/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:00:55,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:00:55,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 18:00:55,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:00:55,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:00:55,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:00:55,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:00:55,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:00:55,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:00:55,477 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:00:55,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:00:55,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:00:55,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:00:55,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:00:55,478 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:00:55,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:00:55,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:00:55,480 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:00:55,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:00:55,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:00:55,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:00:55,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:00:55,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:00:55,483 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:00:55,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:00:55,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:00:55,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:00:55,689 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:00:55,689 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:00:55,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:00:56,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:00:56,946 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:00:56,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:00:56,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99f1cba6/c9aa283c2e6f469babfa381b6b3d72fe/FLAGcf5f3dddc [2023-12-15 18:00:57,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99f1cba6/c9aa283c2e6f469babfa381b6b3d72fe [2023-12-15 18:00:57,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:00:57,010 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:00:57,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:00:57,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:00:57,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:00:57,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:00:57" (1/1) ... [2023-12-15 18:00:57,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107f626b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:57, skipping insertion in model container [2023-12-15 18:00:57,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:00:57" (1/1) ... [2023-12-15 18:00:57,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:00:57,370 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2023-12-15 18:00:57,403 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2023-12-15 18:00:57,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:00:57,934 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:00:57,975 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2023-12-15 18:00:57,992 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2023-12-15 18:00:58,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:00:58,286 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:00:58,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58 WrapperNode [2023-12-15 18:00:58,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:00:58,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:00:58,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:00:58,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:00:58,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,578 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5210 [2023-12-15 18:00:58,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:00:58,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:00:58,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:00:58,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:00:58,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 18:00:58,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:58,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:59,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:00:59,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:00:59,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:00:59,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:00:59,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (1/1) ... [2023-12-15 18:00:59,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:00:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:00:59,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 18:00:59,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 18:00:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:00:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:00:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:00:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:00:59,178 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:00:59,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:01:02,254 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:01:02,308 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:01:02,308 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 18:01:02,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:02 BoogieIcfgContainer [2023-12-15 18:01:02,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:01:02,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:01:02,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:01:02,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:01:02,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:00:57" (1/3) ... [2023-12-15 18:01:02,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea6e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:02, skipping insertion in model container [2023-12-15 18:01:02,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:00:58" (2/3) ... [2023-12-15 18:01:02,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eea6e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:02, skipping insertion in model container [2023-12-15 18:01:02,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:02" (3/3) ... [2023-12-15 18:01:02,316 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2023-12-15 18:01:02,329 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:01:02,329 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 18:01:02,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:01:02,399 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;@76b3420d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:01:02,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 18:01:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 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) [2023-12-15 18:01:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 18:01:02,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:02,417 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] [2023-12-15 18:01:02,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:02,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash -58125809, now seen corresponding path program 1 times [2023-12-15 18:01:02,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:02,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580026380] [2023-12-15 18:01:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:02,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:02,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580026380] [2023-12-15 18:01:02,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580026380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:02,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:02,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808902941] [2023-12-15 18:01:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:02,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:01:02,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:02,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:01:02,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:02,688 INFO L87 Difference]: Start difference. First operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:02,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:02,758 INFO L93 Difference]: Finished difference Result 1675 states and 3293 transitions. [2023-12-15 18:01:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:01:02,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-15 18:01:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:02,782 INFO L225 Difference]: With dead ends: 1675 [2023-12-15 18:01:02,782 INFO L226 Difference]: Without dead ends: 861 [2023-12-15 18:01:02,793 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 [2023-12-15 18:01:02,796 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:02,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1628 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-15 18:01:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-12-15 18:01:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.8963911525029105) internal successors, (1629), 860 states have internal predecessors, (1629), 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) [2023-12-15 18:01:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1629 transitions. [2023-12-15 18:01:02,848 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1629 transitions. Word has length 25 [2023-12-15 18:01:02,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:02,849 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1629 transitions. [2023-12-15 18:01:02,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:02,849 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1629 transitions. [2023-12-15 18:01:02,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 18:01:02,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:02,850 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] [2023-12-15 18:01:02,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:01:02,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:02,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:02,851 INFO L85 PathProgramCache]: Analyzing trace with hash 364576017, now seen corresponding path program 1 times [2023-12-15 18:01:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:02,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419176121] [2023-12-15 18:01:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:02,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:03,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419176121] [2023-12-15 18:01:03,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419176121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:03,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:03,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267272382] [2023-12-15 18:01:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:03,127 INFO L87 Difference]: Start difference. First operand 861 states and 1629 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:03,219 INFO L93 Difference]: Finished difference Result 917 states and 1718 transitions. [2023-12-15 18:01:03,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-15 18:01:03,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:03,224 INFO L225 Difference]: With dead ends: 917 [2023-12-15 18:01:03,224 INFO L226 Difference]: Without dead ends: 861 [2023-12-15 18:01:03,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:03,225 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:03,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4824 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-15 18:01:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2023-12-15 18:01:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.838183934807916) internal successors, (1579), 860 states have internal predecessors, (1579), 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) [2023-12-15 18:01:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1579 transitions. [2023-12-15 18:01:03,249 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1579 transitions. Word has length 25 [2023-12-15 18:01:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:03,249 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1579 transitions. [2023-12-15 18:01:03,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1579 transitions. [2023-12-15 18:01:03,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-15 18:01:03,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:03,255 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] [2023-12-15 18:01:03,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:01:03,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:03,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2121093177, now seen corresponding path program 1 times [2023-12-15 18:01:03,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:03,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774484140] [2023-12-15 18:01:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:03,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:03,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774484140] [2023-12-15 18:01:03,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774484140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:03,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:03,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147759259] [2023-12-15 18:01:03,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:03,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:03,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:03,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:03,447 INFO L87 Difference]: Start difference. First operand 861 states and 1579 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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) [2023-12-15 18:01:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:08,611 INFO L93 Difference]: Finished difference Result 3116 states and 5888 transitions. [2023-12-15 18:01:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:08,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2023-12-15 18:01:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:08,621 INFO L225 Difference]: With dead ends: 3116 [2023-12-15 18:01:08,624 INFO L226 Difference]: Without dead ends: 2363 [2023-12-15 18:01:08,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:01:08,627 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 2462 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5521 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 6621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:08,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2462 Valid, 848 Invalid, 6621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5521 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-15 18:01:08,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2023-12-15 18:01:08,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2363. [2023-12-15 18:01:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2361 states have (on average 1.5692503176620076) internal successors, (3705), 2362 states have internal predecessors, (3705), 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) [2023-12-15 18:01:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3705 transitions. [2023-12-15 18:01:08,694 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3705 transitions. Word has length 59 [2023-12-15 18:01:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:08,698 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3705 transitions. [2023-12-15 18:01:08,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 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) [2023-12-15 18:01:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3705 transitions. [2023-12-15 18:01:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 18:01:08,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:08,700 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] [2023-12-15 18:01:08,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:01:08,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:08,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1115950856, now seen corresponding path program 1 times [2023-12-15 18:01:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:08,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58001942] [2023-12-15 18:01:08,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:08,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:08,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58001942] [2023-12-15 18:01:08,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58001942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:08,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:08,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:08,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407125801] [2023-12-15 18:01:08,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:08,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:08,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:08,865 INFO L87 Difference]: Start difference. First operand 2363 states and 3705 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-12-15 18:01:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:09,193 INFO L93 Difference]: Finished difference Result 3105 states and 4909 transitions. [2023-12-15 18:01:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 18:01:09,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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 74 [2023-12-15 18:01:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:09,205 INFO L225 Difference]: With dead ends: 3105 [2023-12-15 18:01:09,205 INFO L226 Difference]: Without dead ends: 3052 [2023-12-15 18:01:09,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-15 18:01:09,207 INFO L413 NwaCegarLoop]: 1572 mSDtfsCounter, 11475 mSDsluCounter, 3464 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11475 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:09,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11475 Valid, 5036 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2023-12-15 18:01:09,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2414. [2023-12-15 18:01:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2412 states have (on average 1.570480928689884) internal successors, (3788), 2413 states have internal predecessors, (3788), 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) [2023-12-15 18:01:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3788 transitions. [2023-12-15 18:01:09,247 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3788 transitions. Word has length 74 [2023-12-15 18:01:09,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:09,248 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3788 transitions. [2023-12-15 18:01:09,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-12-15 18:01:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3788 transitions. [2023-12-15 18:01:09,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 18:01:09,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,249 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] [2023-12-15 18:01:09,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 18:01:09,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1436654440, now seen corresponding path program 1 times [2023-12-15 18:01:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863554358] [2023-12-15 18:01:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:09,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863554358] [2023-12-15 18:01:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863554358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:09,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:09,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318202793] [2023-12-15 18:01:09,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:09,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:09,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:09,302 INFO L87 Difference]: Start difference. First operand 2414 states and 3788 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2023-12-15 18:01:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:09,331 INFO L93 Difference]: Finished difference Result 2611 states and 4107 transitions. [2023-12-15 18:01:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2023-12-15 18:01:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:09,339 INFO L225 Difference]: With dead ends: 2611 [2023-12-15 18:01:09,339 INFO L226 Difference]: Without dead ends: 2507 [2023-12-15 18:01:09,340 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 [2023-12-15 18:01:09,340 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 1496 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:09,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1654 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2023-12-15 18:01:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2505. [2023-12-15 18:01:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2503 states have (on average 1.5717139432680782) internal successors, (3934), 2504 states have internal predecessors, (3934), 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) [2023-12-15 18:01:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3934 transitions. [2023-12-15 18:01:09,378 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3934 transitions. Word has length 76 [2023-12-15 18:01:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:09,378 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3934 transitions. [2023-12-15 18:01:09,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2023-12-15 18:01:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3934 transitions. [2023-12-15 18:01:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 18:01:09,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,379 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] [2023-12-15 18:01:09,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:01:09,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1434509488, now seen corresponding path program 1 times [2023-12-15 18:01:09,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676409667] [2023-12-15 18:01:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:09,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:09,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676409667] [2023-12-15 18:01:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676409667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930647394] [2023-12-15 18:01:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:09,603 INFO L87 Difference]: Start difference. First operand 2505 states and 3934 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 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) [2023-12-15 18:01:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:09,892 INFO L93 Difference]: Finished difference Result 2702 states and 4250 transitions. [2023-12-15 18:01:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:09,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 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 76 [2023-12-15 18:01:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:09,900 INFO L225 Difference]: With dead ends: 2702 [2023-12-15 18:01:09,900 INFO L226 Difference]: Without dead ends: 2507 [2023-12-15 18:01:09,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-12-15 18:01:09,901 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 9042 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9042 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:09,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9042 Valid, 2059 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2023-12-15 18:01:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2505. [2023-12-15 18:01:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2503 states have (on average 1.570914902117459) internal successors, (3932), 2504 states have internal predecessors, (3932), 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) [2023-12-15 18:01:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3932 transitions. [2023-12-15 18:01:09,939 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3932 transitions. Word has length 76 [2023-12-15 18:01:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:09,939 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3932 transitions. [2023-12-15 18:01:09,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 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) [2023-12-15 18:01:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3932 transitions. [2023-12-15 18:01:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-15 18:01:09,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,940 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] [2023-12-15 18:01:09,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:01:09,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1648504521, now seen corresponding path program 1 times [2023-12-15 18:01:09,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956001971] [2023-12-15 18:01:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956001971] [2023-12-15 18:01:10,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956001971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412829252] [2023-12-15 18:01:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:10,079 INFO L87 Difference]: Start difference. First operand 2505 states and 3932 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,112 INFO L93 Difference]: Finished difference Result 2513 states and 3941 transitions. [2023-12-15 18:01:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-15 18:01:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,119 INFO L225 Difference]: With dead ends: 2513 [2023-12-15 18:01:10,119 INFO L226 Difference]: Without dead ends: 2511 [2023-12-15 18:01:10,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:10,123 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4717 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2023-12-15 18:01:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2509. [2023-12-15 18:01:10,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2507 states have (on average 1.5696051057040288) internal successors, (3935), 2508 states have internal predecessors, (3935), 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) [2023-12-15 18:01:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3935 transitions. [2023-12-15 18:01:10,162 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3935 transitions. Word has length 77 [2023-12-15 18:01:10,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:10,162 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3935 transitions. [2023-12-15 18:01:10,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3935 transitions. [2023-12-15 18:01:10,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:10,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:10,165 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] [2023-12-15 18:01:10,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:01:10,165 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:10,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash -981819824, now seen corresponding path program 1 times [2023-12-15 18:01:10,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:10,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532681402] [2023-12-15 18:01:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532681402] [2023-12-15 18:01:10,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532681402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126870380] [2023-12-15 18:01:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:10,210 INFO L87 Difference]: Start difference. First operand 2509 states and 3935 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,238 INFO L93 Difference]: Finished difference Result 2719 states and 4268 transitions. [2023-12-15 18:01:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:10,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:10,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,246 INFO L225 Difference]: With dead ends: 2719 [2023-12-15 18:01:10,246 INFO L226 Difference]: Without dead ends: 2611 [2023-12-15 18:01:10,246 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 [2023-12-15 18:01:10,247 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1514 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1732 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2023-12-15 18:01:10,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2609. [2023-12-15 18:01:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2607 states have (on average 1.5696202531645569) internal successors, (4092), 2608 states have internal predecessors, (4092), 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) [2023-12-15 18:01:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 4092 transitions. [2023-12-15 18:01:10,295 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 4092 transitions. Word has length 78 [2023-12-15 18:01:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:10,295 INFO L495 AbstractCegarLoop]: Abstraction has 2609 states and 4092 transitions. [2023-12-15 18:01:10,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 4092 transitions. [2023-12-15 18:01:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:10,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:10,296 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] [2023-12-15 18:01:10,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:01:10,297 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:10,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -226435760, now seen corresponding path program 1 times [2023-12-15 18:01:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831439743] [2023-12-15 18:01:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831439743] [2023-12-15 18:01:10,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831439743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:10,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760738915] [2023-12-15 18:01:10,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:10,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:10,340 INFO L87 Difference]: Start difference. First operand 2609 states and 4092 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,373 INFO L93 Difference]: Finished difference Result 3179 states and 4992 transitions. [2023-12-15 18:01:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,383 INFO L225 Difference]: With dead ends: 3179 [2023-12-15 18:01:10,384 INFO L226 Difference]: Without dead ends: 2882 [2023-12-15 18:01:10,385 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 [2023-12-15 18:01:10,386 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 1512 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2023-12-15 18:01:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2880. [2023-12-15 18:01:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2878 states have (on average 1.5684503127171647) internal successors, (4514), 2879 states have internal predecessors, (4514), 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) [2023-12-15 18:01:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 4514 transitions. [2023-12-15 18:01:10,435 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 4514 transitions. Word has length 78 [2023-12-15 18:01:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:10,435 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 4514 transitions. [2023-12-15 18:01:10,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 4514 transitions. [2023-12-15 18:01:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:10,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:10,436 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] [2023-12-15 18:01:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:01:10,437 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:10,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash -636822448, now seen corresponding path program 1 times [2023-12-15 18:01:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:10,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581415063] [2023-12-15 18:01:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:10,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581415063] [2023-12-15 18:01:10,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581415063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402657985] [2023-12-15 18:01:10,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:10,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:10,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:10,493 INFO L87 Difference]: Start difference. First operand 2880 states and 4514 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,537 INFO L93 Difference]: Finished difference Result 3968 states and 6216 transitions. [2023-12-15 18:01:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:10,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,559 INFO L225 Difference]: With dead ends: 3968 [2023-12-15 18:01:10,560 INFO L226 Difference]: Without dead ends: 3400 [2023-12-15 18:01:10,562 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 [2023-12-15 18:01:10,562 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1510 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2023-12-15 18:01:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3398. [2023-12-15 18:01:10,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3396 states have (on average 1.5636042402826855) internal successors, (5310), 3397 states have internal predecessors, (5310), 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) [2023-12-15 18:01:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 5310 transitions. [2023-12-15 18:01:10,640 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 5310 transitions. Word has length 78 [2023-12-15 18:01:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 3398 states and 5310 transitions. [2023-12-15 18:01:10,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 5310 transitions. [2023-12-15 18:01:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:10,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:10,642 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] [2023-12-15 18:01:10,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 18:01:10,642 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:10,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash -905405616, now seen corresponding path program 1 times [2023-12-15 18:01:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:10,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090308164] [2023-12-15 18:01:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090308164] [2023-12-15 18:01:10,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090308164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965863080] [2023-12-15 18:01:10,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:10,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:10,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:10,685 INFO L87 Difference]: Start difference. First operand 3398 states and 5310 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,737 INFO L93 Difference]: Finished difference Result 5474 states and 8520 transitions. [2023-12-15 18:01:10,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:10,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:10,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,744 INFO L225 Difference]: With dead ends: 5474 [2023-12-15 18:01:10,744 INFO L226 Difference]: Without dead ends: 4388 [2023-12-15 18:01:10,746 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 [2023-12-15 18:01:10,746 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1508 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1742 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2023-12-15 18:01:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4386. [2023-12-15 18:01:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 1.552463503649635) internal successors, (6806), 4385 states have internal predecessors, (6806), 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) [2023-12-15 18:01:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 6806 transitions. [2023-12-15 18:01:10,827 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 6806 transitions. Word has length 78 [2023-12-15 18:01:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:10,828 INFO L495 AbstractCegarLoop]: Abstraction has 4386 states and 6806 transitions. [2023-12-15 18:01:10,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 6806 transitions. [2023-12-15 18:01:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:10,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:10,828 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] [2023-12-15 18:01:10,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 18:01:10,829 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:10,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:10,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1491117744, now seen corresponding path program 1 times [2023-12-15 18:01:10,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103456230] [2023-12-15 18:01:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:10,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103456230] [2023-12-15 18:01:10,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103456230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348309891] [2023-12-15 18:01:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:10,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:10,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:10,873 INFO L87 Difference]: Start difference. First operand 4386 states and 6806 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:10,984 INFO L93 Difference]: Finished difference Result 8342 states and 12840 transitions. [2023-12-15 18:01:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:10,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:10,993 INFO L225 Difference]: With dead ends: 8342 [2023-12-15 18:01:10,993 INFO L226 Difference]: Without dead ends: 6268 [2023-12-15 18:01:10,995 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 [2023-12-15 18:01:10,995 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1504 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:10,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:10,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2023-12-15 18:01:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 6266. [2023-12-15 18:01:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6266 states, 6264 states have (on average 1.5335249042145593) internal successors, (9606), 6265 states have internal predecessors, (9606), 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) [2023-12-15 18:01:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6266 states to 6266 states and 9606 transitions. [2023-12-15 18:01:11,106 INFO L78 Accepts]: Start accepts. Automaton has 6266 states and 9606 transitions. Word has length 78 [2023-12-15 18:01:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:11,107 INFO L495 AbstractCegarLoop]: Abstraction has 6266 states and 9606 transitions. [2023-12-15 18:01:11,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6266 states and 9606 transitions. [2023-12-15 18:01:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:11,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:11,107 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] [2023-12-15 18:01:11,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 18:01:11,108 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:11,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:11,108 INFO L85 PathProgramCache]: Analyzing trace with hash -602384304, now seen corresponding path program 1 times [2023-12-15 18:01:11,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:11,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529627846] [2023-12-15 18:01:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:11,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:11,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:11,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529627846] [2023-12-15 18:01:11,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529627846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:11,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:11,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190667851] [2023-12-15 18:01:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:11,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:11,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:11,144 INFO L87 Difference]: Start difference. First operand 6266 states and 9606 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:11,264 INFO L93 Difference]: Finished difference Result 13790 states and 20904 transitions. [2023-12-15 18:01:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:11,277 INFO L225 Difference]: With dead ends: 13790 [2023-12-15 18:01:11,278 INFO L226 Difference]: Without dead ends: 9836 [2023-12-15 18:01:11,283 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 [2023-12-15 18:01:11,283 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 1502 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:11,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9836 states. [2023-12-15 18:01:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9836 to 9834. [2023-12-15 18:01:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9834 states, 9832 states have (on average 1.507526444263629) internal successors, (14822), 9833 states have internal predecessors, (14822), 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) [2023-12-15 18:01:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9834 states to 9834 states and 14822 transitions. [2023-12-15 18:01:11,481 INFO L78 Accepts]: Start accepts. Automaton has 9834 states and 14822 transitions. Word has length 78 [2023-12-15 18:01:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:11,481 INFO L495 AbstractCegarLoop]: Abstraction has 9834 states and 14822 transitions. [2023-12-15 18:01:11,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:11,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9834 states and 14822 transitions. [2023-12-15 18:01:11,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 18:01:11,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:11,482 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] [2023-12-15 18:01:11,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:01:11,482 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:11,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:11,483 INFO L85 PathProgramCache]: Analyzing trace with hash -865461680, now seen corresponding path program 1 times [2023-12-15 18:01:11,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:11,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69673398] [2023-12-15 18:01:11,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:11,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:11,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:11,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69673398] [2023-12-15 18:01:11,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69673398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:11,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:11,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624708327] [2023-12-15 18:01:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:11,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:11,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:11,521 INFO L87 Difference]: Start difference. First operand 9834 states and 14822 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:11,788 INFO L93 Difference]: Finished difference Result 24110 states and 35880 transitions. [2023-12-15 18:01:11,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:11,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-12-15 18:01:11,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:11,812 INFO L225 Difference]: With dead ends: 24110 [2023-12-15 18:01:11,812 INFO L226 Difference]: Without dead ends: 16588 [2023-12-15 18:01:11,820 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 [2023-12-15 18:01:11,820 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 1506 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:11,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1744 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2023-12-15 18:01:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 16586. [2023-12-15 18:01:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16586 states, 16584 states have (on average 1.4764833574529668) internal successors, (24486), 16585 states have internal predecessors, (24486), 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) [2023-12-15 18:01:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16586 states to 16586 states and 24486 transitions. [2023-12-15 18:01:12,170 INFO L78 Accepts]: Start accepts. Automaton has 16586 states and 24486 transitions. Word has length 78 [2023-12-15 18:01:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:12,170 INFO L495 AbstractCegarLoop]: Abstraction has 16586 states and 24486 transitions. [2023-12-15 18:01:12,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:01:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 16586 states and 24486 transitions. [2023-12-15 18:01:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:12,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:12,174 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:12,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 18:01:12,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:12,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:12,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1758605507, now seen corresponding path program 1 times [2023-12-15 18:01:12,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664093161] [2023-12-15 18:01:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 18:01:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:12,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664093161] [2023-12-15 18:01:12,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664093161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:12,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:12,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67810617] [2023-12-15 18:01:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:12,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:12,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:12,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:12,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:12,347 INFO L87 Difference]: Start difference. First operand 16586 states and 24486 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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) [2023-12-15 18:01:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:14,076 INFO L93 Difference]: Finished difference Result 115098 states and 168430 transitions. [2023-12-15 18:01:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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 100 [2023-12-15 18:01:14,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:14,281 INFO L225 Difference]: With dead ends: 115098 [2023-12-15 18:01:14,282 INFO L226 Difference]: Without dead ends: 105112 [2023-12-15 18:01:14,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:14,314 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 9845 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9845 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:14,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9845 Valid, 4605 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105112 states. [2023-12-15 18:01:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105112 to 28746. [2023-12-15 18:01:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28746 states, 28744 states have (on average 1.4641664347342054) internal successors, (42086), 28745 states have internal predecessors, (42086), 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) [2023-12-15 18:01:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28746 states to 28746 states and 42086 transitions. [2023-12-15 18:01:15,475 INFO L78 Accepts]: Start accepts. Automaton has 28746 states and 42086 transitions. Word has length 100 [2023-12-15 18:01:15,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:15,475 INFO L495 AbstractCegarLoop]: Abstraction has 28746 states and 42086 transitions. [2023-12-15 18:01:15,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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) [2023-12-15 18:01:15,475 INFO L276 IsEmpty]: Start isEmpty. Operand 28746 states and 42086 transitions. [2023-12-15 18:01:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:15,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:15,479 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:15,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 18:01:15,480 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:15,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1780977725, now seen corresponding path program 1 times [2023-12-15 18:01:15,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:15,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752069403] [2023-12-15 18:01:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-15 18:01:15,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:15,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752069403] [2023-12-15 18:01:15,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752069403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:15,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:15,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:15,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685657221] [2023-12-15 18:01:15,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:15,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:15,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:15,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:15,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:15,634 INFO L87 Difference]: Start difference. First operand 28746 states and 42086 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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) [2023-12-15 18:01:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:18,094 INFO L93 Difference]: Finished difference Result 129370 states and 189166 transitions. [2023-12-15 18:01:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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 100 [2023-12-15 18:01:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:18,267 INFO L225 Difference]: With dead ends: 129370 [2023-12-15 18:01:18,267 INFO L226 Difference]: Without dead ends: 115096 [2023-12-15 18:01:18,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:18,301 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 9845 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9845 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:18,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9845 Valid, 4598 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115096 states. [2023-12-15 18:01:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115096 to 48010. [2023-12-15 18:01:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48010 states, 48008 states have (on average 1.4565489085152474) internal successors, (69926), 48009 states have internal predecessors, (69926), 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) [2023-12-15 18:01:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48010 states to 48010 states and 69926 transitions. [2023-12-15 18:01:20,168 INFO L78 Accepts]: Start accepts. Automaton has 48010 states and 69926 transitions. Word has length 100 [2023-12-15 18:01:20,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:20,169 INFO L495 AbstractCegarLoop]: Abstraction has 48010 states and 69926 transitions. [2023-12-15 18:01:20,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 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) [2023-12-15 18:01:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 48010 states and 69926 transitions. [2023-12-15 18:01:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:20,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:20,175 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:20,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 18:01:20,175 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:20,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2103602883, now seen corresponding path program 1 times [2023-12-15 18:01:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:20,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340251714] [2023-12-15 18:01:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:20,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:01:20,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340251714] [2023-12-15 18:01:20,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340251714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:20,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:20,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:20,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100971910] [2023-12-15 18:01:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:20,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:20,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:20,333 INFO L87 Difference]: Start difference. First operand 48010 states and 69926 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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) [2023-12-15 18:01:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:23,230 INFO L93 Difference]: Finished difference Result 143642 states and 209838 transitions. [2023-12-15 18:01:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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 100 [2023-12-15 18:01:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:23,422 INFO L225 Difference]: With dead ends: 143642 [2023-12-15 18:01:23,422 INFO L226 Difference]: Without dead ends: 129368 [2023-12-15 18:01:23,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:23,506 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 9868 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4510 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:23,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4510 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129368 states. [2023-12-15 18:01:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129368 to 62282. [2023-12-15 18:01:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62282 states, 62280 states have (on average 1.4546885035324342) internal successors, (90598), 62281 states have internal predecessors, (90598), 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) [2023-12-15 18:01:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62282 states to 62282 states and 90598 transitions. [2023-12-15 18:01:26,050 INFO L78 Accepts]: Start accepts. Automaton has 62282 states and 90598 transitions. Word has length 100 [2023-12-15 18:01:26,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:26,051 INFO L495 AbstractCegarLoop]: Abstraction has 62282 states and 90598 transitions. [2023-12-15 18:01:26,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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) [2023-12-15 18:01:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 62282 states and 90598 transitions. [2023-12-15 18:01:26,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:26,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:26,057 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:26,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 18:01:26,057 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:26,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1835019715, now seen corresponding path program 1 times [2023-12-15 18:01:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:26,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378782819] [2023-12-15 18:01:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-15 18:01:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378782819] [2023-12-15 18:01:26,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378782819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:26,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:26,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:26,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577336983] [2023-12-15 18:01:26,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:26,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:26,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:26,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:26,193 INFO L87 Difference]: Start difference. First operand 62282 states and 90598 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2023-12-15 18:01:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:29,606 INFO L93 Difference]: Finished difference Result 157914 states and 230510 transitions. [2023-12-15 18:01:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:29,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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 100 [2023-12-15 18:01:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:29,780 INFO L225 Difference]: With dead ends: 157914 [2023-12-15 18:01:29,780 INFO L226 Difference]: Without dead ends: 143640 [2023-12-15 18:01:29,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:29,805 INFO L413 NwaCegarLoop]: 1655 mSDtfsCounter, 9955 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9955 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:29,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9955 Valid, 4453 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143640 states. [2023-12-15 18:01:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143640 to 76554. [2023-12-15 18:01:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76554 states, 76552 states have (on average 1.45352178911067) internal successors, (111270), 76553 states have internal predecessors, (111270), 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) [2023-12-15 18:01:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76554 states to 76554 states and 111270 transitions. [2023-12-15 18:01:32,559 INFO L78 Accepts]: Start accepts. Automaton has 76554 states and 111270 transitions. Word has length 100 [2023-12-15 18:01:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:32,559 INFO L495 AbstractCegarLoop]: Abstraction has 76554 states and 111270 transitions. [2023-12-15 18:01:32,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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) [2023-12-15 18:01:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 76554 states and 111270 transitions. [2023-12-15 18:01:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:32,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:32,566 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:32,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 18:01:32,567 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:32,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1249307587, now seen corresponding path program 1 times [2023-12-15 18:01:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112874544] [2023-12-15 18:01:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-15 18:01:32,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:32,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112874544] [2023-12-15 18:01:32,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112874544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:32,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:32,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:32,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934235193] [2023-12-15 18:01:32,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:32,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:32,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:32,715 INFO L87 Difference]: Start difference. First operand 76554 states and 111270 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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) [2023-12-15 18:01:36,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:36,653 INFO L93 Difference]: Finished difference Result 172186 states and 251182 transitions. [2023-12-15 18:01:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:36,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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 100 [2023-12-15 18:01:36,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:36,870 INFO L225 Difference]: With dead ends: 172186 [2023-12-15 18:01:36,870 INFO L226 Difference]: Without dead ends: 157912 [2023-12-15 18:01:36,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:36,912 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 10036 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10036 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:36,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10036 Valid, 4511 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157912 states. [2023-12-15 18:01:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157912 to 90826. [2023-12-15 18:01:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90826 states, 90824 states have (on average 1.4527217475557122) internal successors, (131942), 90825 states have internal predecessors, (131942), 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) [2023-12-15 18:01:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90826 states to 90826 states and 131942 transitions. [2023-12-15 18:01:40,331 INFO L78 Accepts]: Start accepts. Automaton has 90826 states and 131942 transitions. Word has length 100 [2023-12-15 18:01:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:40,331 INFO L495 AbstractCegarLoop]: Abstraction has 90826 states and 131942 transitions. [2023-12-15 18:01:40,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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) [2023-12-15 18:01:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 90826 states and 131942 transitions. [2023-12-15 18:01:40,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:40,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:40,338 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:40,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 18:01:40,339 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:40,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2138041027, now seen corresponding path program 1 times [2023-12-15 18:01:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:40,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639405707] [2023-12-15 18:01:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:40,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 18:01:40,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:40,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639405707] [2023-12-15 18:01:40,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639405707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:40,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:40,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:40,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743987574] [2023-12-15 18:01:40,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:40,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:40,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:40,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:40,494 INFO L87 Difference]: Start difference. First operand 90826 states and 131942 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2023-12-15 18:01:44,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:44,843 INFO L93 Difference]: Finished difference Result 186458 states and 271854 transitions. [2023-12-15 18:01:44,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:44,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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 100 [2023-12-15 18:01:44,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:45,092 INFO L225 Difference]: With dead ends: 186458 [2023-12-15 18:01:45,092 INFO L226 Difference]: Without dead ends: 172184 [2023-12-15 18:01:45,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:45,145 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 9907 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9907 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:45,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9907 Valid, 4539 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:45,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172184 states. [2023-12-15 18:01:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172184 to 105098. [2023-12-15 18:01:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105098 states, 105096 states have (on average 1.4521389967268021) internal successors, (152614), 105097 states have internal predecessors, (152614), 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) [2023-12-15 18:01:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105098 states to 105098 states and 152614 transitions. [2023-12-15 18:01:49,181 INFO L78 Accepts]: Start accepts. Automaton has 105098 states and 152614 transitions. Word has length 100 [2023-12-15 18:01:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:49,181 INFO L495 AbstractCegarLoop]: Abstraction has 105098 states and 152614 transitions. [2023-12-15 18:01:49,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2023-12-15 18:01:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 105098 states and 152614 transitions. [2023-12-15 18:01:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 18:01:49,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:49,187 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 18:01:49,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 18:01:49,188 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:49,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:49,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1874963651, now seen corresponding path program 1 times [2023-12-15 18:01:49,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:49,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036293859] [2023-12-15 18:01:49,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:49,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:49,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 18:01:49,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:49,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036293859] [2023-12-15 18:01:49,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036293859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:49,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:49,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 18:01:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755837584] [2023-12-15 18:01:49,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:49,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 18:01:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:49,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 18:01:49,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 18:01:49,344 INFO L87 Difference]: Start difference. First operand 105098 states and 152614 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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) [2023-12-15 18:01:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:54,188 INFO L93 Difference]: Finished difference Result 200730 states and 292526 transitions. [2023-12-15 18:01:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 18:01:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 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 100 [2023-12-15 18:01:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:54,606 INFO L225 Difference]: With dead ends: 200730 [2023-12-15 18:01:54,606 INFO L226 Difference]: Without dead ends: 186456 [2023-12-15 18:01:54,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 18:01:54,655 INFO L413 NwaCegarLoop]: 1652 mSDtfsCounter, 9793 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9793 SdHoareTripleChecker+Valid, 4695 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:54,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9793 Valid, 4695 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186456 states. Received shutdown request... [2023-12-15 18:01:57,720 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 18:01:58,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 18:01:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186456 to 119370. [2023-12-15 18:01:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119370 states, 119368 states have (on average 1.4516955968098653) internal successors, (173286), 119369 states have internal predecessors, (173286), 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) [2023-12-15 18:01:58,940 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 18:01:58,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 18:01:58,944 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 18:01:58,946 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 18:01:58,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:58,951 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:01:58,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:01:58 BoogieIcfgContainer [2023-12-15 18:01:58,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:01:58,954 INFO L158 Benchmark]: Toolchain (without parser) took 61944.13ms. Allocated memory was 183.5MB in the beginning and 6.1GB in the end (delta: 5.9GB). Free memory was 112.6MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-15 18:01:58,954 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:01:58,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1275.66ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 112.3MB in the beginning and 115.2MB in the end (delta: -2.8MB). Peak memory consumption was 60.4MB. Max. memory is 8.0GB. [2023-12-15 18:01:58,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 290.81ms. Allocated memory is still 245.4MB. Free memory was 115.2MB in the beginning and 144.0MB in the end (delta: -28.8MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2023-12-15 18:01:58,958 INFO L158 Benchmark]: Boogie Preprocessor took 457.73ms. Allocated memory was 245.4MB in the beginning and 423.6MB in the end (delta: 178.3MB). Free memory was 144.0MB in the beginning and 305.6MB in the end (delta: -161.6MB). Peak memory consumption was 110.5MB. Max. memory is 8.0GB. [2023-12-15 18:01:58,958 INFO L158 Benchmark]: RCFGBuilder took 3271.08ms. Allocated memory was 423.6MB in the beginning and 631.2MB in the end (delta: 207.6MB). Free memory was 305.6MB in the beginning and 320.2MB in the end (delta: -14.6MB). Peak memory consumption was 197.2MB. Max. memory is 8.0GB. [2023-12-15 18:01:58,959 INFO L158 Benchmark]: TraceAbstraction took 56642.34ms. Allocated memory was 631.2MB in the beginning and 6.1GB in the end (delta: 5.4GB). Free memory was 319.6MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-15 18:01:58,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1275.66ms. Allocated memory was 183.5MB in the beginning and 245.4MB in the end (delta: 61.9MB). Free memory was 112.3MB in the beginning and 115.2MB in the end (delta: -2.8MB). Peak memory consumption was 60.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 290.81ms. Allocated memory is still 245.4MB. Free memory was 115.2MB in the beginning and 144.0MB in the end (delta: -28.8MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 457.73ms. Allocated memory was 245.4MB in the beginning and 423.6MB in the end (delta: 178.3MB). Free memory was 144.0MB in the beginning and 305.6MB in the end (delta: -161.6MB). Peak memory consumption was 110.5MB. Max. memory is 8.0GB. * RCFGBuilder took 3271.08ms. Allocated memory was 423.6MB in the beginning and 631.2MB in the end (delta: 207.6MB). Free memory was 305.6MB in the beginning and 320.2MB in the end (delta: -14.6MB). Peak memory consumption was 197.2MB. Max. memory is 8.0GB. * TraceAbstraction took 56642.34ms. Allocated memory was 631.2MB in the beginning and 6.1GB in the end (delta: 5.4GB). Free memory was 319.6MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 594]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 594). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 789]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 789). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 865 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 21, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104281 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104281 mSDsluCounter, 64851 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31402 mSDsCounter, 1230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7713 IncrementalHoareTripleChecker+Invalid, 8943 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1230 mSolverCounterUnsat, 33449 mSDtfsCounter, 7713 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105098occurred in iteration=20, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 412454 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1637 ConstructedInterpolants, 0 QuantifiedInterpolants, 11192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 126/126 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown