/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:18:45,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:18:45,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:18:45,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:18:45,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:18:45,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:18:45,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:18:45,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:18:45,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:18:45,686 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:18:45,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:18:45,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:18:45,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:18:45,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:18:45,688 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:18:45,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:18:45,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:18:45,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:18:45,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:18:45,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:18:45,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:18:45,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:18:45,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:18:45,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:18:45,697 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:18:45,697 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:18:45,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:18:45,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:18:45,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:18:45,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:18:45,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:18:45,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:18:45,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:18:45,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:18:45,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:18:45,701 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:18:45,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:18:45,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:18:45,702 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:18:45,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:18:45,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:18:45,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:18:45,966 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:18:45,966 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:18:45,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-16 06:18:47,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:18:47,605 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:18:47,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-16 06:18:47,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6924fed9/a320d09b15c641f393a28386660f734b/FLAGda8857687 [2023-12-16 06:18:47,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6924fed9/a320d09b15c641f393a28386660f734b [2023-12-16 06:18:47,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:18:47,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:18:47,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:18:47,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:18:47,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:18:47,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:18:47" (1/1) ... [2023-12-16 06:18:47,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7480805a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:47, skipping insertion in model container [2023-12-16 06:18:47,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:18:47" (1/1) ... [2023-12-16 06:18:47,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:18:47,972 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-12-16 06:18:48,009 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-12-16 06:18:48,021 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-12-16 06:18:48,027 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-12-16 06:18:48,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:18:48,283 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:18:48,357 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-12-16 06:18:48,384 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-12-16 06:18:48,391 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-12-16 06:18:48,394 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-12-16 06:18:48,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:18:48,512 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:18:48,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48 WrapperNode [2023-12-16 06:18:48,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:18:48,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:18:48,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:18:48,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:18:48,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,650 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2841 [2023-12-16 06:18:48,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:18:48,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:18:48,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:18:48,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:18:48,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,680 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,743 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 06:18:48,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:18:48,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:18:48,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:18:48,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:18:48,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:18:48,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:18:48,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:18:48,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:18:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:18:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:18:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:18:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:18:49,122 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:18:49,124 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:18:50,500 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:18:50,558 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:18:50,558 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:18:50,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:18:50 BoogieIcfgContainer [2023-12-16 06:18:50,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:18:50,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:18:50,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:18:50,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:18:50,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:18:47" (1/3) ... [2023-12-16 06:18:50,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28668d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:18:50, skipping insertion in model container [2023-12-16 06:18:50,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (2/3) ... [2023-12-16 06:18:50,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28668d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:18:50, skipping insertion in model container [2023-12-16 06:18:50,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:18:50" (3/3) ... [2023-12-16 06:18:50,568 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-16 06:18:50,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:18:50,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-16 06:18:50,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:18:50,656 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;@281e5f9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:18:50,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-16 06:18:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 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) [2023-12-16 06:18:50,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 06:18:50,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:50,693 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] [2023-12-16 06:18:50,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:50,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1875598250, now seen corresponding path program 1 times [2023-12-16 06:18:50,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:50,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883788438] [2023-12-16 06:18:50,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:50,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883788438] [2023-12-16 06:18:51,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883788438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:51,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264743270] [2023-12-16 06:18:51,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:51,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:51,128 INFO L87 Difference]: Start difference. First operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 06:18:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,290 INFO L93 Difference]: Finished difference Result 721 states and 1267 transitions. [2023-12-16 06:18:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:51,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-16 06:18:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,317 INFO L225 Difference]: With dead ends: 721 [2023-12-16 06:18:51,317 INFO L226 Difference]: Without dead ends: 570 [2023-12-16 06:18:51,327 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 [2023-12-16 06:18:51,332 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 437 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-16 06:18:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 564. [2023-12-16 06:18:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 560 states have (on average 1.3446428571428573) internal successors, (753), 563 states have internal predecessors, (753), 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) [2023-12-16 06:18:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 753 transitions. [2023-12-16 06:18:51,412 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 753 transitions. Word has length 50 [2023-12-16 06:18:51,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,413 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 753 transitions. [2023-12-16 06:18:51,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 06:18:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 753 transitions. [2023-12-16 06:18:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 06:18:51,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,415 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] [2023-12-16 06:18:51,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:18:51,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:51,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2061015356, now seen corresponding path program 1 times [2023-12-16 06:18:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683006029] [2023-12-16 06:18:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683006029] [2023-12-16 06:18:51,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683006029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:51,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559720373] [2023-12-16 06:18:51,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:51,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:51,587 INFO L87 Difference]: Start difference. First operand 564 states and 753 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 06:18:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,660 INFO L93 Difference]: Finished difference Result 993 states and 1378 transitions. [2023-12-16 06:18:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-16 06:18:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,665 INFO L225 Difference]: With dead ends: 993 [2023-12-16 06:18:51,665 INFO L226 Difference]: Without dead ends: 780 [2023-12-16 06:18:51,668 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 [2023-12-16 06:18:51,669 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1015 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:51,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-12-16 06:18:51,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 773. [2023-12-16 06:18:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 769 states have (on average 1.3719115734720415) internal successors, (1055), 772 states have internal predecessors, (1055), 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) [2023-12-16 06:18:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1055 transitions. [2023-12-16 06:18:51,690 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1055 transitions. Word has length 50 [2023-12-16 06:18:51,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,691 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1055 transitions. [2023-12-16 06:18:51,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 06:18:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1055 transitions. [2023-12-16 06:18:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-16 06:18:51,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,693 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] [2023-12-16 06:18:51,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:18:51,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:51,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2089668058, now seen corresponding path program 1 times [2023-12-16 06:18:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678976405] [2023-12-16 06:18:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678976405] [2023-12-16 06:18:51,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678976405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:51,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296918902] [2023-12-16 06:18:51,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:51,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:51,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:51,877 INFO L87 Difference]: Start difference. First operand 773 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-12-16 06:18:52,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:52,373 INFO L93 Difference]: Finished difference Result 1719 states and 2418 transitions. [2023-12-16 06:18:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:52,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2023-12-16 06:18:52,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:52,380 INFO L225 Difference]: With dead ends: 1719 [2023-12-16 06:18:52,381 INFO L226 Difference]: Without dead ends: 1062 [2023-12-16 06:18:52,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:52,386 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1742 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:52,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 390 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:18:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-12-16 06:18:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1056. [2023-12-16 06:18:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1052 states have (on average 1.4077946768060836) internal successors, (1481), 1055 states have internal predecessors, (1481), 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) [2023-12-16 06:18:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1481 transitions. [2023-12-16 06:18:52,419 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1481 transitions. Word has length 50 [2023-12-16 06:18:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:52,420 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 1481 transitions. [2023-12-16 06:18:52,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-12-16 06:18:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1481 transitions. [2023-12-16 06:18:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 06:18:52,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:52,424 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] [2023-12-16 06:18:52,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:18:52,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:52,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:52,425 INFO L85 PathProgramCache]: Analyzing trace with hash -941949597, now seen corresponding path program 1 times [2023-12-16 06:18:52,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:52,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85342394] [2023-12-16 06:18:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:52,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:52,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:52,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85342394] [2023-12-16 06:18:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85342394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913118088] [2023-12-16 06:18:52,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:52,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:52,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:52,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:52,512 INFO L87 Difference]: Start difference. First operand 1056 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 06:18:52,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:52,559 INFO L93 Difference]: Finished difference Result 2560 states and 3636 transitions. [2023-12-16 06:18:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:52,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-12-16 06:18:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:52,566 INFO L225 Difference]: With dead ends: 2560 [2023-12-16 06:18:52,566 INFO L226 Difference]: Without dead ends: 1729 [2023-12-16 06:18:52,568 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 [2023-12-16 06:18:52,570 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 364 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:52,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 931 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2023-12-16 06:18:52,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1715. [2023-12-16 06:18:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1711 states have (on average 1.3921683226183519) internal successors, (2382), 1714 states have internal predecessors, (2382), 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) [2023-12-16 06:18:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2382 transitions. [2023-12-16 06:18:52,611 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2382 transitions. Word has length 51 [2023-12-16 06:18:52,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:52,612 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2382 transitions. [2023-12-16 06:18:52,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 06:18:52,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2382 transitions. [2023-12-16 06:18:52,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-16 06:18:52,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:52,615 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] [2023-12-16 06:18:52,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:18:52,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:52,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:52,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1880466014, now seen corresponding path program 1 times [2023-12-16 06:18:52,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558582278] [2023-12-16 06:18:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:52,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:52,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558582278] [2023-12-16 06:18:52,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558582278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:52,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:52,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:52,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055843398] [2023-12-16 06:18:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:52,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:52,762 INFO L87 Difference]: Start difference. First operand 1715 states and 2382 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 06:18:53,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:53,009 INFO L93 Difference]: Finished difference Result 3784 states and 5311 transitions. [2023-12-16 06:18:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:53,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2023-12-16 06:18:53,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:53,018 INFO L225 Difference]: With dead ends: 3784 [2023-12-16 06:18:53,018 INFO L226 Difference]: Without dead ends: 2240 [2023-12-16 06:18:53,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:53,022 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1537 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:53,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 365 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:18:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-12-16 06:18:53,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2226. [2023-12-16 06:18:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2222 states have (on average 1.396939693969397) internal successors, (3104), 2225 states have internal predecessors, (3104), 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) [2023-12-16 06:18:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3104 transitions. [2023-12-16 06:18:53,107 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3104 transitions. Word has length 51 [2023-12-16 06:18:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:53,108 INFO L495 AbstractCegarLoop]: Abstraction has 2226 states and 3104 transitions. [2023-12-16 06:18:53,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 06:18:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3104 transitions. [2023-12-16 06:18:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 06:18:53,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:53,111 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] [2023-12-16 06:18:53,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:18:53,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:53,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1402460387, now seen corresponding path program 1 times [2023-12-16 06:18:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5842085] [2023-12-16 06:18:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:53,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:53,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:53,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5842085] [2023-12-16 06:18:53,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5842085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:53,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:53,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:53,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137784097] [2023-12-16 06:18:53,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:53,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:53,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:53,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:53,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:53,209 INFO L87 Difference]: Start difference. First operand 2226 states and 3104 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-12-16 06:18:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:53,447 INFO L93 Difference]: Finished difference Result 5039 states and 7065 transitions. [2023-12-16 06:18:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2023-12-16 06:18:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:53,461 INFO L225 Difference]: With dead ends: 5039 [2023-12-16 06:18:53,462 INFO L226 Difference]: Without dead ends: 2984 [2023-12-16 06:18:53,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:53,469 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1386 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:53,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 333 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:18:53,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2023-12-16 06:18:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2965. [2023-12-16 06:18:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2961 states have (on average 1.3904086457277947) internal successors, (4117), 2964 states have internal predecessors, (4117), 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) [2023-12-16 06:18:53,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4117 transitions. [2023-12-16 06:18:53,538 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4117 transitions. Word has length 52 [2023-12-16 06:18:53,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:53,538 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 4117 transitions. [2023-12-16 06:18:53,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-12-16 06:18:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4117 transitions. [2023-12-16 06:18:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:53,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:53,541 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] [2023-12-16 06:18:53,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:18:53,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:53,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash -78307905, now seen corresponding path program 1 times [2023-12-16 06:18:53,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:53,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614590161] [2023-12-16 06:18:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:53,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:53,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614590161] [2023-12-16 06:18:53,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614590161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:53,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902680014] [2023-12-16 06:18:53,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:53,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:53,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:53,720 INFO L87 Difference]: Start difference. First operand 2965 states and 4117 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:54,201 INFO L93 Difference]: Finished difference Result 9647 states and 13610 transitions. [2023-12-16 06:18:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2023-12-16 06:18:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:54,231 INFO L225 Difference]: With dead ends: 9647 [2023-12-16 06:18:54,232 INFO L226 Difference]: Without dead ends: 8326 [2023-12-16 06:18:54,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:54,237 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 2823 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:54,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 597 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:18:54,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8326 states. [2023-12-16 06:18:54,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8326 to 2979. [2023-12-16 06:18:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2975 states have (on average 1.3899159663865546) internal successors, (4135), 2978 states have internal predecessors, (4135), 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) [2023-12-16 06:18:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4135 transitions. [2023-12-16 06:18:54,379 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4135 transitions. Word has length 53 [2023-12-16 06:18:54,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:54,379 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4135 transitions. [2023-12-16 06:18:54,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:54,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4135 transitions. [2023-12-16 06:18:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:54,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:54,382 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] [2023-12-16 06:18:54,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:18:54,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:54,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319552, now seen corresponding path program 1 times [2023-12-16 06:18:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082492284] [2023-12-16 06:18:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:54,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082492284] [2023-12-16 06:18:54,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082492284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:54,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:54,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:54,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981368128] [2023-12-16 06:18:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:54,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:54,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:54,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:54,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:54,523 INFO L87 Difference]: Start difference. First operand 2979 states and 4135 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:55,088 INFO L93 Difference]: Finished difference Result 10677 states and 15138 transitions. [2023-12-16 06:18:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2023-12-16 06:18:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:55,134 INFO L225 Difference]: With dead ends: 10677 [2023-12-16 06:18:55,135 INFO L226 Difference]: Without dead ends: 9559 [2023-12-16 06:18:55,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:55,143 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2129 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:55,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 755 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:18:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2023-12-16 06:18:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 3001. [2023-12-16 06:18:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2997 states have (on average 1.3900567233900567) internal successors, (4166), 3000 states have internal predecessors, (4166), 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) [2023-12-16 06:18:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4166 transitions. [2023-12-16 06:18:55,277 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4166 transitions. Word has length 53 [2023-12-16 06:18:55,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:55,278 INFO L495 AbstractCegarLoop]: Abstraction has 3001 states and 4166 transitions. [2023-12-16 06:18:55,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:55,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4166 transitions. [2023-12-16 06:18:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:55,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:55,281 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] [2023-12-16 06:18:55,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:18:55,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:55,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:55,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1821294495, now seen corresponding path program 1 times [2023-12-16 06:18:55,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:55,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101984246] [2023-12-16 06:18:55,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:55,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:55,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:55,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101984246] [2023-12-16 06:18:55,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101984246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:55,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:55,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:55,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169930365] [2023-12-16 06:18:55,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:55,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:55,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:55,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:55,414 INFO L87 Difference]: Start difference. First operand 3001 states and 4166 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:55,957 INFO L93 Difference]: Finished difference Result 12682 states and 17894 transitions. [2023-12-16 06:18:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2023-12-16 06:18:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:55,991 INFO L225 Difference]: With dead ends: 12682 [2023-12-16 06:18:55,992 INFO L226 Difference]: Without dead ends: 11714 [2023-12-16 06:18:56,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:56,002 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3300 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:56,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 653 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:18:56,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2023-12-16 06:18:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 3035. [2023-12-16 06:18:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3031 states have (on average 1.3889805344770703) internal successors, (4210), 3034 states have internal predecessors, (4210), 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) [2023-12-16 06:18:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4210 transitions. [2023-12-16 06:18:56,134 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4210 transitions. Word has length 53 [2023-12-16 06:18:56,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:56,134 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 4210 transitions. [2023-12-16 06:18:56,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-12-16 06:18:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4210 transitions. [2023-12-16 06:18:56,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 06:18:56,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:56,137 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] [2023-12-16 06:18:56,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:18:56,137 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:56,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:56,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1007743463, now seen corresponding path program 1 times [2023-12-16 06:18:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:56,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516395862] [2023-12-16 06:18:56,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:56,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516395862] [2023-12-16 06:18:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516395862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:56,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:56,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:56,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680320188] [2023-12-16 06:18:56,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:56,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:56,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:56,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:56,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:56,395 INFO L87 Difference]: Start difference. First operand 3035 states and 4210 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2023-12-16 06:18:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:56,968 INFO L93 Difference]: Finished difference Result 7505 states and 10604 transitions. [2023-12-16 06:18:56,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:18:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2023-12-16 06:18:56,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:56,980 INFO L225 Difference]: With dead ends: 7505 [2023-12-16 06:18:56,980 INFO L226 Difference]: Without dead ends: 5544 [2023-12-16 06:18:56,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:18:56,985 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1903 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:56,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 927 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:18:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2023-12-16 06:18:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 2948. [2023-12-16 06:18:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2944 states have (on average 1.388586956521739) internal successors, (4088), 2947 states have internal predecessors, (4088), 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) [2023-12-16 06:18:57,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4088 transitions. [2023-12-16 06:18:57,061 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4088 transitions. Word has length 54 [2023-12-16 06:18:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:57,061 INFO L495 AbstractCegarLoop]: Abstraction has 2948 states and 4088 transitions. [2023-12-16 06:18:57,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2023-12-16 06:18:57,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4088 transitions. [2023-12-16 06:18:57,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 06:18:57,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:57,064 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] [2023-12-16 06:18:57,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:18:57,064 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:57,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -649389773, now seen corresponding path program 1 times [2023-12-16 06:18:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647208086] [2023-12-16 06:18:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:57,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:57,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647208086] [2023-12-16 06:18:57,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647208086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:57,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:57,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:18:57,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303203600] [2023-12-16 06:18:57,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:57,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:18:57,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:57,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:18:57,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:18:57,281 INFO L87 Difference]: Start difference. First operand 2948 states and 4088 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-12-16 06:18:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:57,997 INFO L93 Difference]: Finished difference Result 8250 states and 11645 transitions. [2023-12-16 06:18:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:18:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2023-12-16 06:18:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:58,012 INFO L225 Difference]: With dead ends: 8250 [2023-12-16 06:18:58,013 INFO L226 Difference]: Without dead ends: 6443 [2023-12-16 06:18:58,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:18:58,018 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1120 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:58,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1328 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:18:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2023-12-16 06:18:58,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 2919. [2023-12-16 06:18:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.388336192109777) internal successors, (4047), 2918 states have internal predecessors, (4047), 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) [2023-12-16 06:18:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4047 transitions. [2023-12-16 06:18:58,111 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4047 transitions. Word has length 54 [2023-12-16 06:18:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:58,112 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4047 transitions. [2023-12-16 06:18:58,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-12-16 06:18:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4047 transitions. [2023-12-16 06:18:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 06:18:58,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:58,114 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] [2023-12-16 06:18:58,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:18:58,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:58,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2094955992, now seen corresponding path program 1 times [2023-12-16 06:18:58,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:58,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967104649] [2023-12-16 06:18:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:58,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:58,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967104649] [2023-12-16 06:18:58,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967104649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:58,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:58,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:18:58,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605681424] [2023-12-16 06:18:58,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:58,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:18:58,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:58,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:18:58,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:18:58,308 INFO L87 Difference]: Start difference. First operand 2919 states and 4047 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-12-16 06:18:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:58,966 INFO L93 Difference]: Finished difference Result 7124 states and 10082 transitions. [2023-12-16 06:18:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:18:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2023-12-16 06:18:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:58,979 INFO L225 Difference]: With dead ends: 7124 [2023-12-16 06:18:58,979 INFO L226 Difference]: Without dead ends: 7119 [2023-12-16 06:18:58,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:18:58,982 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1809 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:58,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1220 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:18:58,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2023-12-16 06:18:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 2919. [2023-12-16 06:18:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3876500857632934) internal successors, (4045), 2918 states have internal predecessors, (4045), 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) [2023-12-16 06:18:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4045 transitions. [2023-12-16 06:18:59,050 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4045 transitions. Word has length 54 [2023-12-16 06:18:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,050 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4045 transitions. [2023-12-16 06:18:59,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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) [2023-12-16 06:18:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4045 transitions. [2023-12-16 06:18:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 06:18:59,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,053 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] [2023-12-16 06:18:59,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:18:59,053 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:59,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -544921047, now seen corresponding path program 1 times [2023-12-16 06:18:59,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758206277] [2023-12-16 06:18:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758206277] [2023-12-16 06:18:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758206277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56009127] [2023-12-16 06:18:59,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,106 INFO L87 Difference]: Start difference. First operand 2919 states and 4045 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,145 INFO L93 Difference]: Finished difference Result 4192 states and 5856 transitions. [2023-12-16 06:18:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-12-16 06:18:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,150 INFO L225 Difference]: With dead ends: 4192 [2023-12-16 06:18:59,150 INFO L226 Difference]: Without dead ends: 2926 [2023-12-16 06:18:59,152 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 [2023-12-16 06:18:59,153 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 224 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 795 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2023-12-16 06:18:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2919. [2023-12-16 06:18:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3739279588336193) internal successors, (4005), 2918 states have internal predecessors, (4005), 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) [2023-12-16 06:18:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4005 transitions. [2023-12-16 06:18:59,224 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4005 transitions. Word has length 55 [2023-12-16 06:18:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,225 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4005 transitions. [2023-12-16 06:18:59,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4005 transitions. [2023-12-16 06:18:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 06:18:59,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,228 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] [2023-12-16 06:18:59,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:18:59,228 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:59,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -171324051, now seen corresponding path program 1 times [2023-12-16 06:18:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501128670] [2023-12-16 06:18:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501128670] [2023-12-16 06:18:59,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501128670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024607031] [2023-12-16 06:18:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,286 INFO L87 Difference]: Start difference. First operand 2919 states and 4005 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,315 INFO L93 Difference]: Finished difference Result 4259 states and 5888 transitions. [2023-12-16 06:18:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-12-16 06:18:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,321 INFO L225 Difference]: With dead ends: 4259 [2023-12-16 06:18:59,321 INFO L226 Difference]: Without dead ends: 2925 [2023-12-16 06:18:59,323 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 [2023-12-16 06:18:59,323 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 240 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 800 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2023-12-16 06:18:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2919. [2023-12-16 06:18:59,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3615780445969126) internal successors, (3969), 2918 states have internal predecessors, (3969), 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) [2023-12-16 06:18:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 3969 transitions. [2023-12-16 06:18:59,370 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 3969 transitions. Word has length 55 [2023-12-16 06:18:59,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,371 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 3969 transitions. [2023-12-16 06:18:59,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 3969 transitions. [2023-12-16 06:18:59,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 06:18:59,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,373 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] [2023-12-16 06:18:59,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:18:59,373 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:59,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1692855010, now seen corresponding path program 1 times [2023-12-16 06:18:59,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044317628] [2023-12-16 06:18:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044317628] [2023-12-16 06:18:59,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044317628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413919049] [2023-12-16 06:18:59,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,423 INFO L87 Difference]: Start difference. First operand 2919 states and 3969 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,452 INFO L93 Difference]: Finished difference Result 4009 states and 5457 transitions. [2023-12-16 06:18:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-12-16 06:18:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,457 INFO L225 Difference]: With dead ends: 4009 [2023-12-16 06:18:59,457 INFO L226 Difference]: Without dead ends: 2910 [2023-12-16 06:18:59,459 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 [2023-12-16 06:18:59,459 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 259 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2023-12-16 06:18:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2904. [2023-12-16 06:18:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2900 states have (on average 1.3341379310344827) internal successors, (3869), 2903 states have internal predecessors, (3869), 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) [2023-12-16 06:18:59,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 3869 transitions. [2023-12-16 06:18:59,504 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 3869 transitions. Word has length 55 [2023-12-16 06:18:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,505 INFO L495 AbstractCegarLoop]: Abstraction has 2904 states and 3869 transitions. [2023-12-16 06:18:59,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-12-16 06:18:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 3869 transitions. [2023-12-16 06:18:59,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 06:18:59,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,508 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] [2023-12-16 06:18:59,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:18:59,508 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:59,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622388, now seen corresponding path program 1 times [2023-12-16 06:18:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318832671] [2023-12-16 06:18:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318832671] [2023-12-16 06:18:59,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318832671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140500006] [2023-12-16 06:18:59,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,556 INFO L87 Difference]: Start difference. First operand 2904 states and 3869 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-12-16 06:18:59,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,610 INFO L93 Difference]: Finished difference Result 4582 states and 6151 transitions. [2023-12-16 06:18:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2023-12-16 06:18:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,616 INFO L225 Difference]: With dead ends: 4582 [2023-12-16 06:18:59,617 INFO L226 Difference]: Without dead ends: 3322 [2023-12-16 06:18:59,619 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 [2023-12-16 06:18:59,619 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 324 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 530 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2023-12-16 06:18:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2722. [2023-12-16 06:18:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2718 states have (on average 1.336644591611479) internal successors, (3633), 2721 states have internal predecessors, (3633), 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) [2023-12-16 06:18:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3633 transitions. [2023-12-16 06:18:59,663 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3633 transitions. Word has length 56 [2023-12-16 06:18:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,664 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3633 transitions. [2023-12-16 06:18:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-12-16 06:18:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3633 transitions. [2023-12-16 06:18:59,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 06:18:59,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,666 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] [2023-12-16 06:18:59,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:18:59,667 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:18:59,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1344491359, now seen corresponding path program 1 times [2023-12-16 06:18:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491534295] [2023-12-16 06:18:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:00,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:00,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491534295] [2023-12-16 06:19:00,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491534295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:00,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:00,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-16 06:19:00,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426418921] [2023-12-16 06:19:00,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:00,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 06:19:00,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 06:19:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:19:00,665 INFO L87 Difference]: Start difference. First operand 2722 states and 3633 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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) [2023-12-16 06:19:03,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:03,085 INFO L93 Difference]: Finished difference Result 4373 states and 5861 transitions. [2023-12-16 06:19:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 06:19:03,086 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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 57 [2023-12-16 06:19:03,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:03,092 INFO L225 Difference]: With dead ends: 4373 [2023-12-16 06:19:03,092 INFO L226 Difference]: Without dead ends: 4369 [2023-12-16 06:19:03,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 06:19:03,094 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 3523 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3523 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:03,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3523 Valid, 5946 Invalid, 2998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 06:19:03,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2023-12-16 06:19:03,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 2722. [2023-12-16 06:19:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2718 states have (on average 1.3362766740250185) internal successors, (3632), 2721 states have internal predecessors, (3632), 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) [2023-12-16 06:19:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3632 transitions. [2023-12-16 06:19:03,139 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3632 transitions. Word has length 57 [2023-12-16 06:19:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:03,139 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3632 transitions. [2023-12-16 06:19:03,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 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) [2023-12-16 06:19:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3632 transitions. [2023-12-16 06:19:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 06:19:03,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:03,142 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] [2023-12-16 06:19:03,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:19:03,142 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:03,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 972832554, now seen corresponding path program 1 times [2023-12-16 06:19:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:03,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788153921] [2023-12-16 06:19:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:03,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:03,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788153921] [2023-12-16 06:19:03,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788153921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:03,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:03,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:19:03,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975771002] [2023-12-16 06:19:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:03,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:19:03,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:19:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:19:03,559 INFO L87 Difference]: Start difference. First operand 2722 states and 3632 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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) [2023-12-16 06:19:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:04,132 INFO L93 Difference]: Finished difference Result 4882 states and 6611 transitions. [2023-12-16 06:19:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:19:04,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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 57 [2023-12-16 06:19:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:04,139 INFO L225 Difference]: With dead ends: 4882 [2023-12-16 06:19:04,140 INFO L226 Difference]: Without dead ends: 4514 [2023-12-16 06:19:04,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:19:04,142 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 2479 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:04,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2479 Valid, 1867 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:19:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2023-12-16 06:19:04,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 2664. [2023-12-16 06:19:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2661 states have (on average 1.3378429161969185) internal successors, (3560), 2663 states have internal predecessors, (3560), 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) [2023-12-16 06:19:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3560 transitions. [2023-12-16 06:19:04,188 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3560 transitions. Word has length 57 [2023-12-16 06:19:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:04,189 INFO L495 AbstractCegarLoop]: Abstraction has 2664 states and 3560 transitions. [2023-12-16 06:19:04,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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) [2023-12-16 06:19:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3560 transitions. [2023-12-16 06:19:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 06:19:04,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:04,191 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] [2023-12-16 06:19:04,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:19:04,191 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:04,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash -45383322, now seen corresponding path program 1 times [2023-12-16 06:19:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:04,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101490831] [2023-12-16 06:19:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:04,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:04,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101490831] [2023-12-16 06:19:04,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101490831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:04,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:04,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:04,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221984586] [2023-12-16 06:19:04,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:04,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:04,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:04,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:04,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:04,239 INFO L87 Difference]: Start difference. First operand 2664 states and 3560 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-16 06:19:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:04,299 INFO L93 Difference]: Finished difference Result 4922 states and 6630 transitions. [2023-12-16 06:19:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:04,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2023-12-16 06:19:04,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:04,305 INFO L225 Difference]: With dead ends: 4922 [2023-12-16 06:19:04,305 INFO L226 Difference]: Without dead ends: 3261 [2023-12-16 06:19:04,308 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 [2023-12-16 06:19:04,309 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 262 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:04,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 410 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2023-12-16 06:19:04,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 2523. [2023-12-16 06:19:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2521 states have (on average 1.3407378024593415) internal successors, (3380), 2522 states have internal predecessors, (3380), 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) [2023-12-16 06:19:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3380 transitions. [2023-12-16 06:19:04,347 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3380 transitions. Word has length 57 [2023-12-16 06:19:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:04,347 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3380 transitions. [2023-12-16 06:19:04,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-16 06:19:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3380 transitions. [2023-12-16 06:19:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:19:04,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:04,350 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] [2023-12-16 06:19:04,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:19:04,350 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:04,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:04,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1565233070, now seen corresponding path program 1 times [2023-12-16 06:19:04,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:04,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377286563] [2023-12-16 06:19:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:04,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:05,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:05,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377286563] [2023-12-16 06:19:05,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377286563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:05,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:05,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 06:19:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629247229] [2023-12-16 06:19:05,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:05,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 06:19:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:05,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 06:19:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:19:05,121 INFO L87 Difference]: Start difference. First operand 2523 states and 3380 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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) [2023-12-16 06:19:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:06,712 INFO L93 Difference]: Finished difference Result 4716 states and 6363 transitions. [2023-12-16 06:19:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 06:19:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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 58 [2023-12-16 06:19:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:06,720 INFO L225 Difference]: With dead ends: 4716 [2023-12-16 06:19:06,720 INFO L226 Difference]: Without dead ends: 4589 [2023-12-16 06:19:06,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2023-12-16 06:19:06,723 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2342 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:06,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 4021 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 06:19:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2023-12-16 06:19:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 2509. [2023-12-16 06:19:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2508 states have (on average 1.3409090909090908) internal successors, (3363), 2508 states have internal predecessors, (3363), 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) [2023-12-16 06:19:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3363 transitions. [2023-12-16 06:19:06,767 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3363 transitions. Word has length 58 [2023-12-16 06:19:06,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:06,767 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3363 transitions. [2023-12-16 06:19:06,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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) [2023-12-16 06:19:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3363 transitions. [2023-12-16 06:19:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:19:06,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:06,771 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] [2023-12-16 06:19:06,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:19:06,772 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:06,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash -65378401, now seen corresponding path program 1 times [2023-12-16 06:19:06,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:06,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032840955] [2023-12-16 06:19:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:06,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:06,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032840955] [2023-12-16 06:19:06,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032840955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:06,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:06,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:19:06,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683106408] [2023-12-16 06:19:06,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:06,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:19:06,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:06,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:19:06,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:06,882 INFO L87 Difference]: Start difference. First operand 2509 states and 3363 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2023-12-16 06:19:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:06,953 INFO L93 Difference]: Finished difference Result 6109 states and 8407 transitions. [2023-12-16 06:19:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:19:06,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2023-12-16 06:19:06,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:06,960 INFO L225 Difference]: With dead ends: 6109 [2023-12-16 06:19:06,960 INFO L226 Difference]: Without dead ends: 4598 [2023-12-16 06:19:06,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:19:06,963 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1044 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:06,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 724 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2023-12-16 06:19:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 3924. [2023-12-16 06:19:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3923 states have (on average 1.3433596737190925) internal successors, (5270), 3923 states have internal predecessors, (5270), 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) [2023-12-16 06:19:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5270 transitions. [2023-12-16 06:19:07,026 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5270 transitions. Word has length 67 [2023-12-16 06:19:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:07,026 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5270 transitions. [2023-12-16 06:19:07,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2023-12-16 06:19:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5270 transitions. [2023-12-16 06:19:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:19:07,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:07,033 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] [2023-12-16 06:19:07,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:19:07,033 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:07,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash -510700073, now seen corresponding path program 1 times [2023-12-16 06:19:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:07,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148680392] [2023-12-16 06:19:07,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:07,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:07,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148680392] [2023-12-16 06:19:07,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148680392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:07,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:07,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:19:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632648463] [2023-12-16 06:19:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:19:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:19:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:07,126 INFO L87 Difference]: Start difference. First operand 3924 states and 5270 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:07,206 INFO L93 Difference]: Finished difference Result 3930 states and 5273 transitions. [2023-12-16 06:19:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:19:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-16 06:19:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:07,210 INFO L225 Difference]: With dead ends: 3930 [2023-12-16 06:19:07,210 INFO L226 Difference]: Without dead ends: 3459 [2023-12-16 06:19:07,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:07,212 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 501 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:07,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 896 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:19:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2023-12-16 06:19:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3455. [2023-12-16 06:19:07,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3454 states have (on average 1.3480023161551824) internal successors, (4656), 3454 states have internal predecessors, (4656), 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) [2023-12-16 06:19:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4656 transitions. [2023-12-16 06:19:07,254 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4656 transitions. Word has length 68 [2023-12-16 06:19:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:07,254 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4656 transitions. [2023-12-16 06:19:07,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4656 transitions. [2023-12-16 06:19:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 06:19:07,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:07,258 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] [2023-12-16 06:19:07,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:19:07,259 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:07,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash 936875869, now seen corresponding path program 1 times [2023-12-16 06:19:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:07,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080670943] [2023-12-16 06:19:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:07,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:07,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:07,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080670943] [2023-12-16 06:19:07,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080670943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:07,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:07,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060457396] [2023-12-16 06:19:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:07,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:07,350 INFO L87 Difference]: Start difference. First operand 3455 states and 4656 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-12-16 06:19:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:07,385 INFO L93 Difference]: Finished difference Result 8071 states and 11006 transitions. [2023-12-16 06:19:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:07,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2023-12-16 06:19:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:07,390 INFO L225 Difference]: With dead ends: 8071 [2023-12-16 06:19:07,390 INFO L226 Difference]: Without dead ends: 5445 [2023-12-16 06:19:07,394 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 [2023-12-16 06:19:07,395 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 136 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:07,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 573 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2023-12-16 06:19:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5127. [2023-12-16 06:19:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 1.3382754584471324) internal successors, (6860), 5126 states have internal predecessors, (6860), 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) [2023-12-16 06:19:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6860 transitions. [2023-12-16 06:19:07,476 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6860 transitions. Word has length 69 [2023-12-16 06:19:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:07,476 INFO L495 AbstractCegarLoop]: Abstraction has 5127 states and 6860 transitions. [2023-12-16 06:19:07,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-12-16 06:19:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6860 transitions. [2023-12-16 06:19:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 06:19:07,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:07,480 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] [2023-12-16 06:19:07,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:19:07,480 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:07,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1521240512, now seen corresponding path program 1 times [2023-12-16 06:19:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:07,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910378874] [2023-12-16 06:19:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:07,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:07,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910378874] [2023-12-16 06:19:07,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910378874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:07,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:07,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:07,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060129993] [2023-12-16 06:19:07,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:07,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:07,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:07,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:07,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:07,561 INFO L87 Difference]: Start difference. First operand 5127 states and 6860 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-12-16 06:19:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:07,607 INFO L93 Difference]: Finished difference Result 13247 states and 17962 transitions. [2023-12-16 06:19:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:07,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2023-12-16 06:19:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:07,618 INFO L225 Difference]: With dead ends: 13247 [2023-12-16 06:19:07,618 INFO L226 Difference]: Without dead ends: 8987 [2023-12-16 06:19:07,626 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 [2023-12-16 06:19:07,627 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 124 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:07,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 561 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8987 states. [2023-12-16 06:19:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8987 to 8249. [2023-12-16 06:19:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8249 states, 8248 states have (on average 1.3397187196896216) internal successors, (11050), 8248 states have internal predecessors, (11050), 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) [2023-12-16 06:19:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8249 states to 8249 states and 11050 transitions. [2023-12-16 06:19:07,743 INFO L78 Accepts]: Start accepts. Automaton has 8249 states and 11050 transitions. Word has length 70 [2023-12-16 06:19:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:07,743 INFO L495 AbstractCegarLoop]: Abstraction has 8249 states and 11050 transitions. [2023-12-16 06:19:07,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-12-16 06:19:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8249 states and 11050 transitions. [2023-12-16 06:19:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 06:19:07,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:07,747 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] [2023-12-16 06:19:07,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:19:07,747 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:07,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:07,748 INFO L85 PathProgramCache]: Analyzing trace with hash -665898309, now seen corresponding path program 1 times [2023-12-16 06:19:07,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:07,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052646466] [2023-12-16 06:19:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:07,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:07,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:07,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052646466] [2023-12-16 06:19:07,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052646466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:07,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:07,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187684908] [2023-12-16 06:19:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:07,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:07,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:07,826 INFO L87 Difference]: Start difference. First operand 8249 states and 11050 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-16 06:19:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:07,905 INFO L93 Difference]: Finished difference Result 22213 states and 29924 transitions. [2023-12-16 06:19:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2023-12-16 06:19:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:07,924 INFO L225 Difference]: With dead ends: 22213 [2023-12-16 06:19:07,925 INFO L226 Difference]: Without dead ends: 14831 [2023-12-16 06:19:07,936 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 [2023-12-16 06:19:07,937 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 102 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:07,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 551 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2023-12-16 06:19:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 13613. [2023-12-16 06:19:08,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13613 states, 13612 states have (on average 1.3333823097267117) internal successors, (18150), 13612 states have internal predecessors, (18150), 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) [2023-12-16 06:19:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13613 states to 13613 states and 18150 transitions. [2023-12-16 06:19:08,203 INFO L78 Accepts]: Start accepts. Automaton has 13613 states and 18150 transitions. Word has length 72 [2023-12-16 06:19:08,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,204 INFO L495 AbstractCegarLoop]: Abstraction has 13613 states and 18150 transitions. [2023-12-16 06:19:08,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-16 06:19:08,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13613 states and 18150 transitions. [2023-12-16 06:19:08,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 06:19:08,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,208 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] [2023-12-16 06:19:08,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:19:08,208 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:08,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash 93568553, now seen corresponding path program 1 times [2023-12-16 06:19:08,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197517282] [2023-12-16 06:19:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197517282] [2023-12-16 06:19:08,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197517282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:19:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680415982] [2023-12-16 06:19:08,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:19:08,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:19:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:19:08,388 INFO L87 Difference]: Start difference. First operand 13613 states and 18150 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 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) [2023-12-16 06:19:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,534 INFO L93 Difference]: Finished difference Result 29123 states and 38269 transitions. [2023-12-16 06:19:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:19:08,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 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 [2023-12-16 06:19:08,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,576 INFO L225 Difference]: With dead ends: 29123 [2023-12-16 06:19:08,577 INFO L226 Difference]: Without dead ends: 29121 [2023-12-16 06:19:08,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:19:08,589 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 362 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:08,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1359 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:08,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2023-12-16 06:19:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 14957. [2023-12-16 06:19:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14957 states, 14956 states have (on average 1.3034233752340199) internal successors, (19494), 14956 states have internal predecessors, (19494), 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) [2023-12-16 06:19:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14957 states to 14957 states and 19494 transitions. [2023-12-16 06:19:09,116 INFO L78 Accepts]: Start accepts. Automaton has 14957 states and 19494 transitions. Word has length 74 [2023-12-16 06:19:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:09,116 INFO L495 AbstractCegarLoop]: Abstraction has 14957 states and 19494 transitions. [2023-12-16 06:19:09,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 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) [2023-12-16 06:19:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 14957 states and 19494 transitions. [2023-12-16 06:19:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 06:19:09,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:09,120 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] [2023-12-16 06:19:09,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:19:09,120 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:09,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:09,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1179448625, now seen corresponding path program 1 times [2023-12-16 06:19:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:09,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971388575] [2023-12-16 06:19:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:09,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971388575] [2023-12-16 06:19:09,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971388575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:09,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:09,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:09,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054261859] [2023-12-16 06:19:09,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:09,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:09,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:09,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:09,172 INFO L87 Difference]: Start difference. First operand 14957 states and 19494 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-12-16 06:19:09,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:09,279 INFO L93 Difference]: Finished difference Result 36153 states and 47088 transitions. [2023-12-16 06:19:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:09,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2023-12-16 06:19:09,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:09,312 INFO L225 Difference]: With dead ends: 36153 [2023-12-16 06:19:09,312 INFO L226 Difference]: Without dead ends: 22063 [2023-12-16 06:19:09,337 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 [2023-12-16 06:19:09,338 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 197 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:09,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 428 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22063 states. [2023-12-16 06:19:09,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22063 to 22061. [2023-12-16 06:19:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22061 states, 22060 states have (on average 1.286219401631913) internal successors, (28374), 22060 states have internal predecessors, (28374), 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) [2023-12-16 06:19:09,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22061 states to 22061 states and 28374 transitions. [2023-12-16 06:19:09,827 INFO L78 Accepts]: Start accepts. Automaton has 22061 states and 28374 transitions. Word has length 75 [2023-12-16 06:19:09,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:09,828 INFO L495 AbstractCegarLoop]: Abstraction has 22061 states and 28374 transitions. [2023-12-16 06:19:09,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-12-16 06:19:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 22061 states and 28374 transitions. [2023-12-16 06:19:09,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 06:19:09,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:09,832 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] [2023-12-16 06:19:09,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:19:09,833 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:09,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 667979649, now seen corresponding path program 1 times [2023-12-16 06:19:09,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134463126] [2023-12-16 06:19:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:09,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:09,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:09,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134463126] [2023-12-16 06:19:09,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134463126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:09,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:09,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:19:09,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084265264] [2023-12-16 06:19:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:09,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:19:09,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:19:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:09,942 INFO L87 Difference]: Start difference. First operand 22061 states and 28374 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2023-12-16 06:19:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:10,144 INFO L93 Difference]: Finished difference Result 32519 states and 42077 transitions. [2023-12-16 06:19:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:19:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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 [2023-12-16 06:19:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:10,197 INFO L225 Difference]: With dead ends: 32519 [2023-12-16 06:19:10,197 INFO L226 Difference]: Without dead ends: 27657 [2023-12-16 06:19:10,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:19:10,213 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 666 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:10,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 848 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:10,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27657 states. [2023-12-16 06:19:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27657 to 25215. [2023-12-16 06:19:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25215 states, 25214 states have (on average 1.2836122788926787) internal successors, (32365), 25214 states have internal predecessors, (32365), 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) [2023-12-16 06:19:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25215 states to 25215 states and 32365 transitions. [2023-12-16 06:19:10,675 INFO L78 Accepts]: Start accepts. Automaton has 25215 states and 32365 transitions. Word has length 76 [2023-12-16 06:19:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:10,676 INFO L495 AbstractCegarLoop]: Abstraction has 25215 states and 32365 transitions. [2023-12-16 06:19:10,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2023-12-16 06:19:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand 25215 states and 32365 transitions. [2023-12-16 06:19:10,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 06:19:10,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:10,679 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] [2023-12-16 06:19:10,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 06:19:10,680 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:10,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1316845845, now seen corresponding path program 1 times [2023-12-16 06:19:10,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:10,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059398863] [2023-12-16 06:19:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:10,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:10,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059398863] [2023-12-16 06:19:10,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059398863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:10,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:10,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:19:10,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833810070] [2023-12-16 06:19:10,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:10,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:19:10,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:10,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:19:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:10,778 INFO L87 Difference]: Start difference. First operand 25215 states and 32365 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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) [2023-12-16 06:19:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:11,079 INFO L93 Difference]: Finished difference Result 33923 states and 43753 transitions. [2023-12-16 06:19:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:19:11,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 [2023-12-16 06:19:11,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:11,154 INFO L225 Difference]: With dead ends: 33923 [2023-12-16 06:19:11,154 INFO L226 Difference]: Without dead ends: 29157 [2023-12-16 06:19:11,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:19:11,171 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 671 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:11,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 836 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:11,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29157 states. [2023-12-16 06:19:11,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29157 to 28311. [2023-12-16 06:19:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28311 states, 28310 states have (on average 1.2812787001059696) internal successors, (36273), 28310 states have internal predecessors, (36273), 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) [2023-12-16 06:19:11,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28311 states to 28311 states and 36273 transitions. [2023-12-16 06:19:11,637 INFO L78 Accepts]: Start accepts. Automaton has 28311 states and 36273 transitions. Word has length 78 [2023-12-16 06:19:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:11,638 INFO L495 AbstractCegarLoop]: Abstraction has 28311 states and 36273 transitions. [2023-12-16 06:19:11,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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) [2023-12-16 06:19:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 28311 states and 36273 transitions. [2023-12-16 06:19:11,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:19:11,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:11,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:11,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 06:19:11,758 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:11,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash 710675695, now seen corresponding path program 1 times [2023-12-16 06:19:11,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:11,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462338689] [2023-12-16 06:19:11,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:11,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 06:19:11,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:11,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462338689] [2023-12-16 06:19:11,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462338689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:11,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:11,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:19:11,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844641741] [2023-12-16 06:19:11,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:11,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:19:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:19:11,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:19:11,990 INFO L87 Difference]: Start difference. First operand 28311 states and 36273 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2023-12-16 06:19:12,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:12,733 INFO L93 Difference]: Finished difference Result 65136 states and 83085 transitions. [2023-12-16 06:19:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:19:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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 94 [2023-12-16 06:19:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:12,805 INFO L225 Difference]: With dead ends: 65136 [2023-12-16 06:19:12,806 INFO L226 Difference]: Without dead ends: 46342 [2023-12-16 06:19:12,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:19:12,844 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 786 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:12,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1221 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:19:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46342 states. [2023-12-16 06:19:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46342 to 28179. [2023-12-16 06:19:13,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28179 states, 28178 states have (on average 1.2816026687486692) internal successors, (36113), 28178 states have internal predecessors, (36113), 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) [2023-12-16 06:19:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28179 states to 28179 states and 36113 transitions. [2023-12-16 06:19:13,608 INFO L78 Accepts]: Start accepts. Automaton has 28179 states and 36113 transitions. Word has length 94 [2023-12-16 06:19:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:13,608 INFO L495 AbstractCegarLoop]: Abstraction has 28179 states and 36113 transitions. [2023-12-16 06:19:13,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2023-12-16 06:19:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 28179 states and 36113 transitions. [2023-12-16 06:19:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:19:13,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:13,618 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:13,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 06:19:13,618 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:13,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:13,619 INFO L85 PathProgramCache]: Analyzing trace with hash -212725949, now seen corresponding path program 1 times [2023-12-16 06:19:13,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:13,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262103910] [2023-12-16 06:19:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:13,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 06:19:13,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:13,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262103910] [2023-12-16 06:19:13,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262103910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:13,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:13,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:19:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34165042] [2023-12-16 06:19:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:13,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:19:13,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:19:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:19:13,837 INFO L87 Difference]: Start difference. First operand 28179 states and 36113 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2023-12-16 06:19:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:14,615 INFO L93 Difference]: Finished difference Result 83470 states and 106772 transitions. [2023-12-16 06:19:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:19:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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 94 [2023-12-16 06:19:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:14,699 INFO L225 Difference]: With dead ends: 83470 [2023-12-16 06:19:14,699 INFO L226 Difference]: Without dead ends: 69581 [2023-12-16 06:19:14,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:19:14,727 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 881 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:14,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1327 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:19:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69581 states. [2023-12-16 06:19:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69581 to 28125. [2023-12-16 06:19:15,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28125 states, 28124 states have (on average 1.2816811264400512) internal successors, (36046), 28124 states have internal predecessors, (36046), 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) [2023-12-16 06:19:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28125 states to 28125 states and 36046 transitions. [2023-12-16 06:19:15,418 INFO L78 Accepts]: Start accepts. Automaton has 28125 states and 36046 transitions. Word has length 94 [2023-12-16 06:19:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:15,418 INFO L495 AbstractCegarLoop]: Abstraction has 28125 states and 36046 transitions. [2023-12-16 06:19:15,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2023-12-16 06:19:15,418 INFO L276 IsEmpty]: Start isEmpty. Operand 28125 states and 36046 transitions. [2023-12-16 06:19:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 06:19:15,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:15,427 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:15,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 06:19:15,428 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-16 06:19:15,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1761500302, now seen corresponding path program 1 times [2023-12-16 06:19:15,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:15,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870732296] [2023-12-16 06:19:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:15,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:15,682 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:15,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:15,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870732296] [2023-12-16 06:19:15,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870732296] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:19:15,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776712353] [2023-12-16 06:19:15,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:15,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:19:15,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:19:15,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:19:15,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:19:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:15,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 06:19:15,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:19:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:17,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:19:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776712353] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:19:17,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:19:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-12-16 06:19:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908667912] [2023-12-16 06:19:17,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:19:17,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-16 06:19:17,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-16 06:19:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2023-12-16 06:19:17,968 INFO L87 Difference]: Start difference. First operand 28125 states and 36046 transitions. Second operand has 31 states, 31 states have (on average 8.193548387096774) internal successors, (254), 30 states have internal predecessors, (254), 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) Received shutdown request... [2023-12-16 06:19:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2023-12-16 06:19:36,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29201 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=11017, Invalid=61613, Unknown=0, NotChecked=0, Total=72630 [2023-12-16 06:19:36,149 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 7520 mSDsluCounter, 9049 mSDsCounter, 0 mSdLazyCounter, 9196 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7520 SdHoareTripleChecker+Valid, 9490 SdHoareTripleChecker+Invalid, 9334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 9196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:36,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7520 Valid, 9490 Invalid, 9334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [138 Valid, 9196 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 06:19:36,150 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-16 06:19:36,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:19:36,185 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:19:36,186 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:19:36,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-12-16 06:19:36,352 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (28125states) and FLOYD_HOARE automaton (currently 241 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (162463 states constructed, input type IntersectNwa). [2023-12-16 06:19:36,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-12-16 06:19:36,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-12-16 06:19:36,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-12-16 06:19:36,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:36,359 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:19:36,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:19:36 BoogieIcfgContainer [2023-12-16 06:19:36,360 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:19:36,361 INFO L158 Benchmark]: Toolchain (without parser) took 48725.61ms. Allocated memory was 211.8MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 145.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 604.0MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,361 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 211.8MB. Free memory is still 164.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:19:36,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 876.92ms. Allocated memory is still 211.8MB. Free memory was 145.6MB in the beginning and 90.5MB in the end (delta: 55.1MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.63ms. Allocated memory was 211.8MB in the beginning and 269.5MB in the end (delta: 57.7MB). Free memory was 90.5MB in the beginning and 229.1MB in the end (delta: -138.6MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,361 INFO L158 Benchmark]: Boogie Preprocessor took 174.14ms. Allocated memory is still 269.5MB. Free memory was 229.1MB in the beginning and 217.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,362 INFO L158 Benchmark]: RCFGBuilder took 1733.16ms. Allocated memory is still 269.5MB. Free memory was 217.5MB in the beginning and 189.1MB in the end (delta: 28.5MB). Peak memory consumption was 117.1MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,364 INFO L158 Benchmark]: TraceAbstraction took 45798.90ms. Allocated memory was 269.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 188.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 588.8MB. Max. memory is 8.0GB. [2023-12-16 06:19:36,365 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 211.8MB. Free memory is still 164.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 876.92ms. Allocated memory is still 211.8MB. Free memory was 145.6MB in the beginning and 90.5MB in the end (delta: 55.1MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 136.63ms. Allocated memory was 211.8MB in the beginning and 269.5MB in the end (delta: 57.7MB). Free memory was 90.5MB in the beginning and 229.1MB in the end (delta: -138.6MB). Peak memory consumption was 18.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 174.14ms. Allocated memory is still 269.5MB. Free memory was 229.1MB in the beginning and 217.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1733.16ms. Allocated memory is still 269.5MB. Free memory was 217.5MB in the beginning and 189.1MB in the end (delta: 28.5MB). Peak memory consumption was 117.1MB. Max. memory is 8.0GB. * TraceAbstraction took 45798.90ms. Allocated memory was 269.5MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 188.6MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 588.8MB. 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: 453]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 453). Cancelled while NwaCegarLoop was constructing difference of abstraction (28125states) and FLOYD_HOARE automaton (currently 241 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (162463 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1049). Cancelled while NwaCegarLoop was constructing difference of abstraction (28125states) and FLOYD_HOARE automaton (currently 241 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (162463 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 1224]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1224). Cancelled while NwaCegarLoop was constructing difference of abstraction (28125states) and FLOYD_HOARE automaton (currently 241 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (162463 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 1307]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1307). Cancelled while NwaCegarLoop was constructing difference of abstraction (28125states) and FLOYD_HOARE automaton (currently 241 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (162463 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 455 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 45.7s, OverallIterations: 32, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 31.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41507 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41507 mSDsluCounter, 43916 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31599 mSDsCounter, 587 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21340 IncrementalHoareTripleChecker+Invalid, 21927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 587 mSolverCounterUnsat, 12317 mSDtfsCounter, 21340 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 732 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 514 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29758 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28311occurred in iteration=29, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 31 MinimizatonAttempts, 117929 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2102 NumberOfCodeBlocks, 2102 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 2163 ConstructedInterpolants, 0 QuantifiedInterpolants, 14571 SizeOfPredicates, 12 NumberOfNonLiveVariables, 537 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 34 InterpolantComputations, 31 PerfectInterpolantSequences, 44/50 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