/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/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 [2023-12-15 23:28:42,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:28:42,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:28:42,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:28:42,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:28:42,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:28:42,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:28:42,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:28:42,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:28:42,632 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:28:42,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:28:42,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:28:42,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:28:42,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:28:42,634 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:28:42,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:28:42,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:28:42,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:28:42,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:28:42,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:28:42,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:28:42,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:28:42,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:28:42,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:28:42,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:28:42,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:28:42,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:28:42,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:28:42,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:28:42,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:28:42,640 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:28:42,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:28:42,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:28:42,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:28:42,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:28:42,853 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:28:42,854 INFO L431 ainManager$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 [2023-12-15 23:28:43,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:28:44,120 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:28:44,121 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 [2023-12-15 23:28:44,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7972738/ac2caad29fed4a7d82fd3bc8db9a8393/FLAGe64b62096 [2023-12-15 23:28:44,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7972738/ac2caad29fed4a7d82fd3bc8db9a8393 [2023-12-15 23:28:44,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:28:44,148 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:28:44,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:28:44,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:28:44,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:28:44,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa75118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44, skipping insertion in model container [2023-12-15 23:28:44,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:28:44,415 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] [2023-12-15 23:28:44,451 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] [2023-12-15 23:28:44,459 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-12-15 23:28:44,463 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] [2023-12-15 23:28:44,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:28:44,677 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:28:44,733 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] [2023-12-15 23:28:44,756 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] [2023-12-15 23:28:44,764 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] [2023-12-15 23:28:44,767 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] [2023-12-15 23:28:44,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:28:44,872 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:28:44,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44 WrapperNode [2023-12-15 23:28:44,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:28:44,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:28:44,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:28:44,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:28:44,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,974 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2841 [2023-12-15 23:28:44,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:28:44,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:28:44,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:28:44,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:28:44,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:44,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,021 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:28:45,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:28:45,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:28:45,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:28:45,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:28:45,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (1/1) ... [2023-12-15 23:28:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:28:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:28:45,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:28:45,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:28:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:28:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:28:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:28:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:28:45,352 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:28:45,354 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:28:46,368 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:28:46,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:28:46,409 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:28:46,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:28:46 BoogieIcfgContainer [2023-12-15 23:28:46,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:28:46,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:28:46,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:28:46,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:28:46,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:28:44" (1/3) ... [2023-12-15 23:28:46,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77498b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:28:46, skipping insertion in model container [2023-12-15 23:28:46,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:28:44" (2/3) ... [2023-12-15 23:28:46,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77498b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:28:46, skipping insertion in model container [2023-12-15 23:28:46,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:28:46" (3/3) ... [2023-12-15 23:28:46,415 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:28:46,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:28:46,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-15 23:28:46,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:28:46,514 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;@ae1e3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:28:46,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-15 23:28:46,522 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) [2023-12-15 23:28:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:28:46,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:46,540 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] [2023-12-15 23:28:46,541 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)] === [2023-12-15 23:28:46,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:46,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1875598250, now seen corresponding path program 1 times [2023-12-15 23:28:46,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065617120] [2023-12-15 23:28:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:46,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065617120] [2023-12-15 23:28:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065617120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:46,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:46,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:46,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566590796] [2023-12-15 23:28:46,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:46,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:46,835 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) [2023-12-15 23:28:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:46,930 INFO L93 Difference]: Finished difference Result 721 states and 1267 transitions. [2023-12-15 23:28:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:46,935 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 [2023-12-15 23:28:46,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:46,945 INFO L225 Difference]: With dead ends: 721 [2023-12-15 23:28:46,946 INFO L226 Difference]: Without dead ends: 570 [2023-12-15 23:28:46,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:46,951 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:46,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:28:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-15 23:28:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 564. [2023-12-15 23:28:47,012 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) [2023-12-15 23:28:47,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 753 transitions. [2023-12-15 23:28:47,016 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 753 transitions. Word has length 50 [2023-12-15 23:28:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:47,016 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 753 transitions. [2023-12-15 23:28:47,016 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) [2023-12-15 23:28:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 753 transitions. [2023-12-15 23:28:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:28:47,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:47,019 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] [2023-12-15 23:28:47,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:28:47,020 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)] === [2023-12-15 23:28:47,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:47,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2061015356, now seen corresponding path program 1 times [2023-12-15 23:28:47,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:47,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870831862] [2023-12-15 23:28:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:47,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:47,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:47,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870831862] [2023-12-15 23:28:47,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870831862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:47,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770095026] [2023-12-15 23:28:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:47,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:47,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:47,125 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) [2023-12-15 23:28:47,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:47,190 INFO L93 Difference]: Finished difference Result 993 states and 1378 transitions. [2023-12-15 23:28:47,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:47,191 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 [2023-12-15 23:28:47,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:47,194 INFO L225 Difference]: With dead ends: 993 [2023-12-15 23:28:47,194 INFO L226 Difference]: Without dead ends: 780 [2023-12-15 23:28:47,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:47,196 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 [2023-12-15 23:28:47,196 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] [2023-12-15 23:28:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-12-15 23:28:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 773. [2023-12-15 23:28:47,214 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) [2023-12-15 23:28:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1055 transitions. [2023-12-15 23:28:47,216 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1055 transitions. Word has length 50 [2023-12-15 23:28:47,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:47,217 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1055 transitions. [2023-12-15 23:28:47,217 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) [2023-12-15 23:28:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1055 transitions. [2023-12-15 23:28:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-15 23:28:47,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:47,220 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] [2023-12-15 23:28:47,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:28:47,220 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)] === [2023-12-15 23:28:47,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2089668058, now seen corresponding path program 1 times [2023-12-15 23:28:47,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:47,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005079298] [2023-12-15 23:28:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:47,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:47,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005079298] [2023-12-15 23:28:47,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005079298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:47,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:28:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159884124] [2023-12-15 23:28:47,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:47,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:28:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:47,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:28:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:28:47,336 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) [2023-12-15 23:28:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:47,691 INFO L93 Difference]: Finished difference Result 1719 states and 2418 transitions. [2023-12-15 23:28:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:28:47,692 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 [2023-12-15 23:28:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:47,696 INFO L225 Difference]: With dead ends: 1719 [2023-12-15 23:28:47,697 INFO L226 Difference]: Without dead ends: 1062 [2023-12-15 23:28:47,700 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 [2023-12-15 23:28:47,703 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:47,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 390 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:28:47,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-12-15 23:28:47,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1056. [2023-12-15 23:28:47,730 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) [2023-12-15 23:28:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1481 transitions. [2023-12-15 23:28:47,732 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1481 transitions. Word has length 50 [2023-12-15 23:28:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:47,733 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 1481 transitions. [2023-12-15 23:28:47,734 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) [2023-12-15 23:28:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1481 transitions. [2023-12-15 23:28:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:28:47,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:47,736 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] [2023-12-15 23:28:47,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:28:47,736 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)] === [2023-12-15 23:28:47,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash -941949597, now seen corresponding path program 1 times [2023-12-15 23:28:47,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:47,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439766768] [2023-12-15 23:28:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:47,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:47,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439766768] [2023-12-15 23:28:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439766768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:47,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:47,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918868576] [2023-12-15 23:28:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:47,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:47,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:47,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:47,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:47,830 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) [2023-12-15 23:28:47,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:47,869 INFO L93 Difference]: Finished difference Result 2560 states and 3636 transitions. [2023-12-15 23:28:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:47,869 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 [2023-12-15 23:28:47,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:47,874 INFO L225 Difference]: With dead ends: 2560 [2023-12-15 23:28:47,874 INFO L226 Difference]: Without dead ends: 1729 [2023-12-15 23:28:47,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:47,881 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 [2023-12-15 23:28:47,882 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] [2023-12-15 23:28:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2023-12-15 23:28:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1715. [2023-12-15 23:28:47,908 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) [2023-12-15 23:28:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2382 transitions. [2023-12-15 23:28:47,912 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2382 transitions. Word has length 51 [2023-12-15 23:28:47,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:47,913 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2382 transitions. [2023-12-15 23:28:47,913 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) [2023-12-15 23:28:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2382 transitions. [2023-12-15 23:28:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:28:47,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:47,915 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] [2023-12-15 23:28:47,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:28:47,915 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)] === [2023-12-15 23:28:47,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:47,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1880466014, now seen corresponding path program 1 times [2023-12-15 23:28:47,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:47,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033517263] [2023-12-15 23:28:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:47,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:48,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:48,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:48,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033517263] [2023-12-15 23:28:48,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033517263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:48,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:48,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:28:48,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200945727] [2023-12-15 23:28:48,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:48,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:28:48,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:28:48,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:28:48,030 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) [2023-12-15 23:28:48,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:48,261 INFO L93 Difference]: Finished difference Result 3784 states and 5311 transitions. [2023-12-15 23:28:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:28:48,261 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 [2023-12-15 23:28:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:48,267 INFO L225 Difference]: With dead ends: 3784 [2023-12-15 23:28:48,267 INFO L226 Difference]: Without dead ends: 2240 [2023-12-15 23:28:48,270 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 [2023-12-15 23:28:48,271 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 [2023-12-15 23:28:48,271 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] [2023-12-15 23:28:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-12-15 23:28:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2226. [2023-12-15 23:28:48,296 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) [2023-12-15 23:28:48,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3104 transitions. [2023-12-15 23:28:48,300 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3104 transitions. Word has length 51 [2023-12-15 23:28:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:48,300 INFO L495 AbstractCegarLoop]: Abstraction has 2226 states and 3104 transitions. [2023-12-15 23:28:48,300 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) [2023-12-15 23:28:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3104 transitions. [2023-12-15 23:28:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 23:28:48,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:48,302 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] [2023-12-15 23:28:48,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:28:48,302 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)] === [2023-12-15 23:28:48,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1402460387, now seen corresponding path program 1 times [2023-12-15 23:28:48,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95702202] [2023-12-15 23:28:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:48,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:48,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95702202] [2023-12-15 23:28:48,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95702202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:48,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:48,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:28:48,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614129188] [2023-12-15 23:28:48,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:48,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:28:48,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:48,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:28:48,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:28:48,381 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) [2023-12-15 23:28:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:48,599 INFO L93 Difference]: Finished difference Result 5039 states and 7065 transitions. [2023-12-15 23:28:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:28:48,599 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 [2023-12-15 23:28:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:48,607 INFO L225 Difference]: With dead ends: 5039 [2023-12-15 23:28:48,607 INFO L226 Difference]: Without dead ends: 2984 [2023-12-15 23:28:48,609 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 [2023-12-15 23:28:48,610 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1386 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-15 23:28:48,610 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] [2023-12-15 23:28:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2023-12-15 23:28:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2965. [2023-12-15 23:28:48,648 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) [2023-12-15 23:28:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4117 transitions. [2023-12-15 23:28:48,654 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4117 transitions. Word has length 52 [2023-12-15 23:28:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:48,654 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 4117 transitions. [2023-12-15 23:28:48,654 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) [2023-12-15 23:28:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4117 transitions. [2023-12-15 23:28:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:28:48,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:48,656 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] [2023-12-15 23:28:48,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:28:48,656 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)] === [2023-12-15 23:28:48,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash -78307905, now seen corresponding path program 1 times [2023-12-15 23:28:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:48,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190286607] [2023-12-15 23:28:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:48,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:48,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190286607] [2023-12-15 23:28:48,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190286607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:48,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:48,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:28:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715100022] [2023-12-15 23:28:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:48,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:28:48,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:48,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:28:48,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:28:48,740 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) [2023-12-15 23:28:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:49,139 INFO L93 Difference]: Finished difference Result 9647 states and 13610 transitions. [2023-12-15 23:28:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:28:49,140 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 [2023-12-15 23:28:49,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:49,160 INFO L225 Difference]: With dead ends: 9647 [2023-12-15 23:28:49,160 INFO L226 Difference]: Without dead ends: 8326 [2023-12-15 23:28:49,164 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 [2023-12-15 23:28:49,165 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 2823 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-12-15 23:28:49,165 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] [2023-12-15 23:28:49,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8326 states. [2023-12-15 23:28:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8326 to 2979. [2023-12-15 23:28:49,270 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) [2023-12-15 23:28:49,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4135 transitions. [2023-12-15 23:28:49,276 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4135 transitions. Word has length 53 [2023-12-15 23:28:49,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:49,276 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4135 transitions. [2023-12-15 23:28:49,277 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) [2023-12-15 23:28:49,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4135 transitions. [2023-12-15 23:28:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:28:49,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:49,279 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] [2023-12-15 23:28:49,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:28:49,279 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)] === [2023-12-15 23:28:49,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319552, now seen corresponding path program 1 times [2023-12-15 23:28:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674181966] [2023-12-15 23:28:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:49,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674181966] [2023-12-15 23:28:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674181966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:49,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:49,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:28:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362206680] [2023-12-15 23:28:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:49,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:28:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:49,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:28:49,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:28:49,412 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) [2023-12-15 23:28:49,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:49,822 INFO L93 Difference]: Finished difference Result 10677 states and 15138 transitions. [2023-12-15 23:28:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:28:49,822 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 [2023-12-15 23:28:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:49,859 INFO L225 Difference]: With dead ends: 10677 [2023-12-15 23:28:49,860 INFO L226 Difference]: Without dead ends: 9559 [2023-12-15 23:28:49,865 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 [2023-12-15 23:28:49,866 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2129 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:49,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 755 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:28:49,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2023-12-15 23:28:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 3001. [2023-12-15 23:28:49,961 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) [2023-12-15 23:28:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4166 transitions. [2023-12-15 23:28:49,965 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4166 transitions. Word has length 53 [2023-12-15 23:28:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:49,966 INFO L495 AbstractCegarLoop]: Abstraction has 3001 states and 4166 transitions. [2023-12-15 23:28:49,966 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) [2023-12-15 23:28:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4166 transitions. [2023-12-15 23:28:49,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-15 23:28:49,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:49,968 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] [2023-12-15 23:28:49,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:28:49,968 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)] === [2023-12-15 23:28:49,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:49,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1821294495, now seen corresponding path program 1 times [2023-12-15 23:28:49,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:49,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870471] [2023-12-15 23:28:49,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:49,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870471] [2023-12-15 23:28:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:50,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:50,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:28:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173682767] [2023-12-15 23:28:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:50,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:28:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:50,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:28:50,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:28:50,071 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) [2023-12-15 23:28:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:50,449 INFO L93 Difference]: Finished difference Result 12682 states and 17894 transitions. [2023-12-15 23:28:50,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:28:50,450 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 [2023-12-15 23:28:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:50,471 INFO L225 Difference]: With dead ends: 12682 [2023-12-15 23:28:50,471 INFO L226 Difference]: Without dead ends: 11714 [2023-12-15 23:28:50,479 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 [2023-12-15 23:28:50,481 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3300 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:50,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 653 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:28:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2023-12-15 23:28:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 3035. [2023-12-15 23:28:50,583 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) [2023-12-15 23:28:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4210 transitions. [2023-12-15 23:28:50,588 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4210 transitions. Word has length 53 [2023-12-15 23:28:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:50,588 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 4210 transitions. [2023-12-15 23:28:50,588 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) [2023-12-15 23:28:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4210 transitions. [2023-12-15 23:28:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:28:50,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:50,590 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] [2023-12-15 23:28:50,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:28:50,590 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)] === [2023-12-15 23:28:50,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:50,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1007743463, now seen corresponding path program 1 times [2023-12-15 23:28:50,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073321970] [2023-12-15 23:28:50,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:50,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:50,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:50,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073321970] [2023-12-15 23:28:50,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073321970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:50,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:50,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:28:50,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013859899] [2023-12-15 23:28:50,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:50,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:28:50,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:50,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:28:50,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:28:50,871 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) [2023-12-15 23:28:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:51,289 INFO L93 Difference]: Finished difference Result 7505 states and 10604 transitions. [2023-12-15 23:28:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:28:51,290 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 [2023-12-15 23:28:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:51,301 INFO L225 Difference]: With dead ends: 7505 [2023-12-15 23:28:51,301 INFO L226 Difference]: Without dead ends: 5544 [2023-12-15 23:28:51,307 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 [2023-12-15 23:28:51,308 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1903 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:51,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 927 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:28:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2023-12-15 23:28:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 2948. [2023-12-15 23:28:51,355 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) [2023-12-15 23:28:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4088 transitions. [2023-12-15 23:28:51,360 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4088 transitions. Word has length 54 [2023-12-15 23:28:51,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:51,360 INFO L495 AbstractCegarLoop]: Abstraction has 2948 states and 4088 transitions. [2023-12-15 23:28:51,360 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) [2023-12-15 23:28:51,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4088 transitions. [2023-12-15 23:28:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:28:51,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:51,362 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] [2023-12-15 23:28:51,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:28:51,362 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)] === [2023-12-15 23:28:51,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -649389773, now seen corresponding path program 1 times [2023-12-15 23:28:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:51,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772111971] [2023-12-15 23:28:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:51,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:51,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:51,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772111971] [2023-12-15 23:28:51,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772111971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:51,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:51,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:28:51,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392873941] [2023-12-15 23:28:51,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:51,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:28:51,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:51,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:28:51,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:28:51,559 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) [2023-12-15 23:28:52,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:52,217 INFO L93 Difference]: Finished difference Result 8250 states and 11645 transitions. [2023-12-15 23:28:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:28:52,217 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 [2023-12-15 23:28:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:52,227 INFO L225 Difference]: With dead ends: 8250 [2023-12-15 23:28:52,227 INFO L226 Difference]: Without dead ends: 6443 [2023-12-15 23:28:52,229 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 [2023-12-15 23:28:52,229 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1120 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:52,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1328 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:28:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2023-12-15 23:28:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 2919. [2023-12-15 23:28:52,275 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) [2023-12-15 23:28:52,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4047 transitions. [2023-12-15 23:28:52,278 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4047 transitions. Word has length 54 [2023-12-15 23:28:52,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:52,278 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4047 transitions. [2023-12-15 23:28:52,278 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) [2023-12-15 23:28:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4047 transitions. [2023-12-15 23:28:52,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:28:52,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:52,280 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] [2023-12-15 23:28:52,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:28:52,280 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)] === [2023-12-15 23:28:52,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:52,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2094955992, now seen corresponding path program 1 times [2023-12-15 23:28:52,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:52,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663116093] [2023-12-15 23:28:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:52,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:52,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663116093] [2023-12-15 23:28:52,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663116093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:52,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:28:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399736127] [2023-12-15 23:28:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:28:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:28:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:28:52,413 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) [2023-12-15 23:28:52,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:52,957 INFO L93 Difference]: Finished difference Result 7124 states and 10082 transitions. [2023-12-15 23:28:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:28:52,957 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 [2023-12-15 23:28:52,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:52,969 INFO L225 Difference]: With dead ends: 7124 [2023-12-15 23:28:52,969 INFO L226 Difference]: Without dead ends: 7119 [2023-12-15 23:28:52,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:28:52,972 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1809 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:52,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1220 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:28:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2023-12-15 23:28:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 2919. [2023-12-15 23:28:53,063 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) [2023-12-15 23:28:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4045 transitions. [2023-12-15 23:28:53,067 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4045 transitions. Word has length 54 [2023-12-15 23:28:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:53,067 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4045 transitions. [2023-12-15 23:28:53,068 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) [2023-12-15 23:28:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4045 transitions. [2023-12-15 23:28:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:28:53,069 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:53,069 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] [2023-12-15 23:28:53,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:28:53,070 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)] === [2023-12-15 23:28:53,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash -544921047, now seen corresponding path program 1 times [2023-12-15 23:28:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:53,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714957361] [2023-12-15 23:28:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:53,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:53,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714957361] [2023-12-15 23:28:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714957361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:53,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:53,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439989579] [2023-12-15 23:28:53,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:53,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:53,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:53,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,109 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) [2023-12-15 23:28:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:53,143 INFO L93 Difference]: Finished difference Result 4192 states and 5856 transitions. [2023-12-15 23:28:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:53,144 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 [2023-12-15 23:28:53,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:53,147 INFO L225 Difference]: With dead ends: 4192 [2023-12-15 23:28:53,147 INFO L226 Difference]: Without dead ends: 2926 [2023-12-15 23:28:53,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,149 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 [2023-12-15 23:28:53,149 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] [2023-12-15 23:28:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2023-12-15 23:28:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2919. [2023-12-15 23:28:53,183 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) [2023-12-15 23:28:53,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4005 transitions. [2023-12-15 23:28:53,186 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4005 transitions. Word has length 55 [2023-12-15 23:28:53,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:53,187 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4005 transitions. [2023-12-15 23:28:53,187 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) [2023-12-15 23:28:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4005 transitions. [2023-12-15 23:28:53,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:28:53,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:53,189 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] [2023-12-15 23:28:53,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:28:53,189 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)] === [2023-12-15 23:28:53,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash -171324051, now seen corresponding path program 1 times [2023-12-15 23:28:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757086307] [2023-12-15 23:28:53,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757086307] [2023-12-15 23:28:53,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757086307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:53,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:53,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:53,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227898754] [2023-12-15 23:28:53,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:53,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:53,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,231 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) [2023-12-15 23:28:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:53,255 INFO L93 Difference]: Finished difference Result 4259 states and 5888 transitions. [2023-12-15 23:28:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:53,256 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 [2023-12-15 23:28:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:53,260 INFO L225 Difference]: With dead ends: 4259 [2023-12-15 23:28:53,260 INFO L226 Difference]: Without dead ends: 2925 [2023-12-15 23:28:53,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,262 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 [2023-12-15 23:28:53,263 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] [2023-12-15 23:28:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2023-12-15 23:28:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2919. [2023-12-15 23:28:53,292 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) [2023-12-15 23:28:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 3969 transitions. [2023-12-15 23:28:53,295 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 3969 transitions. Word has length 55 [2023-12-15 23:28:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:53,296 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 3969 transitions. [2023-12-15 23:28:53,296 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) [2023-12-15 23:28:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 3969 transitions. [2023-12-15 23:28:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:28:53,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:53,299 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] [2023-12-15 23:28:53,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:28:53,299 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)] === [2023-12-15 23:28:53,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1692855010, now seen corresponding path program 1 times [2023-12-15 23:28:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:53,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552912636] [2023-12-15 23:28:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:53,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:53,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552912636] [2023-12-15 23:28:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552912636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:53,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:53,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236051455] [2023-12-15 23:28:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:53,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:53,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,338 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) [2023-12-15 23:28:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:53,361 INFO L93 Difference]: Finished difference Result 4009 states and 5457 transitions. [2023-12-15 23:28:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:53,361 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 [2023-12-15 23:28:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:53,365 INFO L225 Difference]: With dead ends: 4009 [2023-12-15 23:28:53,365 INFO L226 Difference]: Without dead ends: 2910 [2023-12-15 23:28:53,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,368 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 [2023-12-15 23:28:53,368 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] [2023-12-15 23:28:53,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2023-12-15 23:28:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2904. [2023-12-15 23:28:53,395 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) [2023-12-15 23:28:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 3869 transitions. [2023-12-15 23:28:53,397 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 3869 transitions. Word has length 55 [2023-12-15 23:28:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:53,398 INFO L495 AbstractCegarLoop]: Abstraction has 2904 states and 3869 transitions. [2023-12-15 23:28:53,398 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) [2023-12-15 23:28:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 3869 transitions. [2023-12-15 23:28:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 23:28:53,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:53,400 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] [2023-12-15 23:28:53,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:28:53,400 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)] === [2023-12-15 23:28:53,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:53,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622388, now seen corresponding path program 1 times [2023-12-15 23:28:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:53,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215177066] [2023-12-15 23:28:53,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:53,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:53,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:53,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215177066] [2023-12-15 23:28:53,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215177066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:53,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:53,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:53,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481250539] [2023-12-15 23:28:53,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:53,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:53,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:53,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:53,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,433 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) [2023-12-15 23:28:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:53,477 INFO L93 Difference]: Finished difference Result 4582 states and 6151 transitions. [2023-12-15 23:28:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:53,477 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 [2023-12-15 23:28:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:53,482 INFO L225 Difference]: With dead ends: 4582 [2023-12-15 23:28:53,482 INFO L226 Difference]: Without dead ends: 3322 [2023-12-15 23:28:53,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:53,484 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 [2023-12-15 23:28:53,484 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] [2023-12-15 23:28:53,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2023-12-15 23:28:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2722. [2023-12-15 23:28:53,511 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) [2023-12-15 23:28:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3633 transitions. [2023-12-15 23:28:53,514 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3633 transitions. Word has length 56 [2023-12-15 23:28:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:53,514 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3633 transitions. [2023-12-15 23:28:53,514 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) [2023-12-15 23:28:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3633 transitions. [2023-12-15 23:28:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:28:53,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:53,516 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] [2023-12-15 23:28:53,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:28:53,517 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)] === [2023-12-15 23:28:53,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1344491359, now seen corresponding path program 1 times [2023-12-15 23:28:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:53,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622263013] [2023-12-15 23:28:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:54,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:54,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622263013] [2023-12-15 23:28:54,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622263013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:54,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:54,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-15 23:28:54,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315309262] [2023-12-15 23:28:54,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:54,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 23:28:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 23:28:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:28:54,361 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) [2023-12-15 23:28:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:56,358 INFO L93 Difference]: Finished difference Result 4373 states and 5861 transitions. [2023-12-15 23:28:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 23:28:56,359 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 [2023-12-15 23:28:56,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:56,367 INFO L225 Difference]: With dead ends: 4373 [2023-12-15 23:28:56,367 INFO L226 Difference]: Without dead ends: 4369 [2023-12-15 23:28:56,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260 [2023-12-15 23:28:56,375 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 3523 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:56,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3523 Valid, 5946 Invalid, 2998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 23:28:56,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2023-12-15 23:28:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 2722. [2023-12-15 23:28:56,437 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) [2023-12-15 23:28:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3632 transitions. [2023-12-15 23:28:56,440 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3632 transitions. Word has length 57 [2023-12-15 23:28:56,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:56,441 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3632 transitions. [2023-12-15 23:28:56,441 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) [2023-12-15 23:28:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3632 transitions. [2023-12-15 23:28:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:28:56,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:56,443 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] [2023-12-15 23:28:56,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:28:56,443 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)] === [2023-12-15 23:28:56,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash 972832554, now seen corresponding path program 1 times [2023-12-15 23:28:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:56,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160804334] [2023-12-15 23:28:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160804334] [2023-12-15 23:28:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160804334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:28:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691554193] [2023-12-15 23:28:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:56,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:28:56,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:28:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:28:56,825 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) [2023-12-15 23:28:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:57,278 INFO L93 Difference]: Finished difference Result 4882 states and 6611 transitions. [2023-12-15 23:28:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:28:57,279 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 [2023-12-15 23:28:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:57,285 INFO L225 Difference]: With dead ends: 4882 [2023-12-15 23:28:57,285 INFO L226 Difference]: Without dead ends: 4514 [2023-12-15 23:28:57,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:28:57,287 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 2479 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-12-15 23:28:57,287 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] [2023-12-15 23:28:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2023-12-15 23:28:57,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 2664. [2023-12-15 23:28:57,325 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) [2023-12-15 23:28:57,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3560 transitions. [2023-12-15 23:28:57,328 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3560 transitions. Word has length 57 [2023-12-15 23:28:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 2664 states and 3560 transitions. [2023-12-15 23:28:57,328 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) [2023-12-15 23:28:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3560 transitions. [2023-12-15 23:28:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:28:57,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:57,330 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] [2023-12-15 23:28:57,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:28:57,330 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)] === [2023-12-15 23:28:57,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash -45383322, now seen corresponding path program 1 times [2023-12-15 23:28:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:57,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563410145] [2023-12-15 23:28:57,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:57,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:57,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563410145] [2023-12-15 23:28:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563410145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:57,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:57,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:28:57,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765970683] [2023-12-15 23:28:57,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:57,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:28:57,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:57,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:28:57,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:57,367 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) [2023-12-15 23:28:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:57,416 INFO L93 Difference]: Finished difference Result 4922 states and 6630 transitions. [2023-12-15 23:28:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:28:57,416 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 [2023-12-15 23:28:57,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:57,420 INFO L225 Difference]: With dead ends: 4922 [2023-12-15 23:28:57,421 INFO L226 Difference]: Without dead ends: 3261 [2023-12-15 23:28:57,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:28:57,423 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 [2023-12-15 23:28:57,423 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] [2023-12-15 23:28:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2023-12-15 23:28:57,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 2523. [2023-12-15 23:28:57,455 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) [2023-12-15 23:28:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3380 transitions. [2023-12-15 23:28:57,458 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3380 transitions. Word has length 57 [2023-12-15 23:28:57,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:57,458 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3380 transitions. [2023-12-15 23:28:57,458 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) [2023-12-15 23:28:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3380 transitions. [2023-12-15 23:28:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 23:28:57,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:57,460 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] [2023-12-15 23:28:57,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:28:57,461 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)] === [2023-12-15 23:28:57,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1565233070, now seen corresponding path program 1 times [2023-12-15 23:28:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344429288] [2023-12-15 23:28:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:58,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:58,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344429288] [2023-12-15 23:28:58,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344429288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-15 23:28:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101702311] [2023-12-15 23:28:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:58,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 23:28:58,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 23:28:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:28:58,105 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) [2023-12-15 23:28:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:59,564 INFO L93 Difference]: Finished difference Result 4716 states and 6363 transitions. [2023-12-15 23:28:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 23:28:59,565 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 [2023-12-15 23:28:59,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:59,570 INFO L225 Difference]: With dead ends: 4716 [2023-12-15 23:28:59,570 INFO L226 Difference]: Without dead ends: 4589 [2023-12-15 23:28:59,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2023-12-15 23:28:59,571 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 [2023-12-15 23:28:59,572 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] [2023-12-15 23:28:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2023-12-15 23:28:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 2509. [2023-12-15 23:28:59,599 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) [2023-12-15 23:28:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3363 transitions. [2023-12-15 23:28:59,601 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3363 transitions. Word has length 58 [2023-12-15 23:28:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:59,601 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3363 transitions. [2023-12-15 23:28:59,601 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) [2023-12-15 23:28:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3363 transitions. [2023-12-15 23:28:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:28:59,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:59,604 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] [2023-12-15 23:28:59,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:28:59,604 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)] === [2023-12-15 23:28:59,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash -65378401, now seen corresponding path program 1 times [2023-12-15 23:28:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:59,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661648915] [2023-12-15 23:28:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:59,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:59,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661648915] [2023-12-15 23:28:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661648915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:59,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:59,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:28:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535588518] [2023-12-15 23:28:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:59,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:28:59,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:28:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:28:59,660 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) [2023-12-15 23:28:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:59,712 INFO L93 Difference]: Finished difference Result 6109 states and 8407 transitions. [2023-12-15 23:28:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:28:59,712 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 [2023-12-15 23:28:59,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:59,717 INFO L225 Difference]: With dead ends: 6109 [2023-12-15 23:28:59,717 INFO L226 Difference]: Without dead ends: 4598 [2023-12-15 23:28:59,719 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 [2023-12-15 23:28:59,719 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 [2023-12-15 23:28:59,719 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] [2023-12-15 23:28:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2023-12-15 23:28:59,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 3924. [2023-12-15 23:28:59,758 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) [2023-12-15 23:28:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5270 transitions. [2023-12-15 23:28:59,763 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5270 transitions. Word has length 67 [2023-12-15 23:28:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:59,763 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5270 transitions. [2023-12-15 23:28:59,763 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) [2023-12-15 23:28:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5270 transitions. [2023-12-15 23:28:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:28:59,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:59,767 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] [2023-12-15 23:28:59,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:28:59,767 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)] === [2023-12-15 23:28:59,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:59,768 INFO L85 PathProgramCache]: Analyzing trace with hash -510700073, now seen corresponding path program 1 times [2023-12-15 23:28:59,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:59,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155201496] [2023-12-15 23:28:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:28:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:28:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:28:59,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155201496] [2023-12-15 23:28:59,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155201496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:28:59,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:28:59,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:28:59,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428380949] [2023-12-15 23:28:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:28:59,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:28:59,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:28:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:28:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:28:59,833 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) [2023-12-15 23:28:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:28:59,896 INFO L93 Difference]: Finished difference Result 3930 states and 5273 transitions. [2023-12-15 23:28:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:28:59,896 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 [2023-12-15 23:28:59,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:28:59,900 INFO L225 Difference]: With dead ends: 3930 [2023-12-15 23:28:59,900 INFO L226 Difference]: Without dead ends: 3459 [2023-12-15 23:28:59,902 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 [2023-12-15 23:28:59,903 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 501 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:28:59,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 896 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:28:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2023-12-15 23:28:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3455. [2023-12-15 23:28:59,936 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) [2023-12-15 23:28:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4656 transitions. [2023-12-15 23:28:59,940 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4656 transitions. Word has length 68 [2023-12-15 23:28:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:28:59,940 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4656 transitions. [2023-12-15 23:28:59,941 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) [2023-12-15 23:28:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4656 transitions. [2023-12-15 23:28:59,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-15 23:28:59,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:28:59,945 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] [2023-12-15 23:28:59,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:28:59,945 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)] === [2023-12-15 23:28:59,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:28:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash 936875869, now seen corresponding path program 1 times [2023-12-15 23:28:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:28:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625227471] [2023-12-15 23:28:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:28:59,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:28:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:00,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:00,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625227471] [2023-12-15 23:29:00,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625227471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:00,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:00,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:00,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778640539] [2023-12-15 23:29:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,015 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) [2023-12-15 23:29:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:00,045 INFO L93 Difference]: Finished difference Result 8071 states and 11006 transitions. [2023-12-15 23:29:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:00,045 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 [2023-12-15 23:29:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:00,050 INFO L225 Difference]: With dead ends: 8071 [2023-12-15 23:29:00,050 INFO L226 Difference]: Without dead ends: 5445 [2023-12-15 23:29:00,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,054 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 [2023-12-15 23:29:00,054 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] [2023-12-15 23:29:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2023-12-15 23:29:00,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5127. [2023-12-15 23:29:00,158 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) [2023-12-15 23:29:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6860 transitions. [2023-12-15 23:29:00,168 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6860 transitions. Word has length 69 [2023-12-15 23:29:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:00,168 INFO L495 AbstractCegarLoop]: Abstraction has 5127 states and 6860 transitions. [2023-12-15 23:29:00,168 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) [2023-12-15 23:29:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6860 transitions. [2023-12-15 23:29:00,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:29:00,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:00,171 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] [2023-12-15 23:29:00,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:29:00,172 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)] === [2023-12-15 23:29:00,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1521240512, now seen corresponding path program 1 times [2023-12-15 23:29:00,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:00,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137879363] [2023-12-15 23:29:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:00,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137879363] [2023-12-15 23:29:00,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137879363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:00,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:00,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:00,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798572709] [2023-12-15 23:29:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:00,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:00,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:00,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,234 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) [2023-12-15 23:29:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:00,270 INFO L93 Difference]: Finished difference Result 13247 states and 17962 transitions. [2023-12-15 23:29:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:00,270 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 [2023-12-15 23:29:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:00,278 INFO L225 Difference]: With dead ends: 13247 [2023-12-15 23:29:00,279 INFO L226 Difference]: Without dead ends: 8987 [2023-12-15 23:29:00,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,284 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 [2023-12-15 23:29:00,284 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] [2023-12-15 23:29:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8987 states. [2023-12-15 23:29:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8987 to 8249. [2023-12-15 23:29:00,364 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) [2023-12-15 23:29:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8249 states to 8249 states and 11050 transitions. [2023-12-15 23:29:00,374 INFO L78 Accepts]: Start accepts. Automaton has 8249 states and 11050 transitions. Word has length 70 [2023-12-15 23:29:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:00,374 INFO L495 AbstractCegarLoop]: Abstraction has 8249 states and 11050 transitions. [2023-12-15 23:29:00,375 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) [2023-12-15 23:29:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8249 states and 11050 transitions. [2023-12-15 23:29:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:29:00,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:00,377 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] [2023-12-15 23:29:00,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:29:00,378 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)] === [2023-12-15 23:29:00,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:00,378 INFO L85 PathProgramCache]: Analyzing trace with hash -665898309, now seen corresponding path program 1 times [2023-12-15 23:29:00,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:00,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272466946] [2023-12-15 23:29:00,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:00,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:00,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272466946] [2023-12-15 23:29:00,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272466946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:00,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264822009] [2023-12-15 23:29:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:00,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:00,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,438 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) [2023-12-15 23:29:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:00,496 INFO L93 Difference]: Finished difference Result 22213 states and 29924 transitions. [2023-12-15 23:29:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:00,497 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 [2023-12-15 23:29:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:00,514 INFO L225 Difference]: With dead ends: 22213 [2023-12-15 23:29:00,514 INFO L226 Difference]: Without dead ends: 14831 [2023-12-15 23:29:00,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:00,524 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 [2023-12-15 23:29:00,527 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] [2023-12-15 23:29:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2023-12-15 23:29:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 13613. [2023-12-15 23:29:00,755 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) [2023-12-15 23:29:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13613 states to 13613 states and 18150 transitions. [2023-12-15 23:29:00,774 INFO L78 Accepts]: Start accepts. Automaton has 13613 states and 18150 transitions. Word has length 72 [2023-12-15 23:29:00,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:00,775 INFO L495 AbstractCegarLoop]: Abstraction has 13613 states and 18150 transitions. [2023-12-15 23:29:00,775 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) [2023-12-15 23:29:00,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13613 states and 18150 transitions. [2023-12-15 23:29:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:29:00,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:00,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:00,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:29:00,778 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)] === [2023-12-15 23:29:00,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:00,778 INFO L85 PathProgramCache]: Analyzing trace with hash 93568553, now seen corresponding path program 1 times [2023-12-15 23:29:00,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:00,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563908201] [2023-12-15 23:29:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:00,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563908201] [2023-12-15 23:29:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563908201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:00,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:00,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:29:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93500212] [2023-12-15 23:29:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:00,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:29:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:29:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:29:00,970 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) [2023-12-15 23:29:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:01,093 INFO L93 Difference]: Finished difference Result 29123 states and 38269 transitions. [2023-12-15 23:29:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:29:01,094 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 [2023-12-15 23:29:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:01,134 INFO L225 Difference]: With dead ends: 29123 [2023-12-15 23:29:01,135 INFO L226 Difference]: Without dead ends: 29121 [2023-12-15 23:29:01,146 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 [2023-12-15 23:29:01,147 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 [2023-12-15 23:29:01,148 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] [2023-12-15 23:29:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2023-12-15 23:29:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 14957. [2023-12-15 23:29:01,411 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) [2023-12-15 23:29:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14957 states to 14957 states and 19494 transitions. [2023-12-15 23:29:01,435 INFO L78 Accepts]: Start accepts. Automaton has 14957 states and 19494 transitions. Word has length 74 [2023-12-15 23:29:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:01,435 INFO L495 AbstractCegarLoop]: Abstraction has 14957 states and 19494 transitions. [2023-12-15 23:29:01,436 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) [2023-12-15 23:29:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 14957 states and 19494 transitions. [2023-12-15 23:29:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:29:01,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:01,439 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] [2023-12-15 23:29:01,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:29:01,440 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)] === [2023-12-15 23:29:01,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1179448625, now seen corresponding path program 1 times [2023-12-15 23:29:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380674433] [2023-12-15 23:29:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:01,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:01,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380674433] [2023-12-15 23:29:01,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380674433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:01,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:01,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:29:01,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378560326] [2023-12-15 23:29:01,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:01,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:29:01,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:01,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:29:01,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:01,480 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) [2023-12-15 23:29:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:01,653 INFO L93 Difference]: Finished difference Result 36153 states and 47088 transitions. [2023-12-15 23:29:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:29:01,653 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 [2023-12-15 23:29:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:01,680 INFO L225 Difference]: With dead ends: 36153 [2023-12-15 23:29:01,680 INFO L226 Difference]: Without dead ends: 22063 [2023-12-15 23:29:01,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:29:01,690 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 [2023-12-15 23:29:01,690 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] [2023-12-15 23:29:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22063 states. [2023-12-15 23:29:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22063 to 22061. [2023-12-15 23:29:01,911 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) [2023-12-15 23:29:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22061 states to 22061 states and 28374 transitions. [2023-12-15 23:29:01,940 INFO L78 Accepts]: Start accepts. Automaton has 22061 states and 28374 transitions. Word has length 75 [2023-12-15 23:29:01,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:01,940 INFO L495 AbstractCegarLoop]: Abstraction has 22061 states and 28374 transitions. [2023-12-15 23:29:01,940 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) [2023-12-15 23:29:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 22061 states and 28374 transitions. [2023-12-15 23:29:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 23:29:01,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:01,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:01,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:29:01,943 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)] === [2023-12-15 23:29:01,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:01,943 INFO L85 PathProgramCache]: Analyzing trace with hash 667979649, now seen corresponding path program 1 times [2023-12-15 23:29:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325428519] [2023-12-15 23:29:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:02,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:02,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325428519] [2023-12-15 23:29:02,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325428519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:02,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:02,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:29:02,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646968282] [2023-12-15 23:29:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:02,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:29:02,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:02,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:29:02,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:29:02,010 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) [2023-12-15 23:29:02,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:02,125 INFO L93 Difference]: Finished difference Result 32519 states and 42077 transitions. [2023-12-15 23:29:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:29:02,125 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 [2023-12-15 23:29:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:02,159 INFO L225 Difference]: With dead ends: 32519 [2023-12-15 23:29:02,159 INFO L226 Difference]: Without dead ends: 27657 [2023-12-15 23:29:02,172 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 [2023-12-15 23:29:02,172 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 [2023-12-15 23:29:02,173 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] [2023-12-15 23:29:02,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27657 states. [2023-12-15 23:29:02,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27657 to 25215. [2023-12-15 23:29:02,689 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) [2023-12-15 23:29:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25215 states to 25215 states and 32365 transitions. [2023-12-15 23:29:02,728 INFO L78 Accepts]: Start accepts. Automaton has 25215 states and 32365 transitions. Word has length 76 [2023-12-15 23:29:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:02,728 INFO L495 AbstractCegarLoop]: Abstraction has 25215 states and 32365 transitions. [2023-12-15 23:29:02,728 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) [2023-12-15 23:29:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 25215 states and 32365 transitions. [2023-12-15 23:29:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 23:29:02,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:02,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:29:02,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:29:02,731 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)] === [2023-12-15 23:29:02,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1316845845, now seen corresponding path program 1 times [2023-12-15 23:29:02,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:02,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643119400] [2023-12-15 23:29:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:02,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:02,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:02,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643119400] [2023-12-15 23:29:02,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643119400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:02,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:02,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:29:02,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431803725] [2023-12-15 23:29:02,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:02,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:29:02,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:02,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:29:02,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:29:02,799 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) [2023-12-15 23:29:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:02,918 INFO L93 Difference]: Finished difference Result 33923 states and 43753 transitions. [2023-12-15 23:29:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:29:02,918 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 [2023-12-15 23:29:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:02,959 INFO L225 Difference]: With dead ends: 33923 [2023-12-15 23:29:02,959 INFO L226 Difference]: Without dead ends: 29157 [2023-12-15 23:29:03,059 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 [2023-12-15 23:29:03,059 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 [2023-12-15 23:29:03,059 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] [2023-12-15 23:29:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29157 states. [2023-12-15 23:29:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29157 to 28311. [2023-12-15 23:29:03,376 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) [2023-12-15 23:29:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28311 states to 28311 states and 36273 transitions. [2023-12-15 23:29:03,417 INFO L78 Accepts]: Start accepts. Automaton has 28311 states and 36273 transitions. Word has length 78 [2023-12-15 23:29:03,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:03,417 INFO L495 AbstractCegarLoop]: Abstraction has 28311 states and 36273 transitions. [2023-12-15 23:29:03,417 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) [2023-12-15 23:29:03,417 INFO L276 IsEmpty]: Start isEmpty. Operand 28311 states and 36273 transitions. [2023-12-15 23:29:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 23:29:03,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:03,425 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] [2023-12-15 23:29:03,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-15 23:29:03,426 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)] === [2023-12-15 23:29:03,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:03,427 INFO L85 PathProgramCache]: Analyzing trace with hash 710675695, now seen corresponding path program 1 times [2023-12-15 23:29:03,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:03,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561372296] [2023-12-15 23:29:03,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:03,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 23:29:03,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:03,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561372296] [2023-12-15 23:29:03,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561372296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:03,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:03,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:29:03,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455702206] [2023-12-15 23:29:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:03,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:29:03,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:29:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:29:03,689 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) [2023-12-15 23:29:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:04,278 INFO L93 Difference]: Finished difference Result 65136 states and 83085 transitions. [2023-12-15 23:29:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:29:04,279 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 [2023-12-15 23:29:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:04,417 INFO L225 Difference]: With dead ends: 65136 [2023-12-15 23:29:04,418 INFO L226 Difference]: Without dead ends: 46342 [2023-12-15 23:29:04,432 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 [2023-12-15 23:29:04,433 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 786 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:04,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1221 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:29:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46342 states. [2023-12-15 23:29:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46342 to 28179. [2023-12-15 23:29:04,807 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) [2023-12-15 23:29:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28179 states to 28179 states and 36113 transitions. [2023-12-15 23:29:04,844 INFO L78 Accepts]: Start accepts. Automaton has 28179 states and 36113 transitions. Word has length 94 [2023-12-15 23:29:04,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:04,844 INFO L495 AbstractCegarLoop]: Abstraction has 28179 states and 36113 transitions. [2023-12-15 23:29:04,845 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) [2023-12-15 23:29:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 28179 states and 36113 transitions. [2023-12-15 23:29:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 23:29:04,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:04,851 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] [2023-12-15 23:29:04,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-15 23:29:04,851 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)] === [2023-12-15 23:29:04,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -212725949, now seen corresponding path program 1 times [2023-12-15 23:29:04,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:04,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282178873] [2023-12-15 23:29:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:04,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:05,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 23:29:05,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:05,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282178873] [2023-12-15 23:29:05,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282178873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:05,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:29:05,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:29:05,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096787834] [2023-12-15 23:29:05,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:05,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:29:05,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:05,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:29:05,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:29:05,097 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) [2023-12-15 23:29:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:05,678 INFO L93 Difference]: Finished difference Result 83470 states and 106772 transitions. [2023-12-15 23:29:05,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:29:05,679 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 [2023-12-15 23:29:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:05,873 INFO L225 Difference]: With dead ends: 83470 [2023-12-15 23:29:05,874 INFO L226 Difference]: Without dead ends: 69581 [2023-12-15 23:29:05,890 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 [2023-12-15 23:29:05,896 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 881 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:05,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1327 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:29:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69581 states. [2023-12-15 23:29:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69581 to 28125. [2023-12-15 23:29:06,445 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) [2023-12-15 23:29:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28125 states to 28125 states and 36046 transitions. [2023-12-15 23:29:06,483 INFO L78 Accepts]: Start accepts. Automaton has 28125 states and 36046 transitions. Word has length 94 [2023-12-15 23:29:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:06,483 INFO L495 AbstractCegarLoop]: Abstraction has 28125 states and 36046 transitions. [2023-12-15 23:29:06,484 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) [2023-12-15 23:29:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand 28125 states and 36046 transitions. [2023-12-15 23:29:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 23:29:06,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:06,490 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] [2023-12-15 23:29:06,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-15 23:29:06,491 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)] === [2023-12-15 23:29:06,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:06,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1761500302, now seen corresponding path program 1 times [2023-12-15 23:29:06,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:06,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303769177] [2023-12-15 23:29:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:06,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:06,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303769177] [2023-12-15 23:29:06,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303769177] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:29:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727551043] [2023-12-15 23:29:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:29:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:29:06,823 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) [2023-12-15 23:29:06,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 23:29:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:07,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 23:29:07,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:29:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:07,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:29:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:08,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727551043] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:29:08,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:29:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-12-15 23:29:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747280148] [2023-12-15 23:29:08,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:29:08,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-15 23:29:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:08,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-15 23:29:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2023-12-15 23:29:08,642 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) [2023-12-15 23:29:28,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:28,473 INFO L93 Difference]: Finished difference Result 295168 states and 370314 transitions. [2023-12-15 23:29:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2023-12-15 23:29:28,474 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 95 [2023-12-15 23:29:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:28,901 INFO L225 Difference]: With dead ends: 295168 [2023-12-15 23:29:28,901 INFO L226 Difference]: Without dead ends: 284618 [2023-12-15 23:29:28,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36547 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=12677, Invalid=76425, Unknown=0, NotChecked=0, Total=89102 [2023-12-15 23:29:28,947 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 7541 mSDsluCounter, 9946 mSDsCounter, 0 mSdLazyCounter, 9912 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7541 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 10050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 9912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:28,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7541 Valid, 10387 Invalid, 10050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [138 Valid, 9912 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-15 23:29:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284618 states. [2023-12-15 23:29:30,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284618 to 28514. [2023-12-15 23:29:30,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28514 states, 28513 states have (on average 1.2810297057482551) internal successors, (36526), 28513 states have internal predecessors, (36526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28514 states to 28514 states and 36526 transitions. [2023-12-15 23:29:30,594 INFO L78 Accepts]: Start accepts. Automaton has 28514 states and 36526 transitions. Word has length 95 [2023-12-15 23:29:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:30,595 INFO L495 AbstractCegarLoop]: Abstraction has 28514 states and 36526 transitions. [2023-12-15 23:29:30,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-12-15 23:29:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 28514 states and 36526 transitions. [2023-12-15 23:29:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 23:29:30,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:30,626 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] [2023-12-15 23:29:30,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 23:29:30,826 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 [2023-12-15 23:29:30,827 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:30,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1978925782, now seen corresponding path program 1 times [2023-12-15 23:29:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:30,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441786753] [2023-12-15 23:29:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:31,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:31,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441786753] [2023-12-15 23:29:31,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441786753] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:29:31,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899361207] [2023-12-15 23:29:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:31,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:29:31,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:29:31,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:29:31,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 23:29:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:31,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-15 23:29:31,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:29:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:31,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 23:29:31,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899361207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:29:31,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 23:29:31,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 15 [2023-12-15 23:29:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704801859] [2023-12-15 23:29:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:29:31,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 23:29:31,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:31,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 23:29:31,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:29:31,966 INFO L87 Difference]: Start difference. First operand 28514 states and 36526 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:29:34,023 INFO L93 Difference]: Finished difference Result 135917 states and 173435 transitions. [2023-12-15 23:29:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-15 23:29:34,023 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-15 23:29:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:29:34,184 INFO L225 Difference]: With dead ends: 135917 [2023-12-15 23:29:34,184 INFO L226 Difference]: Without dead ends: 121887 [2023-12-15 23:29:34,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=607, Invalid=2255, Unknown=0, NotChecked=0, Total=2862 [2023-12-15 23:29:34,243 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 2788 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2788 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:34,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2788 Valid, 3079 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 23:29:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121887 states. [2023-12-15 23:29:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121887 to 47537. [2023-12-15 23:29:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47537 states, 47536 states have (on average 1.281239481656008) internal successors, (60905), 47536 states have internal predecessors, (60905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47537 states to 47537 states and 60905 transitions. [2023-12-15 23:29:35,331 INFO L78 Accepts]: Start accepts. Automaton has 47537 states and 60905 transitions. Word has length 95 [2023-12-15 23:29:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:29:35,332 INFO L495 AbstractCegarLoop]: Abstraction has 47537 states and 60905 transitions. [2023-12-15 23:29:35,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:29:35,336 INFO L276 IsEmpty]: Start isEmpty. Operand 47537 states and 60905 transitions. [2023-12-15 23:29:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 23:29:35,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:29:35,360 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] [2023-12-15 23:29:35,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 23:29:35,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-15 23:29:35,566 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-15 23:29:35,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:29:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash 392705784, now seen corresponding path program 1 times [2023-12-15 23:29:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:29:35,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48634102] [2023-12-15 23:29:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:29:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:36,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:29:36,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48634102] [2023-12-15 23:29:36,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48634102] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:29:36,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273440142] [2023-12-15 23:29:36,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:29:36,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:29:36,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:29:36,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:29:36,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 23:29:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:29:36,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-15 23:29:36,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:29:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:36,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:29:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:29:37,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273440142] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:29:37,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:29:37,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 29 [2023-12-15 23:29:37,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612083354] [2023-12-15 23:29:37,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:29:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-15 23:29:37,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:29:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-15 23:29:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2023-12-15 23:29:37,494 INFO L87 Difference]: Start difference. First operand 47537 states and 60905 transitions. Second operand has 30 states, 30 states have (on average 8.533333333333333) internal successors, (256), 29 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-15 23:29:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-12-15 23:29:42,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4198 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2505, Invalid=10835, Unknown=0, NotChecked=0, Total=13340 [2023-12-15 23:29:42,831 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 5163 mSDsluCounter, 4395 mSDsCounter, 0 mSdLazyCounter, 4098 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 4209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 4098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:29:42,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5163 Valid, 4673 Invalid, 4209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 4098 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 23:29:42,835 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-15 23:29:42,840 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:29:42,840 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:29:42,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 23:29:43,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:29:43,041 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (47537states) and FLOYD_HOARE automaton (currently 88 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-15 23:29:43,043 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-12-15 23:29:43,043 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-12-15 23:29:43,043 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-12-15 23:29:43,045 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, 1, 1] [2023-12-15 23:29:43,047 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:29:43,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:29:43 BoogieIcfgContainer [2023-12-15 23:29:43,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:29:43,048 INFO L158 Benchmark]: Toolchain (without parser) took 58900.82ms. Allocated memory was 178.3MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 125.1MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 131.9MB in the end (delta: 135.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.84ms. Allocated memory was 178.3MB in the beginning and 269.5MB in the end (delta: 91.2MB). Free memory was 124.8MB in the beginning and 219.1MB in the end (delta: -94.3MB). Peak memory consumption was 42.1MB. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.53ms. Allocated memory is still 269.5MB. Free memory was 219.1MB in the beginning and 208.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: Boogie Preprocessor took 135.16ms. Allocated memory is still 269.5MB. Free memory was 208.1MB in the beginning and 197.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: RCFGBuilder took 1298.60ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 203.3MB in the end (delta: -6.3MB). Peak memory consumption was 123.7MB. Max. memory is 8.0GB. [2023-12-15 23:29:43,049 INFO L158 Benchmark]: TraceAbstraction took 56637.20ms. Allocated memory was 269.5MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 202.3MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-15 23:29:43,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 131.9MB in the end (delta: 135.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 724.84ms. Allocated memory was 178.3MB in the beginning and 269.5MB in the end (delta: 91.2MB). Free memory was 124.8MB in the beginning and 219.1MB in the end (delta: -94.3MB). Peak memory consumption was 42.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 99.53ms. Allocated memory is still 269.5MB. Free memory was 219.1MB in the beginning and 208.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 135.16ms. Allocated memory is still 269.5MB. Free memory was 208.1MB in the beginning and 197.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1298.60ms. Allocated memory is still 269.5MB. Free memory was 197.1MB in the beginning and 203.3MB in the end (delta: -6.3MB). Peak memory consumption was 123.7MB. Max. memory is 8.0GB. * TraceAbstraction took 56637.20ms. Allocated memory was 269.5MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 202.3MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.0GB. 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 (47537states) and FLOYD_HOARE automaton (currently 88 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - 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 (47537states) and FLOYD_HOARE automaton (currently 88 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - 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 (47537states) and FLOYD_HOARE automaton (currently 88 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - 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 (47537states) and FLOYD_HOARE automaton (currently 88 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-11-2-2-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 455 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 34, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 38.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49479 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49479 mSDsluCounter, 52565 SdHoareTripleChecker+Invalid, 12.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39570 mSDsCounter, 719 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28519 IncrementalHoareTripleChecker+Invalid, 29238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 719 mSolverCounterUnsat, 12995 mSDtfsCounter, 28519 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1182 GetRequests, 470 SyntacticMatches, 2 SemanticMatches, 709 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42017 ImplicationChecksByTransitivity, 20.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47537occurred in iteration=33, InterpolantAutomatonStates: 545, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.7s AutomataMinimizationTime, 33 MinimizatonAttempts, 448383 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 2482 NumberOfCodeBlocks, 2482 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2633 ConstructedInterpolants, 0 QuantifiedInterpolants, 20020 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1609 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 39 InterpolantComputations, 32 PerfectInterpolantSequences, 75/100 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