/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:23:08,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:23:08,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:23:08,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:23:08,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:23:08,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:23:08,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:23:08,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:23:08,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:23:08,622 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:23:08,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:23:08,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:23:08,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:23:08,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:23:08,628 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:23:08,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:23:08,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:23:08,629 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:23:08,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:23:08,629 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:23:08,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:23:08,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:23:08,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:23:08,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:23:08,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:23:08,633 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:23:08,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:23:08,634 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:23:08,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:23:08,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:23:08,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:23:08,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:23:08,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:23:08,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:23:08,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:23:08,639 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:23:08,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:23:08,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:23:08,639 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:23:08,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:23:08,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:23:08,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:23:08,887 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:23:08,888 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:23:08,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:23:10,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:23:10,889 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:23:10,889 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:23:10,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7726016a0/bd5b7c6bacaa4da995d27e709f14f1f9/FLAGa40aa76bd [2023-12-16 06:23:10,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7726016a0/bd5b7c6bacaa4da995d27e709f14f1f9 [2023-12-16 06:23:10,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:23:10,921 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:23:10,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:23:10,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:23:10,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:23:10,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:23:10" (1/1) ... [2023-12-16 06:23:10,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa8da49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:10, skipping insertion in model container [2023-12-16 06:23:10,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:23:10" (1/1) ... [2023-12-16 06:23:10,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:23:11,186 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-16 06:23:11,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:23:11,270 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:23:11,343 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-16 06:23:11,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:23:11,407 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:23:11,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11 WrapperNode [2023-12-16 06:23:11,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:23:11,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:23:11,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:23:11,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:23:11,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,488 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 843 [2023-12-16 06:23:11,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:23:11,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:23:11,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:23:11,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:23:11,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,524 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 06:23:11,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:23:11,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:23:11,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:23:11,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:23:11,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (1/1) ... [2023-12-16 06:23:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:23:11,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:23:11,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:23:11,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:23:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:23:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:23:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:23:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:23:11,789 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:23:11,791 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:23:12,447 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:23:12,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:23:12,478 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:23:12,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:23:12 BoogieIcfgContainer [2023-12-16 06:23:12,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:23:12,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:23:12,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:23:12,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:23:12,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:23:10" (1/3) ... [2023-12-16 06:23:12,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71395993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:23:12, skipping insertion in model container [2023-12-16 06:23:12,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:23:11" (2/3) ... [2023-12-16 06:23:12,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71395993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:23:12, skipping insertion in model container [2023-12-16 06:23:12,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:23:12" (3/3) ... [2023-12-16 06:23:12,486 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:23:12,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:23:12,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:23:12,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:23:12,554 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;@6c2e5e52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:23:12,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:23:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 06:23:12,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:12,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:12,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:12,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1634056533, now seen corresponding path program 1 times [2023-12-16 06:23:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304065710] [2023-12-16 06:23:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:12,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:13,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:13,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304065710] [2023-12-16 06:23:13,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304065710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:13,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:13,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467907424] [2023-12-16 06:23:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:13,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:13,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:13,230 INFO L87 Difference]: Start difference. First operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:13,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:13,523 INFO L93 Difference]: Finished difference Result 821 states and 1333 transitions. [2023-12-16 06:23:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:13,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2023-12-16 06:23:13,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:13,546 INFO L225 Difference]: With dead ends: 821 [2023-12-16 06:23:13,547 INFO L226 Difference]: Without dead ends: 713 [2023-12-16 06:23:13,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:13,556 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 2302 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:13,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 2393 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:13,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-12-16 06:23:13,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 314. [2023-12-16 06:23:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.4984025559105432) internal successors, (469), 313 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:13,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 469 transitions. [2023-12-16 06:23:13,639 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 469 transitions. Word has length 79 [2023-12-16 06:23:13,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:13,640 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 469 transitions. [2023-12-16 06:23:13,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 469 transitions. [2023-12-16 06:23:13,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 06:23:13,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:13,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:13,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:23:13,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:13,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash 622436384, now seen corresponding path program 1 times [2023-12-16 06:23:13,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:13,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156724419] [2023-12-16 06:23:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:13,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:13,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:13,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156724419] [2023-12-16 06:23:13,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156724419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:13,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:13,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:13,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629727347] [2023-12-16 06:23:13,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:13,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:13,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:13,945 INFO L87 Difference]: Start difference. First operand 314 states and 469 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:14,145 INFO L93 Difference]: Finished difference Result 1370 states and 2112 transitions. [2023-12-16 06:23:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:14,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-16 06:23:14,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:14,151 INFO L225 Difference]: With dead ends: 1370 [2023-12-16 06:23:14,151 INFO L226 Difference]: Without dead ends: 1132 [2023-12-16 06:23:14,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:14,156 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1386 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:14,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1337 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-16 06:23:14,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2023-12-16 06:23:14,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.5369545859305431) internal successors, (1726), 1123 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1726 transitions. [2023-12-16 06:23:14,200 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1726 transitions. Word has length 80 [2023-12-16 06:23:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:14,201 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1726 transitions. [2023-12-16 06:23:14,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1726 transitions. [2023-12-16 06:23:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:14,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:14,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:14,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:23:14,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:14,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2000650849, now seen corresponding path program 1 times [2023-12-16 06:23:14,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:14,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395129056] [2023-12-16 06:23:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:14,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:14,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:14,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395129056] [2023-12-16 06:23:14,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395129056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:14,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:14,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:14,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430526831] [2023-12-16 06:23:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:14,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:14,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:14,366 INFO L87 Difference]: Start difference. First operand 1124 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:14,603 INFO L93 Difference]: Finished difference Result 3048 states and 4736 transitions. [2023-12-16 06:23:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:14,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-16 06:23:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:14,612 INFO L225 Difference]: With dead ends: 3048 [2023-12-16 06:23:14,612 INFO L226 Difference]: Without dead ends: 1978 [2023-12-16 06:23:14,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:14,620 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1144 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:14,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 279 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2023-12-16 06:23:14,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1976. [2023-12-16 06:23:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.5458227848101267) internal successors, (3053), 1975 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 3053 transitions. [2023-12-16 06:23:14,665 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 3053 transitions. Word has length 81 [2023-12-16 06:23:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:14,672 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 3053 transitions. [2023-12-16 06:23:14,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 3053 transitions. [2023-12-16 06:23:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:14,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:14,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:14,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:23:14,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:14,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:14,681 INFO L85 PathProgramCache]: Analyzing trace with hash -989088912, now seen corresponding path program 1 times [2023-12-16 06:23:14,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:14,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504473446] [2023-12-16 06:23:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:14,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:14,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:14,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504473446] [2023-12-16 06:23:14,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504473446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:14,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:14,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165330451] [2023-12-16 06:23:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:14,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:14,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:14,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:14,872 INFO L87 Difference]: Start difference. First operand 1976 states and 3053 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:15,108 INFO L93 Difference]: Finished difference Result 5483 states and 8532 transitions. [2023-12-16 06:23:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:15,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-16 06:23:15,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:15,121 INFO L225 Difference]: With dead ends: 5483 [2023-12-16 06:23:15,122 INFO L226 Difference]: Without dead ends: 3584 [2023-12-16 06:23:15,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:15,130 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1102 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:15,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 283 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2023-12-16 06:23:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3582. [2023-12-16 06:23:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 1.5467746439542027) internal successors, (5539), 3581 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5539 transitions. [2023-12-16 06:23:15,209 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5539 transitions. Word has length 81 [2023-12-16 06:23:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:15,211 INFO L495 AbstractCegarLoop]: Abstraction has 3582 states and 5539 transitions. [2023-12-16 06:23:15,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5539 transitions. [2023-12-16 06:23:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:15,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:15,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:15,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:23:15,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:15,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:15,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1940012974, now seen corresponding path program 1 times [2023-12-16 06:23:15,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:15,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118408444] [2023-12-16 06:23:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:15,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:15,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118408444] [2023-12-16 06:23:15,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118408444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:15,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:15,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:15,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781472767] [2023-12-16 06:23:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:15,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:15,350 INFO L87 Difference]: Start difference. First operand 3582 states and 5539 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:15,576 INFO L93 Difference]: Finished difference Result 10065 states and 15648 transitions. [2023-12-16 06:23:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:15,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-16 06:23:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:15,601 INFO L225 Difference]: With dead ends: 10065 [2023-12-16 06:23:15,601 INFO L226 Difference]: Without dead ends: 6624 [2023-12-16 06:23:15,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:15,609 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1056 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:15,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 294 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6624 states. [2023-12-16 06:23:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6624 to 6622. [2023-12-16 06:23:15,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6622 states, 6621 states have (on average 1.5468962392387857) internal successors, (10242), 6621 states have internal predecessors, (10242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6622 states to 6622 states and 10242 transitions. [2023-12-16 06:23:15,817 INFO L78 Accepts]: Start accepts. Automaton has 6622 states and 10242 transitions. Word has length 81 [2023-12-16 06:23:15,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:15,818 INFO L495 AbstractCegarLoop]: Abstraction has 6622 states and 10242 transitions. [2023-12-16 06:23:15,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6622 states and 10242 transitions. [2023-12-16 06:23:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:23:15,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:15,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:15,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:23:15,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:15,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:15,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1681104641, now seen corresponding path program 1 times [2023-12-16 06:23:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980657194] [2023-12-16 06:23:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:15,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:15,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980657194] [2023-12-16 06:23:15,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980657194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:15,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:15,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:15,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741318708] [2023-12-16 06:23:15,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:15,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:15,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:15,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:15,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:15,941 INFO L87 Difference]: Start difference. First operand 6622 states and 10242 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:16,184 INFO L93 Difference]: Finished difference Result 19243 states and 29833 transitions. [2023-12-16 06:23:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-16 06:23:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:16,245 INFO L225 Difference]: With dead ends: 19243 [2023-12-16 06:23:16,245 INFO L226 Difference]: Without dead ends: 12728 [2023-12-16 06:23:16,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:16,259 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1058 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:16,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 285 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12728 states. [2023-12-16 06:23:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12728 to 12726. [2023-12-16 06:23:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12726 states, 12725 states have (on average 1.541925343811395) internal successors, (19621), 12725 states have internal predecessors, (19621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19621 transitions. [2023-12-16 06:23:16,555 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19621 transitions. Word has length 81 [2023-12-16 06:23:16,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:16,555 INFO L495 AbstractCegarLoop]: Abstraction has 12726 states and 19621 transitions. [2023-12-16 06:23:16,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:16,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19621 transitions. [2023-12-16 06:23:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:23:16,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:16,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:16,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:23:16,560 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:16,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -220051672, now seen corresponding path program 1 times [2023-12-16 06:23:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585605606] [2023-12-16 06:23:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:16,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:16,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:16,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585605606] [2023-12-16 06:23:16,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585605606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:16,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:16,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:16,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122092470] [2023-12-16 06:23:16,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:16,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:16,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:16,778 INFO L87 Difference]: Start difference. First operand 12726 states and 19621 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:17,069 INFO L93 Difference]: Finished difference Result 35616 states and 54997 transitions. [2023-12-16 06:23:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:23:17,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-16 06:23:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:17,120 INFO L225 Difference]: With dead ends: 35616 [2023-12-16 06:23:17,121 INFO L226 Difference]: Without dead ends: 22953 [2023-12-16 06:23:17,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:17,145 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1155 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:17,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 284 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22953 states. [2023-12-16 06:23:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22953 to 22951. [2023-12-16 06:23:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22951 states, 22950 states have (on average 1.5374727668845316) internal successors, (35285), 22950 states have internal predecessors, (35285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22951 states to 22951 states and 35285 transitions. [2023-12-16 06:23:17,614 INFO L78 Accepts]: Start accepts. Automaton has 22951 states and 35285 transitions. Word has length 82 [2023-12-16 06:23:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:17,614 INFO L495 AbstractCegarLoop]: Abstraction has 22951 states and 35285 transitions. [2023-12-16 06:23:17,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 22951 states and 35285 transitions. [2023-12-16 06:23:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:23:17,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:17,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:17,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:23:17,620 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:17,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash 361903276, now seen corresponding path program 1 times [2023-12-16 06:23:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770491399] [2023-12-16 06:23:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:17,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770491399] [2023-12-16 06:23:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770491399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:17,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:17,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:23:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231887983] [2023-12-16 06:23:17,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:17,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:23:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:17,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:23:17,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:23:17,889 INFO L87 Difference]: Start difference. First operand 22951 states and 35285 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:18,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:18,108 INFO L93 Difference]: Finished difference Result 45673 states and 69974 transitions. [2023-12-16 06:23:18,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:23:18,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-16 06:23:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:18,303 INFO L225 Difference]: With dead ends: 45673 [2023-12-16 06:23:18,303 INFO L226 Difference]: Without dead ends: 45671 [2023-12-16 06:23:18,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:23:18,320 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 286 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:18,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1176 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45671 states. [2023-12-16 06:23:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45671 to 23527. [2023-12-16 06:23:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23527 states, 23526 states have (on average 1.524313525461192) internal successors, (35861), 23526 states have internal predecessors, (35861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23527 states to 23527 states and 35861 transitions. [2023-12-16 06:23:18,943 INFO L78 Accepts]: Start accepts. Automaton has 23527 states and 35861 transitions. Word has length 82 [2023-12-16 06:23:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:18,943 INFO L495 AbstractCegarLoop]: Abstraction has 23527 states and 35861 transitions. [2023-12-16 06:23:18,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 23527 states and 35861 transitions. [2023-12-16 06:23:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 06:23:18,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:18,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:18,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:23:18,952 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:18,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1405559403, now seen corresponding path program 1 times [2023-12-16 06:23:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:18,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139684425] [2023-12-16 06:23:18,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:18,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:19,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:19,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139684425] [2023-12-16 06:23:19,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139684425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:19,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:19,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:23:19,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009711724] [2023-12-16 06:23:19,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:19,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:23:19,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:23:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:23:19,276 INFO L87 Difference]: Start difference. First operand 23527 states and 35861 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:19,569 INFO L93 Difference]: Finished difference Result 65931 states and 100223 transitions. [2023-12-16 06:23:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:23:19,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-16 06:23:19,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:19,674 INFO L225 Difference]: With dead ends: 65931 [2023-12-16 06:23:19,675 INFO L226 Difference]: Without dead ends: 43209 [2023-12-16 06:23:19,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:23:19,710 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 192 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:19,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 609 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43209 states. [2023-12-16 06:23:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43209 to 43207. [2023-12-16 06:23:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43207 states, 43206 states have (on average 1.5104615099754664) internal successors, (65261), 43206 states have internal predecessors, (65261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43207 states to 43207 states and 65261 transitions. [2023-12-16 06:23:20,504 INFO L78 Accepts]: Start accepts. Automaton has 43207 states and 65261 transitions. Word has length 83 [2023-12-16 06:23:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:20,505 INFO L495 AbstractCegarLoop]: Abstraction has 43207 states and 65261 transitions. [2023-12-16 06:23:20,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43207 states and 65261 transitions. [2023-12-16 06:23:20,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:20,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:20,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:20,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:23:20,514 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:20,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2050104330, now seen corresponding path program 1 times [2023-12-16 06:23:20,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:20,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359172248] [2023-12-16 06:23:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:20,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:20,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359172248] [2023-12-16 06:23:20,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359172248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:20,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:20,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:20,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10994267] [2023-12-16 06:23:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:20,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:20,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:20,586 INFO L87 Difference]: Start difference. First operand 43207 states and 65261 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:21,050 INFO L93 Difference]: Finished difference Result 99074 states and 149694 transitions. [2023-12-16 06:23:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:21,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:21,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:21,508 INFO L225 Difference]: With dead ends: 99074 [2023-12-16 06:23:21,509 INFO L226 Difference]: Without dead ends: 60624 [2023-12-16 06:23:21,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:21,549 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:21,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60624 states. [2023-12-16 06:23:22,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60624 to 43037. [2023-12-16 06:23:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43037 states, 43036 states have (on average 1.4981643275397343) internal successors, (64475), 43036 states have internal predecessors, (64475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43037 states to 43037 states and 64475 transitions. [2023-12-16 06:23:22,614 INFO L78 Accepts]: Start accepts. Automaton has 43037 states and 64475 transitions. Word has length 84 [2023-12-16 06:23:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:22,614 INFO L495 AbstractCegarLoop]: Abstraction has 43037 states and 64475 transitions. [2023-12-16 06:23:22,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 43037 states and 64475 transitions. [2023-12-16 06:23:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:22,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:22,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:22,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:23:22,623 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:22,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1639566614, now seen corresponding path program 1 times [2023-12-16 06:23:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257749498] [2023-12-16 06:23:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:22,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:22,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257749498] [2023-12-16 06:23:22,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257749498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:22,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:22,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:22,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905577412] [2023-12-16 06:23:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:22,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:22,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:22,714 INFO L87 Difference]: Start difference. First operand 43037 states and 64475 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:23,220 INFO L93 Difference]: Finished difference Result 84822 states and 126978 transitions. [2023-12-16 06:23:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:23,319 INFO L225 Difference]: With dead ends: 84822 [2023-12-16 06:23:23,320 INFO L226 Difference]: Without dead ends: 55042 [2023-12-16 06:23:23,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:23,359 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:23,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 535 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55042 states. [2023-12-16 06:23:24,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55042 to 54557. [2023-12-16 06:23:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54557 states, 54556 states have (on average 1.4773810396656646) internal successors, (80600), 54556 states have internal predecessors, (80600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54557 states to 54557 states and 80600 transitions. [2023-12-16 06:23:24,163 INFO L78 Accepts]: Start accepts. Automaton has 54557 states and 80600 transitions. Word has length 84 [2023-12-16 06:23:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:24,163 INFO L495 AbstractCegarLoop]: Abstraction has 54557 states and 80600 transitions. [2023-12-16 06:23:24,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 54557 states and 80600 transitions. [2023-12-16 06:23:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:24,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:24,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:24,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:23:24,203 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:24,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:24,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1418496759, now seen corresponding path program 1 times [2023-12-16 06:23:24,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:24,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441477481] [2023-12-16 06:23:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:24,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:24,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:24,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441477481] [2023-12-16 06:23:24,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441477481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:24,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:24,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947555632] [2023-12-16 06:23:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:24,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:24,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:24,325 INFO L87 Difference]: Start difference. First operand 54557 states and 80600 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:25,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:25,572 INFO L93 Difference]: Finished difference Result 90487 states and 133319 transitions. [2023-12-16 06:23:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:25,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:25,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:25,727 INFO L225 Difference]: With dead ends: 90487 [2023-12-16 06:23:25,727 INFO L226 Difference]: Without dead ends: 61933 [2023-12-16 06:23:25,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:25,790 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 171 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:25,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 533 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:25,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61933 states. [2023-12-16 06:23:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61933 to 61380. [2023-12-16 06:23:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61380 states, 61379 states have (on average 1.4515387999152805) internal successors, (89094), 61379 states have internal predecessors, (89094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:27,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61380 states to 61380 states and 89094 transitions. [2023-12-16 06:23:27,216 INFO L78 Accepts]: Start accepts. Automaton has 61380 states and 89094 transitions. Word has length 84 [2023-12-16 06:23:27,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:27,216 INFO L495 AbstractCegarLoop]: Abstraction has 61380 states and 89094 transitions. [2023-12-16 06:23:27,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 61380 states and 89094 transitions. [2023-12-16 06:23:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:27,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:27,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:27,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:23:27,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:27,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1932108068, now seen corresponding path program 1 times [2023-12-16 06:23:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491243242] [2023-12-16 06:23:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:27,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491243242] [2023-12-16 06:23:27,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491243242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:27,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:27,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:27,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790692824] [2023-12-16 06:23:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:27,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:27,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:27,325 INFO L87 Difference]: Start difference. First operand 61380 states and 89094 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:27,530 INFO L93 Difference]: Finished difference Result 83829 states and 121193 transitions. [2023-12-16 06:23:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:27,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:27,648 INFO L225 Difference]: With dead ends: 83829 [2023-12-16 06:23:27,648 INFO L226 Difference]: Without dead ends: 62995 [2023-12-16 06:23:27,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:27,683 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:27,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 534 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:27,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62995 states. [2023-12-16 06:23:28,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62995 to 56785. [2023-12-16 06:23:28,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56785 states, 56784 states have (on average 1.4281311637080867) internal successors, (81095), 56784 states have internal predecessors, (81095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56785 states to 56785 states and 81095 transitions. [2023-12-16 06:23:28,842 INFO L78 Accepts]: Start accepts. Automaton has 56785 states and 81095 transitions. Word has length 84 [2023-12-16 06:23:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:28,842 INFO L495 AbstractCegarLoop]: Abstraction has 56785 states and 81095 transitions. [2023-12-16 06:23:28,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 56785 states and 81095 transitions. [2023-12-16 06:23:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:28,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:28,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:28,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:23:28,850 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:28,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1919152151, now seen corresponding path program 1 times [2023-12-16 06:23:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238754305] [2023-12-16 06:23:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:29,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:29,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238754305] [2023-12-16 06:23:29,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238754305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:29,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:29,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:29,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910760148] [2023-12-16 06:23:29,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:29,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:29,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:29,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:29,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:29,178 INFO L87 Difference]: Start difference. First operand 56785 states and 81095 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:30,091 INFO L93 Difference]: Finished difference Result 142548 states and 204891 transitions. [2023-12-16 06:23:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:30,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:30,409 INFO L225 Difference]: With dead ends: 142548 [2023-12-16 06:23:30,409 INFO L226 Difference]: Without dead ends: 116790 [2023-12-16 06:23:30,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:30,468 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1661 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:30,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1729 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116790 states. [2023-12-16 06:23:31,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116790 to 82306. [2023-12-16 06:23:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82306 states, 82305 states have (on average 1.4275074418322096) internal successors, (117491), 82305 states have internal predecessors, (117491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82306 states to 82306 states and 117491 transitions. [2023-12-16 06:23:31,806 INFO L78 Accepts]: Start accepts. Automaton has 82306 states and 117491 transitions. Word has length 84 [2023-12-16 06:23:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:31,806 INFO L495 AbstractCegarLoop]: Abstraction has 82306 states and 117491 transitions. [2023-12-16 06:23:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 82306 states and 117491 transitions. [2023-12-16 06:23:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:31,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:31,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:31,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:23:31,814 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:31,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:31,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1838586634, now seen corresponding path program 1 times [2023-12-16 06:23:31,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:31,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147285374] [2023-12-16 06:23:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:31,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147285374] [2023-12-16 06:23:31,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147285374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:31,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:31,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:31,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93948427] [2023-12-16 06:23:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:31,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:31,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:31,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:31,966 INFO L87 Difference]: Start difference. First operand 82306 states and 117491 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:32,739 INFO L93 Difference]: Finished difference Result 152038 states and 218303 transitions. [2023-12-16 06:23:32,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:32,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:32,978 INFO L225 Difference]: With dead ends: 152038 [2023-12-16 06:23:32,979 INFO L226 Difference]: Without dead ends: 134312 [2023-12-16 06:23:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:33,025 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1828 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:33,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 1619 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:33,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134312 states. [2023-12-16 06:23:35,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134312 to 99849. [2023-12-16 06:23:35,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99849 states, 99848 states have (on average 1.4279905456293567) internal successors, (142582), 99848 states have internal predecessors, (142582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99849 states to 99849 states and 142582 transitions. [2023-12-16 06:23:35,977 INFO L78 Accepts]: Start accepts. Automaton has 99849 states and 142582 transitions. Word has length 84 [2023-12-16 06:23:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:35,977 INFO L495 AbstractCegarLoop]: Abstraction has 99849 states and 142582 transitions. [2023-12-16 06:23:35,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 99849 states and 142582 transitions. [2023-12-16 06:23:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:35,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:35,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:23:35,986 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:35,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1568276092, now seen corresponding path program 1 times [2023-12-16 06:23:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:35,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382749873] [2023-12-16 06:23:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:35,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:36,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:36,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382749873] [2023-12-16 06:23:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382749873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633576986] [2023-12-16 06:23:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:36,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:36,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:36,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:36,129 INFO L87 Difference]: Start difference. First operand 99849 states and 142582 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:37,396 INFO L93 Difference]: Finished difference Result 150930 states and 216417 transitions. [2023-12-16 06:23:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:37,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:37,872 INFO L225 Difference]: With dead ends: 150930 [2023-12-16 06:23:37,873 INFO L226 Difference]: Without dead ends: 145780 [2023-12-16 06:23:37,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:37,964 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1763 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:37,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1784 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145780 states. [2023-12-16 06:23:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145780 to 104925. [2023-12-16 06:23:39,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104925 states, 104924 states have (on average 1.4281575235408486) internal successors, (149848), 104924 states have internal predecessors, (149848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104925 states to 104925 states and 149848 transitions. [2023-12-16 06:23:40,186 INFO L78 Accepts]: Start accepts. Automaton has 104925 states and 149848 transitions. Word has length 84 [2023-12-16 06:23:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:40,187 INFO L495 AbstractCegarLoop]: Abstraction has 104925 states and 149848 transitions. [2023-12-16 06:23:40,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 104925 states and 149848 transitions. [2023-12-16 06:23:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:23:40,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:40,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:40,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:23:40,198 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:40,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 589823305, now seen corresponding path program 1 times [2023-12-16 06:23:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:40,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770003188] [2023-12-16 06:23:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:40,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:40,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770003188] [2023-12-16 06:23:40,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770003188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:40,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:40,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:40,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614410701] [2023-12-16 06:23:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:40,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:40,456 INFO L87 Difference]: Start difference. First operand 104925 states and 149848 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:41,763 INFO L93 Difference]: Finished difference Result 162294 states and 232763 transitions. [2023-12-16 06:23:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:41,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-16 06:23:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:42,001 INFO L225 Difference]: With dead ends: 162294 [2023-12-16 06:23:42,002 INFO L226 Difference]: Without dead ends: 150760 [2023-12-16 06:23:42,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:42,058 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1567 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:42,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 2062 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:23:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150760 states. [2023-12-16 06:23:44,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150760 to 112149. [2023-12-16 06:23:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112149 states, 112148 states have (on average 1.429165031922103) internal successors, (160278), 112148 states have internal predecessors, (160278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112149 states to 112149 states and 160278 transitions. [2023-12-16 06:23:44,394 INFO L78 Accepts]: Start accepts. Automaton has 112149 states and 160278 transitions. Word has length 84 [2023-12-16 06:23:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:44,395 INFO L495 AbstractCegarLoop]: Abstraction has 112149 states and 160278 transitions. [2023-12-16 06:23:44,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 112149 states and 160278 transitions. [2023-12-16 06:23:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:23:44,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:44,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:44,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:23:44,406 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:44,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1918565360, now seen corresponding path program 1 times [2023-12-16 06:23:44,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:44,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646204957] [2023-12-16 06:23:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:44,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:44,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:44,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646204957] [2023-12-16 06:23:44,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646204957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:44,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:44,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601405102] [2023-12-16 06:23:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:44,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:44,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:44,585 INFO L87 Difference]: Start difference. First operand 112149 states and 160278 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:45,629 INFO L93 Difference]: Finished difference Result 204103 states and 292815 transitions. [2023-12-16 06:23:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-16 06:23:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:46,017 INFO L225 Difference]: With dead ends: 204103 [2023-12-16 06:23:46,017 INFO L226 Difference]: Without dead ends: 176249 [2023-12-16 06:23:46,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:46,118 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1668 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:46,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 2050 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176249 states. [2023-12-16 06:23:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176249 to 131138. [2023-12-16 06:23:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131138 states, 131137 states have (on average 1.4291161152077598) internal successors, (187410), 131137 states have internal predecessors, (187410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131138 states to 131138 states and 187410 transitions. [2023-12-16 06:23:48,938 INFO L78 Accepts]: Start accepts. Automaton has 131138 states and 187410 transitions. Word has length 85 [2023-12-16 06:23:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:48,939 INFO L495 AbstractCegarLoop]: Abstraction has 131138 states and 187410 transitions. [2023-12-16 06:23:48,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 131138 states and 187410 transitions. [2023-12-16 06:23:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 06:23:48,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:48,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:48,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:23:48,950 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:48,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:48,950 INFO L85 PathProgramCache]: Analyzing trace with hash -931169472, now seen corresponding path program 1 times [2023-12-16 06:23:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:48,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656103010] [2023-12-16 06:23:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:49,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:49,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656103010] [2023-12-16 06:23:49,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656103010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:49,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:49,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245621282] [2023-12-16 06:23:49,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:49,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:49,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:49,012 INFO L87 Difference]: Start difference. First operand 131138 states and 187410 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:50,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:50,284 INFO L93 Difference]: Finished difference Result 286520 states and 407655 transitions. [2023-12-16 06:23:50,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:50,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-16 06:23:50,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:50,656 INFO L225 Difference]: With dead ends: 286520 [2023-12-16 06:23:50,656 INFO L226 Difference]: Without dead ends: 160529 [2023-12-16 06:23:50,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:50,769 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 186 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:50,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160529 states. [2023-12-16 06:23:52,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160529 to 144009. [2023-12-16 06:23:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144009 states, 144008 states have (on average 1.3987972890394977) internal successors, (201438), 144008 states have internal predecessors, (201438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144009 states to 144009 states and 201438 transitions. [2023-12-16 06:23:53,456 INFO L78 Accepts]: Start accepts. Automaton has 144009 states and 201438 transitions. Word has length 87 [2023-12-16 06:23:53,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:53,457 INFO L495 AbstractCegarLoop]: Abstraction has 144009 states and 201438 transitions. [2023-12-16 06:23:53,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:53,457 INFO L276 IsEmpty]: Start isEmpty. Operand 144009 states and 201438 transitions. [2023-12-16 06:23:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 06:23:53,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:53,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:53,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:23:53,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:53,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash -568528588, now seen corresponding path program 1 times [2023-12-16 06:23:53,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:53,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472206695] [2023-12-16 06:23:53,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:53,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:53,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:53,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472206695] [2023-12-16 06:23:53,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472206695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:53,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:53,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:23:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486058408] [2023-12-16 06:23:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:53,766 INFO L87 Difference]: Start difference. First operand 144009 states and 201438 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:58,448 INFO L93 Difference]: Finished difference Result 685099 states and 957222 transitions. [2023-12-16 06:23:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:23:58,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-16 06:23:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:59,918 INFO L225 Difference]: With dead ends: 685099 [2023-12-16 06:23:59,918 INFO L226 Difference]: Without dead ends: 631439 [2023-12-16 06:24:00,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:24:00,039 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 4245 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:00,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 571 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 06:24:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631439 states. [2023-12-16 06:24:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631439 to 144057. [2023-12-16 06:24:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144057 states, 144056 states have (on average 1.3987754762036986) internal successors, (201502), 144056 states have internal predecessors, (201502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144057 states to 144057 states and 201502 transitions. [2023-12-16 06:24:06,364 INFO L78 Accepts]: Start accepts. Automaton has 144057 states and 201502 transitions. Word has length 89 [2023-12-16 06:24:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:24:06,364 INFO L495 AbstractCegarLoop]: Abstraction has 144057 states and 201502 transitions. [2023-12-16 06:24:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:24:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 144057 states and 201502 transitions. [2023-12-16 06:24:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 06:24:06,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:24:06,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:06,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:24:06,380 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:24:06,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:24:06,381 INFO L85 PathProgramCache]: Analyzing trace with hash -63333267, now seen corresponding path program 1 times [2023-12-16 06:24:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:24:06,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987456381] [2023-12-16 06:24:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:24:06,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:24:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:24:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:24:06,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:24:06,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987456381] [2023-12-16 06:24:06,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987456381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:24:06,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:24:06,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:24:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920818290] [2023-12-16 06:24:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:24:06,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:24:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:24:06,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:24:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:24:06,880 INFO L87 Difference]: Start difference. First operand 144057 states and 201502 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 06:24:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:24:08,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:24:08,573 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 2496 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:24:08,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2496 Valid, 499 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:24:08,576 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:24:08,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:24:08,577 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (144057states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (297973 states constructed, input type IntersectNwa). [2023-12-16 06:24:08,582 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:24:08,584 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:24:08,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:24:08 BoogieIcfgContainer [2023-12-16 06:24:08,588 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:24:08,588 INFO L158 Benchmark]: Toolchain (without parser) took 57668.09ms. Allocated memory was 282.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 228.4MB in the beginning and 6.6GB in the end (delta: -6.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 06:24:08,589 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 128.4MB in the end (delta: 129.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:24:08,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.03ms. Allocated memory is still 282.1MB. Free memory was 228.4MB in the beginning and 204.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 06:24:08,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.86ms. Allocated memory is still 282.1MB. Free memory was 204.7MB in the beginning and 200.1MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 06:24:08,594 INFO L158 Benchmark]: Boogie Preprocessor took 77.85ms. Allocated memory is still 282.1MB. Free memory was 200.1MB in the beginning and 195.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 06:24:08,594 INFO L158 Benchmark]: RCFGBuilder took 911.24ms. Allocated memory is still 282.1MB. Free memory was 195.9MB in the beginning and 219.9MB in the end (delta: -24.0MB). Peak memory consumption was 33.1MB. Max. memory is 8.0GB. [2023-12-16 06:24:08,595 INFO L158 Benchmark]: TraceAbstraction took 56107.50ms. Allocated memory was 282.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 219.3MB in the beginning and 6.6GB in the end (delta: -6.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 06:24:08,599 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:24:08,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 128.4MB in the end (delta: 129.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 484.03ms. Allocated memory is still 282.1MB. Free memory was 228.4MB in the beginning and 204.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 79.86ms. Allocated memory is still 282.1MB. Free memory was 204.7MB in the beginning and 200.1MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.85ms. Allocated memory is still 282.1MB. Free memory was 200.1MB in the beginning and 195.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 911.24ms. Allocated memory is still 282.1MB. Free memory was 195.9MB in the beginning and 219.9MB in the end (delta: -24.0MB). Peak memory consumption was 33.1MB. Max. memory is 8.0GB. * TraceAbstraction took 56107.50ms. Allocated memory was 282.1MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 219.3MB in the beginning and 6.6GB in the end (delta: -6.4GB). Peak memory consumption was 1.5GB. 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 (144057states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (297973 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 205 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.1s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25812 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25812 mSDsluCounter, 20046 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13694 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2523 IncrementalHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 6352 mSDtfsCounter, 2523 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144057occurred in iteration=20, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 744824 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1752 NumberOfCodeBlocks, 1752 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1731 ConstructedInterpolants, 0 QuantifiedInterpolants, 8654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 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