: Finished difference Result 918 states and 1356 transitions. [2023-12-20 15:01:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:53,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-20 15:01:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:53,983 INFO L225 Difference]: With dead ends: 918 [2023-12-20 15:01:53,983 INFO L226 Difference]: Without dead ends: 602 [2023-12-20 15:01:53,984 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 15:01:53,985 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 144 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:53,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 119 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 15:01:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-12-20 15:01:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2023-12-20 15:01:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.2938230383973288) internal successors, (775), 599 states have internal predecessors, (775), 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 15:01:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 775 transitions. [2023-12-20 15:01:54,009 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 775 transitions. Word has length 114 [2023-12-20 15:01:54,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:54,010 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 775 transitions. [2023-12-20 15:01:54,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 15:01:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 775 transitions. [2023-12-20 15:01:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-20 15:01:54,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:54,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:54,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 15:01:54,012 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:54,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2027035675, now seen corresponding path program 1 times [2023-12-20 15:01:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:54,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944000184] [2023-12-20 15:01:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:54,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:54,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944000184] [2023-12-20 15:01:54,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944000184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:54,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:54,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:54,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671957555] [2023-12-20 15:01:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:54,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:54,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:54,190 INFO L87 Difference]: Start difference. First operand 600 states and 775 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 15:01:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:54,661 INFO L93 Difference]: Finished difference Result 1485 states and 1975 transitions. [2023-12-20 15:01:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2023-12-20 15:01:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:54,671 INFO L225 Difference]: With dead ends: 1485 [2023-12-20 15:01:54,671 INFO L226 Difference]: Without dead ends: 886 [2023-12-20 15:01:54,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:54,681 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 144 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:54,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 252 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 15:01:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-12-20 15:01:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 884. [2023-12-20 15:01:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.233295583238958) internal successors, (1089), 883 states have internal predecessors, (1089), 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 15:01:54,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1089 transitions. [2023-12-20 15:01:54,705 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1089 transitions. Word has length 119 [2023-12-20 15:01:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:54,705 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1089 transitions. [2023-12-20 15:01:54,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 15:01:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1089 transitions. [2023-12-20 15:01:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-20 15:01:54,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:54,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:54,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 15:01:54,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:54,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:54,712 INFO L85 PathProgramCache]: Analyzing trace with hash -465438417, now seen corresponding path program 1 times [2023-12-20 15:01:54,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:54,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169749161] [2023-12-20 15:01:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:54,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169749161] [2023-12-20 15:01:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169749161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:54,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:54,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 15:01:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203886202] [2023-12-20 15:01:54,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:54,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:54,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:54,787 INFO L87 Difference]: Start difference. First operand 884 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 15:01:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:55,186 INFO L93 Difference]: Finished difference Result 2468 states and 3054 transitions. [2023-12-20 15:01:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2023-12-20 15:01:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:55,192 INFO L225 Difference]: With dead ends: 2468 [2023-12-20 15:01:55,192 INFO L226 Difference]: Without dead ends: 1585 [2023-12-20 15:01:55,194 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 15:01:55,194 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 190 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:55,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 77 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 15:01:55,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-12-20 15:01:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2023-12-20 15:01:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.1963383838383839) internal successors, (1895), 1584 states have internal predecessors, (1895), 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 15:01:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1895 transitions. [2023-12-20 15:01:55,221 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1895 transitions. Word has length 120 [2023-12-20 15:01:55,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:55,222 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 1895 transitions. [2023-12-20 15:01:55,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 15:01:55,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1895 transitions. [2023-12-20 15:01:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-20 15:01:55,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:55,225 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:55,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 15:01:55,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:55,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:55,226 INFO L85 PathProgramCache]: Analyzing trace with hash 61171375, now seen corresponding path program 1 times [2023-12-20 15:01:55,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:55,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474349466] [2023-12-20 15:01:55,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:55,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:55,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:55,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474349466] [2023-12-20 15:01:55,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474349466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:55,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:55,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:55,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344621329] [2023-12-20 15:01:55,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:55,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:55,370 INFO L87 Difference]: Start difference. First operand 1585 states and 1895 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 15:01:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:55,766 INFO L93 Difference]: Finished difference Result 3730 states and 4457 transitions. [2023-12-20 15:01:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:55,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2023-12-20 15:01:55,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:55,774 INFO L225 Difference]: With dead ends: 3730 [2023-12-20 15:01:55,775 INFO L226 Difference]: Without dead ends: 2146 [2023-12-20 15:01:55,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:55,778 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 143 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:55,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 267 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 15:01:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2023-12-20 15:01:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2145. [2023-12-20 15:01:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.1567164179104477) internal successors, (2480), 2144 states have internal predecessors, (2480), 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 15:01:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2480 transitions. [2023-12-20 15:01:55,843 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2480 transitions. Word has length 123 [2023-12-20 15:01:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:55,845 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 2480 transitions. [2023-12-20 15:01:55,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 15:01:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2480 transitions. [2023-12-20 15:01:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-20 15:01:55,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:55,849 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:55,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 15:01:55,850 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:55,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1181482974, now seen corresponding path program 1 times [2023-12-20 15:01:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:55,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371576349] [2023-12-20 15:01:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:55,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:55,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:55,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371576349] [2023-12-20 15:01:55,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371576349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:55,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:55,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:55,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128854579] [2023-12-20 15:01:55,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:55,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:55,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:55,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:55,977 INFO L87 Difference]: Start difference. First operand 2145 states and 2480 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 15:01:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:56,345 INFO L93 Difference]: Finished difference Result 4290 states and 4961 transitions. [2023-12-20 15:01:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:56,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 139 [2023-12-20 15:01:56,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:56,353 INFO L225 Difference]: With dead ends: 4290 [2023-12-20 15:01:56,353 INFO L226 Difference]: Without dead ends: 2146 [2023-12-20 15:01:56,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:56,364 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 161 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:56,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 50 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:01:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2023-12-20 15:01:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2145. [2023-12-20 15:01:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.131063432835821) internal successors, (2425), 2144 states have internal predecessors, (2425), 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 15:01:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2425 transitions. [2023-12-20 15:01:56,401 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2425 transitions. Word has length 139 [2023-12-20 15:01:56,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:56,401 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 2425 transitions. [2023-12-20 15:01:56,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 15:01:56,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2425 transitions. [2023-12-20 15:01:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 15:01:56,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:56,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:56,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 15:01:56,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:56,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2126526888, now seen corresponding path program 1 times [2023-12-20 15:01:56,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:56,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796761543] [2023-12-20 15:01:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:56,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:56,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:56,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796761543] [2023-12-20 15:01:56,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796761543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:56,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:56,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:56,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344825262] [2023-12-20 15:01:56,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:56,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:56,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:56,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:56,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:56,479 INFO L87 Difference]: Start difference. First operand 2145 states and 2425 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 15:01:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:56,825 INFO L93 Difference]: Finished difference Result 4862 states and 5613 transitions. [2023-12-20 15:01:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:56,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 143 [2023-12-20 15:01:56,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:56,835 INFO L225 Difference]: With dead ends: 4862 [2023-12-20 15:01:56,835 INFO L226 Difference]: Without dead ends: 2718 [2023-12-20 15:01:56,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:56,838 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 145 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:56,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 253 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:01:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2023-12-20 15:01:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2709. [2023-12-20 15:01:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2708 states have (on average 1.1432791728212703) internal successors, (3096), 2708 states have internal predecessors, (3096), 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 15:01:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3096 transitions. [2023-12-20 15:01:56,877 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3096 transitions. Word has length 143 [2023-12-20 15:01:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:56,877 INFO L495 AbstractCegarLoop]: Abstraction has 2709 states and 3096 transitions. [2023-12-20 15:01:56,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 15:01:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3096 transitions. [2023-12-20 15:01:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-20 15:01:56,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:56,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:56,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 15:01:56,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:56,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 254563421, now seen corresponding path program 1 times [2023-12-20 15:01:56,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:56,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969160290] [2023-12-20 15:01:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-20 15:01:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969160290] [2023-12-20 15:01:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969160290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:57,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:57,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013982521] [2023-12-20 15:01:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 15:01:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 15:01:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:01:57,123 INFO L87 Difference]: Start difference. First operand 2709 states and 3096 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 15:01:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:57,657 INFO L93 Difference]: Finished difference Result 6480 states and 7401 transitions. [2023-12-20 15:01:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 15:01:57,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 144 [2023-12-20 15:01:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:57,668 INFO L225 Difference]: With dead ends: 6480 [2023-12-20 15:01:57,669 INFO L226 Difference]: Without dead ends: 3689 [2023-12-20 15:01:57,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:01:57,672 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 141 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:57,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 114 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 15:01:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2023-12-20 15:01:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 2989. [2023-12-20 15:01:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2988 states have (on average 1.1398929049531459) internal successors, (3406), 2988 states have internal predecessors, (3406), 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 15:01:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 3406 transitions. [2023-12-20 15:01:57,726 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 3406 transitions. Word has length 144 [2023-12-20 15:01:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:57,726 INFO L495 AbstractCegarLoop]: Abstraction has 2989 states and 3406 transitions. [2023-12-20 15:01:57,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 15:01:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 3406 transitions. [2023-12-20 15:01:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 15:01:57,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:57,730 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:57,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 15:01:57,730 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:57,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1571141639, now seen corresponding path program 1 times [2023-12-20 15:01:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:57,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892545697] [2023-12-20 15:01:57,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:57,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:57,811 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 15:01:57,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:57,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892545697] [2023-12-20 15:01:57,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892545697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:57,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:57,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:57,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379970399] [2023-12-20 15:01:57,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:57,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:57,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:57,813 INFO L87 Difference]: Start difference. First operand 2989 states and 3406 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 15:01:58,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:58,184 INFO L93 Difference]: Finished difference Result 5539 states and 6327 transitions. [2023-12-20 15:01:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:58,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 174 [2023-12-20 15:01:58,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:58,191 INFO L225 Difference]: With dead ends: 5539 [2023-12-20 15:01:58,191 INFO L226 Difference]: Without dead ends: 2129 [2023-12-20 15:01:58,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:58,195 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 121 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:58,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 249 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:01:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2023-12-20 15:01:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 1849. [2023-12-20 15:01:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1848 states have (on average 1.1011904761904763) internal successors, (2035), 1848 states have internal predecessors, (2035), 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 15:01:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2035 transitions. [2023-12-20 15:01:58,224 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2035 transitions. Word has length 174 [2023-12-20 15:01:58,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:58,224 INFO L495 AbstractCegarLoop]: Abstraction has 1849 states and 2035 transitions. [2023-12-20 15:01:58,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 15:01:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2035 transitions. [2023-12-20 15:01:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-20 15:01:58,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:58,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:58,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 15:01:58,228 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:58,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:58,228 INFO L85 PathProgramCache]: Analyzing trace with hash -910289234, now seen corresponding path program 1 times [2023-12-20 15:01:58,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:58,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556365823] [2023-12-20 15:01:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 15:01:58,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:58,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556365823] [2023-12-20 15:01:58,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556365823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:58,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:58,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 15:01:58,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872098037] [2023-12-20 15:01:58,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:58,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:01:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:58,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:01:58,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 15:01:58,347 INFO L87 Difference]: Start difference. First operand 1849 states and 2035 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 15:01:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:58,730 INFO L93 Difference]: Finished difference Result 4539 states and 5048 transitions. [2023-12-20 15:01:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:01:58,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 182 [2023-12-20 15:01:58,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:58,738 INFO L225 Difference]: With dead ends: 4539 [2023-12-20 15:01:58,738 INFO L226 Difference]: Without dead ends: 2551 [2023-12-20 15:01:58,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:01:58,740 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 139 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:58,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 209 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 15:01:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2023-12-20 15:01:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2410. [2023-12-20 15:01:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 2409 states have (on average 1.103777501037775) internal successors, (2659), 2409 states have internal predecessors, (2659), 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 15:01:58,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 2659 transitions. [2023-12-20 15:01:58,779 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 2659 transitions. Word has length 182 [2023-12-20 15:01:58,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:58,780 INFO L495 AbstractCegarLoop]: Abstraction has 2410 states and 2659 transitions. [2023-12-20 15:01:58,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 15:01:58,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 2659 transitions. [2023-12-20 15:01:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-20 15:01:58,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:58,784 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:58,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 15:01:58,784 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:58,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -917024002, now seen corresponding path program 1 times [2023-12-20 15:01:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133764395] [2023-12-20 15:01:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:58,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133764395] [2023-12-20 15:01:58,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133764395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:01:58,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:01:58,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 15:01:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072782130] [2023-12-20 15:01:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:01:58,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 15:01:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:01:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 15:01:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:01:58,969 INFO L87 Difference]: Start difference. First operand 2410 states and 2659 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 15:01:59,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:01:59,477 INFO L93 Difference]: Finished difference Result 5104 states and 5616 transitions. [2023-12-20 15:01:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 15:01:59,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 208 [2023-12-20 15:01:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:01:59,484 INFO L225 Difference]: With dead ends: 5104 [2023-12-20 15:01:59,484 INFO L226 Difference]: Without dead ends: 2274 [2023-12-20 15:01:59,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:01:59,487 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 386 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 15:01:59,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 246 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 15:01:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2023-12-20 15:01:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2129. [2023-12-20 15:01:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2128 states have (on average 1.068609022556391) internal successors, (2274), 2128 states have internal predecessors, (2274), 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 15:01:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2274 transitions. [2023-12-20 15:01:59,517 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2274 transitions. Word has length 208 [2023-12-20 15:01:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:01:59,518 INFO L495 AbstractCegarLoop]: Abstraction has 2129 states and 2274 transitions. [2023-12-20 15:01:59,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 15:01:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2274 transitions. [2023-12-20 15:01:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-20 15:01:59,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:01:59,521 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:01:59,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 15:01:59,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:01:59,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:01:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash 195296090, now seen corresponding path program 1 times [2023-12-20 15:01:59,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:01:59,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215990907] [2023-12-20 15:01:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:59,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:01:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:01:59,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:01:59,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215990907] [2023-12-20 15:01:59,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215990907] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 15:01:59,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016335961] [2023-12-20 15:01:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:01:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 15:01:59,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 15:01:59,712 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 15:01:59,747 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 15:01:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:01:59,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 15:01:59,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 15:02:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-20 15:02:00,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 15:02:00,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016335961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:02:00,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 15:02:00,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-12-20 15:02:00,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610099286] [2023-12-20 15:02:00,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:02:00,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:02:00,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:02:00,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:02:00,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 15:02:00,046 INFO L87 Difference]: Start difference. First operand 2129 states and 2274 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 15:02:00,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:02:00,409 INFO L93 Difference]: Finished difference Result 4817 states and 5150 transitions. [2023-12-20 15:02:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:02:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 214 [2023-12-20 15:02:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:02:00,415 INFO L225 Difference]: With dead ends: 4817 [2023-12-20 15:02:00,415 INFO L226 Difference]: Without dead ends: 1843 [2023-12-20 15:02:00,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 15:02:00,418 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 34 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:02:00,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 236 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:02:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-12-20 15:02:00,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2023-12-20 15:02:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1842 states have (on average 1.0521172638436482) internal successors, (1938), 1842 states have internal predecessors, (1938), 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 15:02:00,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 1938 transitions. [2023-12-20 15:02:00,443 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 1938 transitions. Word has length 214 [2023-12-20 15:02:00,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:02:00,444 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 1938 transitions. [2023-12-20 15:02:00,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 15:02:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 1938 transitions. [2023-12-20 15:02:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-20 15:02:00,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:02:00,448 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:02:00,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 15:02:00,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-20 15:02:00,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:02:00,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:02:00,655 INFO L85 PathProgramCache]: Analyzing trace with hash -983222164, now seen corresponding path program 1 times [2023-12-20 15:02:00,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:02:00,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002493109] [2023-12-20 15:02:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:02:00,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:02:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:02:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:02:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:02:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002493109] [2023-12-20 15:02:01,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002493109] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 15:02:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942753408] [2023-12-20 15:02:01,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:02:01,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 15:02:01,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 15:02:01,137 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 15:02:01,147 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 15:02:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:02:01,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 15:02:01,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 15:02:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-20 15:02:01,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 15:02:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942753408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:02:01,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 15:02:01,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 15:02:01,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155000883] [2023-12-20 15:02:01,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:02:01,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:02:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:02:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:02:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 15:02:01,376 INFO L87 Difference]: Start difference. First operand 1843 states and 1938 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 15:02:01,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:02:01,695 INFO L93 Difference]: Finished difference Result 3257 states and 3438 transitions. [2023-12-20 15:02:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:02:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 240 [2023-12-20 15:02:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:02:01,699 INFO L225 Difference]: With dead ends: 3257 [2023-12-20 15:02:01,699 INFO L226 Difference]: Without dead ends: 1275 [2023-12-20 15:02:01,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 15:02:01,702 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:02:01,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:02:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2023-12-20 15:02:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1275. [2023-12-20 15:02:01,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 1.0392464678178963) internal successors, (1324), 1274 states have internal predecessors, (1324), 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 15:02:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1324 transitions. [2023-12-20 15:02:01,720 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1324 transitions. Word has length 240 [2023-12-20 15:02:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:02:01,721 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1324 transitions. [2023-12-20 15:02:01,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 15:02:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1324 transitions. [2023-12-20 15:02:01,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-20 15:02:01,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:02:01,724 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:02:01,733 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 15:02:01,930 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,SelfDestructingSolverStorable13 [2023-12-20 15:02:01,931 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:02:01,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:02:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash 771425670, now seen corresponding path program 1 times [2023-12-20 15:02:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:02:01,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736213478] [2023-12-20 15:02:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:02:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:02:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:02:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 15:02:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:02:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736213478] [2023-12-20 15:02:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736213478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:02:02,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 15:02:02,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 15:02:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563573323] [2023-12-20 15:02:02,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:02:02,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 15:02:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:02:02,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 15:02:02,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:02:02,183 INFO L87 Difference]: Start difference. First operand 1275 states and 1324 transitions. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 15:02:02,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:02:02,519 INFO L93 Difference]: Finished difference Result 2409 states and 2506 transitions. [2023-12-20 15:02:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:02:02,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 245 [2023-12-20 15:02:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:02:02,522 INFO L225 Difference]: With dead ends: 2409 [2023-12-20 15:02:02,522 INFO L226 Difference]: Without dead ends: 991 [2023-12-20 15:02:02,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 15:02:02,525 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 106 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 15:02:02,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 188 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 15:02:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-12-20 15:02:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 990. [2023-12-20 15:02:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 989 states have (on average 1.0232558139534884) internal successors, (1012), 989 states have internal predecessors, (1012), 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 15:02:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1012 transitions. [2023-12-20 15:02:02,538 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1012 transitions. Word has length 245 [2023-12-20 15:02:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:02:02,538 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1012 transitions. [2023-12-20 15:02:02,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 15:02:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1012 transitions. [2023-12-20 15:02:02,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-20 15:02:02,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 15:02:02,542 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:02:02,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 15:02:02,542 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 15:02:02,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 15:02:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash -571821635, now seen corresponding path program 1 times [2023-12-20 15:02:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 15:02:02,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68212034] [2023-12-20 15:02:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:02:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 15:02:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:02:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 94 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-20 15:02:03,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 15:02:03,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68212034] [2023-12-20 15:02:03,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68212034] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 15:02:03,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778396910] [2023-12-20 15:02:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 15:02:03,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 15:02:03,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 15:02:03,065 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 15:02:03,068 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 15:02:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 15:02:03,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 15:02:03,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 15:02:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-20 15:02:03,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 15:02:03,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778396910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 15:02:03,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 15:02:03,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-20 15:02:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672309109] [2023-12-20 15:02:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 15:02:03,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 15:02:03,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 15:02:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 15:02:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 15:02:03,355 INFO L87 Difference]: Start difference. First operand 990 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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 15:02:03,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 15:02:03,594 INFO L93 Difference]: Finished difference Result 1556 states and 1597 transitions. [2023-12-20 15:02:03,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 15:02:03,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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 280 [2023-12-20 15:02:03,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 15:02:03,595 INFO L225 Difference]: With dead ends: 1556 [2023-12-20 15:02:03,595 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 15:02:03,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 15:02:03,601 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 75 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 15:02:03,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 35 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 15:02:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 15:02:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 15:02:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 15:02:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 15:02:03,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2023-12-20 15:02:03,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 15:02:03,602 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 15:02:03,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 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 15:02:03,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 15:02:03,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 15:02:03,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 15:02:03,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 15:02:03,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 15:02:03,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 15:02:04,157 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,157 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,157 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,157 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2023-12-20 15:02:04,157 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2023-12-20 15:02:04,158 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,159 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2023-12-20 15:02:04,160 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2023-12-20 15:02:04,161 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,162 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2023-12-20 15:02:04,163 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,164 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2023-12-20 15:02:04,165 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2023-12-20 15:02:04,166 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L610(lines 610 627) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,167 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2023-12-20 15:02:04,168 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2023-12-20 15:02:04,168 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-12-20 15:02:04,168 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a25~0 1))) (let ((.cse7 (<= ~a25~0 0)) (.cse8 (= ~a28~0 10)) (.cse9 (not .cse3)) (.cse10 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a11~0 0)) (.cse11 (= ~a17~0 8)) (.cse6 (<= 9 ~a28~0)) (.cse0 (= ~a11~0 1)) (.cse12 (= ~a21~0 1)) (.cse2 (<= ~a28~0 10)) (.cse5 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse4 .cse2) (and .cse6 .cse4 .cse2 .cse5 .cse7) (and .cse0 .cse8 .cse9) (and .cse4 .cse2 .cse7 .cse10) (and .cse0 .cse2 .cse10) (and .cse11 .cse8 .cse12 .cse4 .cse5) (and .cse11 .cse12 .cse4 .cse5 (= ~a25~0 0) (<= ~a28~0 7)) (and (<= 11 ~a28~0) .cse0 .cse9 .cse5) (and .cse3 .cse4 .cse2 .cse10) (and .cse1 .cse4 .cse2 .cse5) (and .cse11 .cse6 .cse0 .cse12 .cse2 .cse5)))) [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,175 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2023-12-20 15:02:04,176 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2023-12-20 15:02:04,177 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2023-12-20 15:02:04,180 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 15:02:04,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 15:02:04,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 03:02:04 BoogieIcfgContainer [2023-12-20 15:02:04,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 15:02:04,203 INFO L158 Benchmark]: Toolchain (without parser) took 14314.12ms. Allocated memory was 326.1MB in the beginning and 542.1MB in the end (delta: 216.0MB). Free memory was 278.0MB in the beginning and 485.4MB in the end (delta: -207.4MB). Peak memory consumption was 310.1MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,203 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 15:02:04,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.63ms. Allocated memory is still 326.1MB. Free memory was 277.5MB in the beginning and 250.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.55ms. Allocated memory is still 326.1MB. Free memory was 250.2MB in the beginning and 244.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,204 INFO L158 Benchmark]: Boogie Preprocessor took 74.24ms. Allocated memory is still 326.1MB. Free memory was 244.5MB in the beginning and 239.2MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,205 INFO L158 Benchmark]: RCFGBuilder took 1180.20ms. Allocated memory is still 326.1MB. Free memory was 239.2MB in the beginning and 238.6MB in the end (delta: 585.5kB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,205 INFO L158 Benchmark]: TraceAbstraction took 12503.90ms. Allocated memory was 326.1MB in the beginning and 542.1MB in the end (delta: 216.0MB). Free memory was 238.1MB in the beginning and 485.4MB in the end (delta: -247.3MB). Peak memory consumption was 268.6MB. Max. memory is 8.0GB. [2023-12-20 15:02:04,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 470.63ms. Allocated memory is still 326.1MB. Free memory was 277.5MB in the beginning and 250.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.55ms. Allocated memory is still 326.1MB. Free memory was 250.2MB in the beginning and 244.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.24ms. Allocated memory is still 326.1MB. Free memory was 244.5MB in the beginning and 239.2MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1180.20ms. Allocated memory is still 326.1MB. Free memory was 239.2MB in the beginning and 238.6MB in the end (delta: 585.5kB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. * TraceAbstraction took 12503.90ms. Allocated memory was 326.1MB in the beginning and 542.1MB in the end (delta: 216.0MB). Free memory was 238.1MB in the beginning and 485.4MB in the end (delta: -247.3MB). Peak memory consumption was 268.6MB. 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 - PositiveResult [Line: 515]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2070 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2070 mSDsluCounter, 2791 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 273 mSDsCounter, 862 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5833 IncrementalHoareTripleChecker+Invalid, 6695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 862 mSolverCounterUnsat, 2518 mSDtfsCounter, 5833 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 782 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2989occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 1282 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 23 NumberOfFragments, 178 HoareAnnotationTreeSize, 1 FormulaSimplifications, 111 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 368 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3399 NumberOfCodeBlocks, 3399 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3380 ConstructedInterpolants, 0 QuantifiedInterpolants, 11603 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1175 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 1816/2045 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((((a11 == 1) && (a17 <= 7)) && (a28 <= 10)) || (((a25 == 1) && (a11 == 0)) && (a19 == 1))) || ((((9 <= a28) && (a17 <= 7)) && (a11 == 0)) && (a28 <= 10))) || (((((9 <= a28) && (a11 == 0)) && (a28 <= 10)) && (a19 == 1)) && (a25 <= 0))) || (((a11 == 1) && (a28 == 10)) && !((a25 == 1)))) || ((((a11 == 0) && (a28 <= 10)) && (a25 <= 0)) && (a19 <= 0))) || (((a11 == 1) && (a28 <= 10)) && (a19 <= 0))) || (((((a17 == 8) && (a28 == 10)) && (a21 == 1)) && (a11 == 0)) && (a19 == 1))) || ((((((a17 == 8) && (a21 == 1)) && (a11 == 0)) && (a19 == 1)) && (a25 == 0)) && (a28 <= 7))) || ((((11 <= a28) && (a11 == 1)) && !((a25 == 1))) && (a19 == 1))) || ((((a25 == 1) && (a11 == 0)) && (a28 <= 10)) && (a19 <= 0))) || ((((a17 <= 7) && (a11 == 0)) && (a28 <= 10)) && (a19 == 1))) || ((((((a17 == 8) && (9 <= a28)) && (a11 == 1)) && (a21 == 1)) && (a28 <= 10)) && (a19 == 1))) RESULT: Ultimate proved your program to be correct! [2023-12-20 15:02:04,228 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 Received shutdown request...