/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:39:48,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:39:48,350 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:39:48,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:39:48,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:39:48,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:39:48,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:39:48,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:39:48,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:39:48,387 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:39:48,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:39:48,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:39:48,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:39:48,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:39:48,390 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:39:48,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:39:48,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:39:48,390 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:39:48,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:39:48,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:39:48,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:39:48,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:39:48,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:39:48,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:39:48,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:39:48,393 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:39:48,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:39:48,394 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:39:48,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:39:48,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:39:48,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:39:48,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:39:48,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:39:48,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:39:48,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:39:48,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:39:48,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:39:48,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:39:48,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:39:48,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:39:48,397 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:39:48,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:39:48,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:39:48,398 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:39:48,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:39:48,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:39:48,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:39:48,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:39:48,674 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:39:48,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2023-12-15 23:39:49,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:39:50,142 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:39:50,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2023-12-15 23:39:50,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c537a7fa/b5181ce7f8e948c7b139d7e43bfb1c9d/FLAG713f505ef [2023-12-15 23:39:50,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c537a7fa/b5181ce7f8e948c7b139d7e43bfb1c9d [2023-12-15 23:39:50,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:39:50,182 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:39:50,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:39:50,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:39:50,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:39:50,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f68c4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50, skipping insertion in model container [2023-12-15 23:39:50,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:39:50,486 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.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2023-12-15 23:39:50,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:39:50,554 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:39:50,621 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.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2023-12-15 23:39:50,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:39:50,674 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:39:50,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50 WrapperNode [2023-12-15 23:39:50,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:39:50,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:39:50,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:39:50,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:39:50,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,743 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 912 [2023-12-15 23:39:50,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:39:50,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:39:50,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:39:50,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:39:50,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,765 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,794 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:39:50,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:39:50,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:39:50,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:39:50,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:39:50,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (1/1) ... [2023-12-15 23:39:50,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:39:50,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:39:50,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:39:50,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:39:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:39:50,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:39:50,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:39:50,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:39:51,044 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:39:51,045 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:39:51,717 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:39:51,765 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:39:51,766 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:39:51,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:39:51 BoogieIcfgContainer [2023-12-15 23:39:51,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:39:51,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:39:51,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:39:51,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:39:51,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:39:50" (1/3) ... [2023-12-15 23:39:51,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28685c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:39:51, skipping insertion in model container [2023-12-15 23:39:51,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:39:50" (2/3) ... [2023-12-15 23:39:51,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28685c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:39:51, skipping insertion in model container [2023-12-15 23:39:51,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:39:51" (3/3) ... [2023-12-15 23:39:51,773 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2023-12-15 23:39:51,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:39:51,789 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:39:51,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:39:51,835 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;@67065ee4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:39:51,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:39:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 198 states have (on average 1.7727272727272727) internal successors, (351), 199 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) [2023-12-15 23:39:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 23:39:51,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:51,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:51,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:51,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:51,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2025366607, now seen corresponding path program 1 times [2023-12-15 23:39:51,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:51,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132707185] [2023-12-15 23:39:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:52,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:52,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132707185] [2023-12-15 23:39:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132707185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370314158] [2023-12-15 23:39:52,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:52,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:52,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:52,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:52,713 INFO L87 Difference]: Start difference. First operand has 200 states, 198 states have (on average 1.7727272727272727) internal successors, (351), 199 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 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:53,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:53,366 INFO L93 Difference]: Finished difference Result 1443 states and 2326 transitions. [2023-12-15 23:39:53,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:39:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2023-12-15 23:39:53,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:53,390 INFO L225 Difference]: With dead ends: 1443 [2023-12-15 23:39:53,390 INFO L226 Difference]: Without dead ends: 1332 [2023-12-15 23:39:53,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:39:53,399 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 2668 mSDsluCounter, 6078 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:53,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 6928 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:39:53,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2023-12-15 23:39:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 303. [2023-12-15 23:39:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4437086092715232) internal successors, (436), 302 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 436 transitions. [2023-12-15 23:39:53,479 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 436 transitions. Word has length 107 [2023-12-15 23:39:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:53,480 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 436 transitions. [2023-12-15 23:39:53,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 436 transitions. [2023-12-15 23:39:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:53,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:53,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:53,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:39:53,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:53,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:53,487 INFO L85 PathProgramCache]: Analyzing trace with hash -112612580, now seen corresponding path program 1 times [2023-12-15 23:39:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:53,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724974846] [2023-12-15 23:39:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:53,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:53,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724974846] [2023-12-15 23:39:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724974846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:53,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:53,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:53,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646140453] [2023-12-15 23:39:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:53,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:53,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:53,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:53,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:53,837 INFO L87 Difference]: Start difference. First operand 303 states and 436 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:54,175 INFO L93 Difference]: Finished difference Result 1559 states and 2418 transitions. [2023-12-15 23:39:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:54,182 INFO L225 Difference]: With dead ends: 1559 [2023-12-15 23:39:54,183 INFO L226 Difference]: Without dead ends: 1399 [2023-12-15 23:39:54,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:54,187 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1945 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:54,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 4016 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:39:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2023-12-15 23:39:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 482. [2023-12-15 23:39:54,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.496881496881497) internal successors, (720), 481 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 720 transitions. [2023-12-15 23:39:54,210 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 720 transitions. Word has length 109 [2023-12-15 23:39:54,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:54,213 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 720 transitions. [2023-12-15 23:39:54,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 720 transitions. [2023-12-15 23:39:54,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:54,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:54,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:54,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:39:54,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:54,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash -481411432, now seen corresponding path program 1 times [2023-12-15 23:39:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:54,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537910712] [2023-12-15 23:39:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:54,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:54,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:54,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537910712] [2023-12-15 23:39:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537910712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:54,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:54,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:54,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659274198] [2023-12-15 23:39:54,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:54,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:54,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:54,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:54,441 INFO L87 Difference]: Start difference. First operand 482 states and 720 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:54,728 INFO L93 Difference]: Finished difference Result 1738 states and 2702 transitions. [2023-12-15 23:39:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:54,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:54,734 INFO L225 Difference]: With dead ends: 1738 [2023-12-15 23:39:54,735 INFO L226 Difference]: Without dead ends: 1578 [2023-12-15 23:39:54,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:54,737 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1940 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:54,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 3065 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:39:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-12-15 23:39:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 740. [2023-12-15 23:39:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 1.5277401894451963) internal successors, (1129), 739 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1129 transitions. [2023-12-15 23:39:54,756 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1129 transitions. Word has length 109 [2023-12-15 23:39:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:54,756 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1129 transitions. [2023-12-15 23:39:54,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1129 transitions. [2023-12-15 23:39:54,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:54,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:54,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:54,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:39:54,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:54,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:54,759 INFO L85 PathProgramCache]: Analyzing trace with hash -483624912, now seen corresponding path program 1 times [2023-12-15 23:39:54,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:54,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667694029] [2023-12-15 23:39:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667694029] [2023-12-15 23:39:54,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667694029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:54,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:54,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:54,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600863790] [2023-12-15 23:39:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:54,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:54,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:54,961 INFO L87 Difference]: Start difference. First operand 740 states and 1129 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:55,229 INFO L93 Difference]: Finished difference Result 1912 states and 2978 transitions. [2023-12-15 23:39:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:55,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:55,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:55,237 INFO L225 Difference]: With dead ends: 1912 [2023-12-15 23:39:55,237 INFO L226 Difference]: Without dead ends: 1752 [2023-12-15 23:39:55,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:55,248 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2144 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:55,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 2914 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:39:55,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-12-15 23:39:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 914. [2023-12-15 23:39:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.5388828039430449) internal successors, (1405), 913 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1405 transitions. [2023-12-15 23:39:55,281 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1405 transitions. Word has length 109 [2023-12-15 23:39:55,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:55,283 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1405 transitions. [2023-12-15 23:39:55,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1405 transitions. [2023-12-15 23:39:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:55,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:55,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:55,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:39:55,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:55,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1534440260, now seen corresponding path program 1 times [2023-12-15 23:39:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:55,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649875608] [2023-12-15 23:39:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:55,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:55,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:55,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649875608] [2023-12-15 23:39:55,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649875608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:55,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:55,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847304250] [2023-12-15 23:39:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:55,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:55,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:55,522 INFO L87 Difference]: Start difference. First operand 914 states and 1405 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:55,753 INFO L93 Difference]: Finished difference Result 2081 states and 3246 transitions. [2023-12-15 23:39:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:55,760 INFO L225 Difference]: With dead ends: 2081 [2023-12-15 23:39:55,760 INFO L226 Difference]: Without dead ends: 1921 [2023-12-15 23:39:55,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:55,761 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 2346 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:55,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2346 Valid, 2683 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2023-12-15 23:39:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1078. [2023-12-15 23:39:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 1.5459610027855153) internal successors, (1665), 1077 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1665 transitions. [2023-12-15 23:39:55,788 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1665 transitions. Word has length 109 [2023-12-15 23:39:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:55,789 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1665 transitions. [2023-12-15 23:39:55,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1665 transitions. [2023-12-15 23:39:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:55,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:55,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:55,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:39:55,790 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:55,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:55,791 INFO L85 PathProgramCache]: Analyzing trace with hash -713861008, now seen corresponding path program 1 times [2023-12-15 23:39:55,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437858608] [2023-12-15 23:39:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:55,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:55,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437858608] [2023-12-15 23:39:55,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437858608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:55,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:55,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212291778] [2023-12-15 23:39:55,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:55,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:55,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:55,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:55,999 INFO L87 Difference]: Start difference. First operand 1078 states and 1665 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:56,255 INFO L93 Difference]: Finished difference Result 2240 states and 3498 transitions. [2023-12-15 23:39:56,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:56,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:56,262 INFO L225 Difference]: With dead ends: 2240 [2023-12-15 23:39:56,262 INFO L226 Difference]: Without dead ends: 2080 [2023-12-15 23:39:56,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:56,264 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2847 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:56,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 2590 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2023-12-15 23:39:56,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1237. [2023-12-15 23:39:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1236 states have (on average 1.5509708737864079) internal successors, (1917), 1236 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1917 transitions. [2023-12-15 23:39:56,294 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1917 transitions. Word has length 109 [2023-12-15 23:39:56,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:56,294 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 1917 transitions. [2023-12-15 23:39:56,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1917 transitions. [2023-12-15 23:39:56,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:56,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:56,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:56,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:39:56,296 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:56,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:56,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1997775987, now seen corresponding path program 1 times [2023-12-15 23:39:56,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:56,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677754962] [2023-12-15 23:39:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:56,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:56,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677754962] [2023-12-15 23:39:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677754962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:56,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:56,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017684886] [2023-12-15 23:39:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:56,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:56,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:56,659 INFO L87 Difference]: Start difference. First operand 1237 states and 1917 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:56,966 INFO L93 Difference]: Finished difference Result 2268 states and 3551 transitions. [2023-12-15 23:39:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:56,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:56,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:56,971 INFO L225 Difference]: With dead ends: 2268 [2023-12-15 23:39:56,971 INFO L226 Difference]: Without dead ends: 1239 [2023-12-15 23:39:56,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:39:56,973 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 507 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:56,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1227 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-12-15 23:39:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2023-12-15 23:39:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1236 states have (on average 1.5453074433656957) internal successors, (1910), 1236 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1910 transitions. [2023-12-15 23:39:56,996 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1910 transitions. Word has length 109 [2023-12-15 23:39:56,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:56,996 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 1910 transitions. [2023-12-15 23:39:56,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1910 transitions. [2023-12-15 23:39:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:56,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:56,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:56,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:39:56,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:56,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1754651636, now seen corresponding path program 1 times [2023-12-15 23:39:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:56,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597755367] [2023-12-15 23:39:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:56,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:57,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:57,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597755367] [2023-12-15 23:39:57,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597755367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:57,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:57,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:39:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691648693] [2023-12-15 23:39:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:57,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:39:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:39:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:39:57,061 INFO L87 Difference]: Start difference. First operand 1237 states and 1910 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:57,103 INFO L93 Difference]: Finished difference Result 3211 states and 5021 transitions. [2023-12-15 23:39:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:39:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:57,110 INFO L225 Difference]: With dead ends: 3211 [2023-12-15 23:39:57,110 INFO L226 Difference]: Without dead ends: 2182 [2023-12-15 23:39:57,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:39:57,115 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 115 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:57,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 638 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:39:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2023-12-15 23:39:57,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2180. [2023-12-15 23:39:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2179 states have (on average 1.5456631482331344) internal successors, (3368), 2179 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3368 transitions. [2023-12-15 23:39:57,154 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3368 transitions. Word has length 109 [2023-12-15 23:39:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:57,154 INFO L495 AbstractCegarLoop]: Abstraction has 2180 states and 3368 transitions. [2023-12-15 23:39:57,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3368 transitions. [2023-12-15 23:39:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:57,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:57,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:57,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:39:57,156 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:57,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:57,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1391979594, now seen corresponding path program 1 times [2023-12-15 23:39:57,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:57,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650636032] [2023-12-15 23:39:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:57,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650636032] [2023-12-15 23:39:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650636032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:57,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:57,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:57,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92664403] [2023-12-15 23:39:57,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:57,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:57,377 INFO L87 Difference]: Start difference. First operand 2180 states and 3368 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:57,635 INFO L93 Difference]: Finished difference Result 4356 states and 6768 transitions. [2023-12-15 23:39:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:57,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:57,650 INFO L225 Difference]: With dead ends: 4356 [2023-12-15 23:39:57,650 INFO L226 Difference]: Without dead ends: 4051 [2023-12-15 23:39:57,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:57,653 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 2149 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:57,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2973 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:39:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2023-12-15 23:39:57,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 2483. [2023-12-15 23:39:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2482 states have (on average 1.547945205479452) internal successors, (3842), 2482 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3842 transitions. [2023-12-15 23:39:57,709 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3842 transitions. Word has length 109 [2023-12-15 23:39:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:57,709 INFO L495 AbstractCegarLoop]: Abstraction has 2483 states and 3842 transitions. [2023-12-15 23:39:57,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3842 transitions. [2023-12-15 23:39:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 23:39:57,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:57,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:57,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:39:57,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:57,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:57,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1793035644, now seen corresponding path program 1 times [2023-12-15 23:39:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:57,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645169254] [2023-12-15 23:39:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:57,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:57,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:57,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645169254] [2023-12-15 23:39:57,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645169254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:57,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:57,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:39:57,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406353064] [2023-12-15 23:39:57,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:57,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:39:57,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:57,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:39:57,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:39:57,948 INFO L87 Difference]: Start difference. First operand 2483 states and 3842 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:58,227 INFO L93 Difference]: Finished difference Result 4665 states and 7251 transitions. [2023-12-15 23:39:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:39:58,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2023-12-15 23:39:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:58,241 INFO L225 Difference]: With dead ends: 4665 [2023-12-15 23:39:58,241 INFO L226 Difference]: Without dead ends: 4360 [2023-12-15 23:39:58,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:39:58,243 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 2196 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:58,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 3694 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:39:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2023-12-15 23:39:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 2797. [2023-12-15 23:39:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.549713876967096) internal successors, (4333), 2796 states have internal predecessors, (4333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4333 transitions. [2023-12-15 23:39:58,303 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4333 transitions. Word has length 109 [2023-12-15 23:39:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:58,303 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 4333 transitions. [2023-12-15 23:39:58,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4333 transitions. [2023-12-15 23:39:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 23:39:58,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:58,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:58,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:39:58,305 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:58,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1799604283, now seen corresponding path program 1 times [2023-12-15 23:39:58,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:58,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012917139] [2023-12-15 23:39:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:58,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:58,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012917139] [2023-12-15 23:39:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012917139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:58,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:58,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:39:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54852475] [2023-12-15 23:39:58,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:58,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:39:58,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:39:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:39:58,416 INFO L87 Difference]: Start difference. First operand 2797 states and 4333 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:58,564 INFO L93 Difference]: Finished difference Result 5522 states and 8589 transitions. [2023-12-15 23:39:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:39:58,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-15 23:39:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:58,573 INFO L225 Difference]: With dead ends: 5522 [2023-12-15 23:39:58,573 INFO L226 Difference]: Without dead ends: 2797 [2023-12-15 23:39:58,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:39:58,577 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 698 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:58,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 179 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:58,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-15 23:39:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2023-12-15 23:39:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.5371959942775393) internal successors, (4298), 2796 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4298 transitions. [2023-12-15 23:39:58,628 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4298 transitions. Word has length 110 [2023-12-15 23:39:58,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:58,628 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 4298 transitions. [2023-12-15 23:39:58,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4298 transitions. [2023-12-15 23:39:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 23:39:58,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:58,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:58,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:39:58,630 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:58,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1013954983, now seen corresponding path program 1 times [2023-12-15 23:39:58,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:58,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438919138] [2023-12-15 23:39:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:58,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438919138] [2023-12-15 23:39:58,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438919138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:58,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:58,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:39:58,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477138396] [2023-12-15 23:39:58,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:58,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:39:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:39:58,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:39:58,781 INFO L87 Difference]: Start difference. First operand 2797 states and 4298 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:58,935 INFO L93 Difference]: Finished difference Result 5530 states and 8529 transitions. [2023-12-15 23:39:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:39:58,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-15 23:39:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:58,953 INFO L225 Difference]: With dead ends: 5530 [2023-12-15 23:39:58,953 INFO L226 Difference]: Without dead ends: 2797 [2023-12-15 23:39:58,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:39:58,957 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 714 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:58,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 163 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-15 23:39:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2023-12-15 23:39:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.5246781115879828) internal successors, (4263), 2796 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4263 transitions. [2023-12-15 23:39:59,010 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4263 transitions. Word has length 111 [2023-12-15 23:39:59,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:59,010 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 4263 transitions. [2023-12-15 23:39:59,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4263 transitions. [2023-12-15 23:39:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-15 23:39:59,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:59,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:59,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:39:59,012 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:59,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1796475323, now seen corresponding path program 1 times [2023-12-15 23:39:59,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:59,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690895575] [2023-12-15 23:39:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:59,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:59,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:59,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690895575] [2023-12-15 23:39:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690895575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:59,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:59,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:39:59,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836024414] [2023-12-15 23:39:59,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:59,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:39:59,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:39:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:39:59,144 INFO L87 Difference]: Start difference. First operand 2797 states and 4263 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:59,296 INFO L93 Difference]: Finished difference Result 5526 states and 8455 transitions. [2023-12-15 23:39:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:39:59,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2023-12-15 23:39:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:59,301 INFO L225 Difference]: With dead ends: 5526 [2023-12-15 23:39:59,301 INFO L226 Difference]: Without dead ends: 2797 [2023-12-15 23:39:59,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:39:59,305 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 696 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:59,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 171 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-15 23:39:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2023-12-15 23:39:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.5121602288984264) internal successors, (4228), 2796 states have internal predecessors, (4228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4228 transitions. [2023-12-15 23:39:59,344 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4228 transitions. Word has length 112 [2023-12-15 23:39:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:59,345 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 4228 transitions. [2023-12-15 23:39:59,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4228 transitions. [2023-12-15 23:39:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 23:39:59,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:59,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:59,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:39:59,347 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:59,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1286316851, now seen corresponding path program 1 times [2023-12-15 23:39:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873664621] [2023-12-15 23:39:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:59,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:59,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873664621] [2023-12-15 23:39:59,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873664621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:59,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:39:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654631481] [2023-12-15 23:39:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:59,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:39:59,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:39:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:39:59,470 INFO L87 Difference]: Start difference. First operand 2797 states and 4228 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:39:59,612 INFO L93 Difference]: Finished difference Result 5534 states and 8394 transitions. [2023-12-15 23:39:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:39:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2023-12-15 23:39:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:39:59,617 INFO L225 Difference]: With dead ends: 5534 [2023-12-15 23:39:59,617 INFO L226 Difference]: Without dead ends: 2797 [2023-12-15 23:39:59,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:39:59,621 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 713 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:39:59,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 155 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:39:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-15 23:39:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2023-12-15 23:39:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.4996423462088697) internal successors, (4193), 2796 states have internal predecessors, (4193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4193 transitions. [2023-12-15 23:39:59,676 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4193 transitions. Word has length 113 [2023-12-15 23:39:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:39:59,677 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 4193 transitions. [2023-12-15 23:39:59,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:39:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4193 transitions. [2023-12-15 23:39:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-15 23:39:59,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:39:59,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:39:59,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:39:59,679 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:39:59,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:39:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1767059885, now seen corresponding path program 1 times [2023-12-15 23:39:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:39:59,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767633249] [2023-12-15 23:39:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:39:59,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:39:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:39:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:39:59,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:39:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767633249] [2023-12-15 23:39:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767633249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:39:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:39:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:39:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914263160] [2023-12-15 23:39:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:39:59,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:39:59,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:39:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:39:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:39:59,817 INFO L87 Difference]: Start difference. First operand 2797 states and 4193 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:00,013 INFO L93 Difference]: Finished difference Result 8213 states and 12376 transitions. [2023-12-15 23:40:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:40:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-15 23:40:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:00,022 INFO L225 Difference]: With dead ends: 8213 [2023-12-15 23:40:00,022 INFO L226 Difference]: Without dead ends: 5472 [2023-12-15 23:40:00,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:40:00,028 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 1046 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:00,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 235 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:40:00,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2023-12-15 23:40:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5470. [2023-12-15 23:40:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 1.5000914243920278) internal successors, (8204), 5469 states have internal predecessors, (8204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 8204 transitions. [2023-12-15 23:40:00,105 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 8204 transitions. Word has length 114 [2023-12-15 23:40:00,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:00,106 INFO L495 AbstractCegarLoop]: Abstraction has 5470 states and 8204 transitions. [2023-12-15 23:40:00,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 8204 transitions. [2023-12-15 23:40:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 23:40:00,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:00,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:00,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:40:00,109 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:00,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1293442625, now seen corresponding path program 1 times [2023-12-15 23:40:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397836212] [2023-12-15 23:40:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397836212] [2023-12-15 23:40:00,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397836212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:00,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:00,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:40:00,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238882558] [2023-12-15 23:40:00,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:00,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:40:00,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:00,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:40:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:40:00,219 INFO L87 Difference]: Start difference. First operand 5470 states and 8204 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:00,366 INFO L93 Difference]: Finished difference Result 10860 states and 16326 transitions. [2023-12-15 23:40:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:40:00,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2023-12-15 23:40:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:00,376 INFO L225 Difference]: With dead ends: 10860 [2023-12-15 23:40:00,376 INFO L226 Difference]: Without dead ends: 5470 [2023-12-15 23:40:00,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:40:00,383 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 645 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:00,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 199 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:40:00,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5470 states. [2023-12-15 23:40:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5470 to 5470. [2023-12-15 23:40:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 1.4874748582921924) internal successors, (8135), 5469 states have internal predecessors, (8135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 8135 transitions. [2023-12-15 23:40:00,463 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 8135 transitions. Word has length 115 [2023-12-15 23:40:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:00,464 INFO L495 AbstractCegarLoop]: Abstraction has 5470 states and 8135 transitions. [2023-12-15 23:40:00,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 8135 transitions. [2023-12-15 23:40:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 23:40:00,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:00,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:00,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:40:00,466 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:00,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1851898717, now seen corresponding path program 1 times [2023-12-15 23:40:00,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:00,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163990534] [2023-12-15 23:40:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:00,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163990534] [2023-12-15 23:40:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163990534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:00,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:00,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:40:00,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834694127] [2023-12-15 23:40:00,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:00,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:40:00,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:40:00,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:40:00,600 INFO L87 Difference]: Start difference. First operand 5470 states and 8135 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:00,748 INFO L93 Difference]: Finished difference Result 10864 states and 16193 transitions. [2023-12-15 23:40:00,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:40:00,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-15 23:40:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:00,758 INFO L225 Difference]: With dead ends: 10864 [2023-12-15 23:40:00,759 INFO L226 Difference]: Without dead ends: 5470 [2023-12-15 23:40:00,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:40:00,766 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 649 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:00,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 187 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:40:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5470 states. [2023-12-15 23:40:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5470 to 5470. [2023-12-15 23:40:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 1.474858292192357) internal successors, (8066), 5469 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 8066 transitions. [2023-12-15 23:40:00,876 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 8066 transitions. Word has length 116 [2023-12-15 23:40:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:00,876 INFO L495 AbstractCegarLoop]: Abstraction has 5470 states and 8066 transitions. [2023-12-15 23:40:00,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 8066 transitions. [2023-12-15 23:40:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 23:40:00,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:00,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:00,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:40:00,878 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:00,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:00,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1165758795, now seen corresponding path program 1 times [2023-12-15 23:40:00,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:00,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707477187] [2023-12-15 23:40:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:00,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:01,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:01,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707477187] [2023-12-15 23:40:01,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707477187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:01,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:01,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:40:01,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636720349] [2023-12-15 23:40:01,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:01,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:40:01,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:01,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:40:01,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:40:01,131 INFO L87 Difference]: Start difference. First operand 5470 states and 8066 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:01,188 INFO L93 Difference]: Finished difference Result 9140 states and 13481 transitions. [2023-12-15 23:40:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:40:01,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-15 23:40:01,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:01,205 INFO L225 Difference]: With dead ends: 9140 [2023-12-15 23:40:01,205 INFO L226 Difference]: Without dead ends: 9138 [2023-12-15 23:40:01,208 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 [2023-12-15 23:40:01,209 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 228 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:01,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1058 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:40:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9138 states. [2023-12-15 23:40:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9138 to 5502. [2023-12-15 23:40:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 1.468823850209053) internal successors, (8080), 5501 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8080 transitions. [2023-12-15 23:40:01,325 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8080 transitions. Word has length 117 [2023-12-15 23:40:01,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:01,325 INFO L495 AbstractCegarLoop]: Abstraction has 5502 states and 8080 transitions. [2023-12-15 23:40:01,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8080 transitions. [2023-12-15 23:40:01,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 23:40:01,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:01,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:01,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:40:01,328 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:01,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:01,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1841524665, now seen corresponding path program 1 times [2023-12-15 23:40:01,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:01,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780552323] [2023-12-15 23:40:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:01,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:01,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:01,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780552323] [2023-12-15 23:40:01,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780552323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:40:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358377136] [2023-12-15 23:40:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:01,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:40:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:40:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:40:01,679 INFO L87 Difference]: Start difference. First operand 5502 states and 8080 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:02,081 INFO L93 Difference]: Finished difference Result 15971 states and 23501 transitions. [2023-12-15 23:40:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 23:40:02,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-15 23:40:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:02,103 INFO L225 Difference]: With dead ends: 15971 [2023-12-15 23:40:02,104 INFO L226 Difference]: Without dead ends: 10688 [2023-12-15 23:40:02,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:40:02,114 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1164 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:02,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 457 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:40:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2023-12-15 23:40:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 5502. [2023-12-15 23:40:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 1.4686420650790766) internal successors, (8079), 5501 states have internal predecessors, (8079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8079 transitions. [2023-12-15 23:40:02,239 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8079 transitions. Word has length 117 [2023-12-15 23:40:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:02,239 INFO L495 AbstractCegarLoop]: Abstraction has 5502 states and 8079 transitions. [2023-12-15 23:40:02,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8079 transitions. [2023-12-15 23:40:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 23:40:02,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:02,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:02,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:40:02,242 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:02,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:02,242 INFO L85 PathProgramCache]: Analyzing trace with hash -108061565, now seen corresponding path program 1 times [2023-12-15 23:40:02,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:02,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076511010] [2023-12-15 23:40:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:02,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:02,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:02,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076511010] [2023-12-15 23:40:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076511010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:02,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:40:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337756836] [2023-12-15 23:40:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:02,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 23:40:02,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 23:40:02,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 23:40:02,511 INFO L87 Difference]: Start difference. First operand 5502 states and 8079 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:02,555 INFO L93 Difference]: Finished difference Result 13043 states and 19188 transitions. [2023-12-15 23:40:02,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 23:40:02,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-15 23:40:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:02,569 INFO L225 Difference]: With dead ends: 13043 [2023-12-15 23:40:02,569 INFO L226 Difference]: Without dead ends: 7857 [2023-12-15 23:40:02,576 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 [2023-12-15 23:40:02,577 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 132 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:02,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 596 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:40:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7857 states. [2023-12-15 23:40:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7857 to 7855. [2023-12-15 23:40:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7855 states, 7854 states have (on average 1.4646040234275528) internal successors, (11503), 7854 states have internal predecessors, (11503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7855 states to 7855 states and 11503 transitions. [2023-12-15 23:40:02,711 INFO L78 Accepts]: Start accepts. Automaton has 7855 states and 11503 transitions. Word has length 118 [2023-12-15 23:40:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:02,711 INFO L495 AbstractCegarLoop]: Abstraction has 7855 states and 11503 transitions. [2023-12-15 23:40:02,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7855 states and 11503 transitions. [2023-12-15 23:40:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 23:40:02,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:02,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:02,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:40:02,714 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:02,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:02,714 INFO L85 PathProgramCache]: Analyzing trace with hash -259416299, now seen corresponding path program 1 times [2023-12-15 23:40:02,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:02,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319576846] [2023-12-15 23:40:02,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:02,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319576846] [2023-12-15 23:40:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319576846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:03,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:03,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:40:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690483143] [2023-12-15 23:40:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:03,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:40:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:03,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:40:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:40:03,031 INFO L87 Difference]: Start difference. First operand 7855 states and 11503 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:03,686 INFO L93 Difference]: Finished difference Result 37048 states and 53860 transitions. [2023-12-15 23:40:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:40:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-15 23:40:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:03,745 INFO L225 Difference]: With dead ends: 37048 [2023-12-15 23:40:03,746 INFO L226 Difference]: Without dead ends: 29509 [2023-12-15 23:40:03,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:40:03,766 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 2363 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:03,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 609 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:40:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29509 states. [2023-12-15 23:40:04,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29509 to 7900. [2023-12-15 23:40:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.46385618432713) internal successors, (11563), 7899 states have internal predecessors, (11563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 11563 transitions. [2023-12-15 23:40:04,073 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 11563 transitions. Word has length 118 [2023-12-15 23:40:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:04,073 INFO L495 AbstractCegarLoop]: Abstraction has 7900 states and 11563 transitions. [2023-12-15 23:40:04,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:04,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 11563 transitions. [2023-12-15 23:40:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-15 23:40:04,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:04,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:04,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:40:04,076 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:04,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:04,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1169984461, now seen corresponding path program 1 times [2023-12-15 23:40:04,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:04,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817255727] [2023-12-15 23:40:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:04,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:04,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:04,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817255727] [2023-12-15 23:40:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817255727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:04,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:04,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:40:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733850678] [2023-12-15 23:40:04,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:40:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:04,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:40:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:40:04,606 INFO L87 Difference]: Start difference. First operand 7900 states and 11563 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:05,796 INFO L93 Difference]: Finished difference Result 39579 states and 57559 transitions. [2023-12-15 23:40:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 23:40:05,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-15 23:40:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:05,865 INFO L225 Difference]: With dead ends: 39579 [2023-12-15 23:40:05,865 INFO L226 Difference]: Without dead ends: 31951 [2023-12-15 23:40:05,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2023-12-15 23:40:05,886 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1787 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:05,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 1500 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:40:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31951 states. [2023-12-15 23:40:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31951 to 7972. [2023-12-15 23:40:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7972 states, 7971 states have (on average 1.4630535691883075) internal successors, (11662), 7971 states have internal predecessors, (11662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7972 states to 7972 states and 11662 transitions. [2023-12-15 23:40:06,130 INFO L78 Accepts]: Start accepts. Automaton has 7972 states and 11662 transitions. Word has length 118 [2023-12-15 23:40:06,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:06,131 INFO L495 AbstractCegarLoop]: Abstraction has 7972 states and 11662 transitions. [2023-12-15 23:40:06,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 7972 states and 11662 transitions. [2023-12-15 23:40:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 23:40:06,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:06,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:06,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:40:06,133 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:06,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1200614413, now seen corresponding path program 1 times [2023-12-15 23:40:06,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:06,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313759444] [2023-12-15 23:40:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:06,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313759444] [2023-12-15 23:40:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313759444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:40:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938603172] [2023-12-15 23:40:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:06,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:40:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:40:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:40:06,467 INFO L87 Difference]: Start difference. First operand 7972 states and 11662 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:06,919 INFO L93 Difference]: Finished difference Result 23409 states and 34198 transitions. [2023-12-15 23:40:06,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:40:06,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2023-12-15 23:40:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:06,948 INFO L225 Difference]: With dead ends: 23409 [2023-12-15 23:40:06,949 INFO L226 Difference]: Without dead ends: 15818 [2023-12-15 23:40:06,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:40:06,965 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1604 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:06,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 524 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:40:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15818 states. [2023-12-15 23:40:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15818 to 7972. [2023-12-15 23:40:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7972 states, 7971 states have (on average 1.4614226571321038) internal successors, (11649), 7971 states have internal predecessors, (11649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7972 states to 7972 states and 11649 transitions. [2023-12-15 23:40:07,123 INFO L78 Accepts]: Start accepts. Automaton has 7972 states and 11649 transitions. Word has length 119 [2023-12-15 23:40:07,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:07,123 INFO L495 AbstractCegarLoop]: Abstraction has 7972 states and 11649 transitions. [2023-12-15 23:40:07,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:07,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7972 states and 11649 transitions. [2023-12-15 23:40:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:40:07,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:07,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:07,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:40:07,126 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:07,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 188934846, now seen corresponding path program 1 times [2023-12-15 23:40:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:07,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59691445] [2023-12-15 23:40:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:07,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:07,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59691445] [2023-12-15 23:40:07,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59691445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:07,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:07,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:40:07,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271421896] [2023-12-15 23:40:07,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:07,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:40:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:07,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:40:07,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:40:07,455 INFO L87 Difference]: Start difference. First operand 7972 states and 11649 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:07,920 INFO L93 Difference]: Finished difference Result 23527 states and 34341 transitions. [2023-12-15 23:40:07,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:40:07,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-15 23:40:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:07,943 INFO L225 Difference]: With dead ends: 23527 [2023-12-15 23:40:07,943 INFO L226 Difference]: Without dead ends: 15881 [2023-12-15 23:40:07,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:40:07,959 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1647 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:07,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 518 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:40:07,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15881 states. [2023-12-15 23:40:08,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15881 to 7900. [2023-12-15 23:40:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.4608178250411445) internal successors, (11539), 7899 states have internal predecessors, (11539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 11539 transitions. [2023-12-15 23:40:08,129 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 11539 transitions. Word has length 120 [2023-12-15 23:40:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:08,129 INFO L495 AbstractCegarLoop]: Abstraction has 7900 states and 11539 transitions. [2023-12-15 23:40:08,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 11539 transitions. [2023-12-15 23:40:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 23:40:08,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:08,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:08,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:40:08,131 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:08,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:08,132 INFO L85 PathProgramCache]: Analyzing trace with hash -121519195, now seen corresponding path program 1 times [2023-12-15 23:40:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:08,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978245090] [2023-12-15 23:40:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:08,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:08,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:08,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978245090] [2023-12-15 23:40:08,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978245090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:08,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:08,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:40:08,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970250310] [2023-12-15 23:40:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:08,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:40:08,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:08,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:40:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:40:08,427 INFO L87 Difference]: Start difference. First operand 7900 states and 11539 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:09,060 INFO L93 Difference]: Finished difference Result 16573 states and 24172 transitions. [2023-12-15 23:40:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:40:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-15 23:40:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:09,074 INFO L225 Difference]: With dead ends: 16573 [2023-12-15 23:40:09,075 INFO L226 Difference]: Without dead ends: 8837 [2023-12-15 23:40:09,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:40:09,082 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 904 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:09,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 750 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:40:09,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8837 states. [2023-12-15 23:40:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8837 to 7900. [2023-12-15 23:40:09,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.4604380301303963) internal successors, (11536), 7899 states have internal predecessors, (11536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 11536 transitions. [2023-12-15 23:40:09,282 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 11536 transitions. Word has length 120 [2023-12-15 23:40:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:09,282 INFO L495 AbstractCegarLoop]: Abstraction has 7900 states and 11536 transitions. [2023-12-15 23:40:09,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 11536 transitions. [2023-12-15 23:40:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-15 23:40:09,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:09,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:09,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:40:09,284 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:09,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1422872338, now seen corresponding path program 1 times [2023-12-15 23:40:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:09,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959506577] [2023-12-15 23:40:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:09,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:09,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959506577] [2023-12-15 23:40:09,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959506577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:09,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:09,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 23:40:09,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925127461] [2023-12-15 23:40:09,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:09,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 23:40:09,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:09,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 23:40:09,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-15 23:40:09,819 INFO L87 Difference]: Start difference. First operand 7900 states and 11536 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:12,721 INFO L93 Difference]: Finished difference Result 115637 states and 168894 transitions. [2023-12-15 23:40:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-15 23:40:12,721 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2023-12-15 23:40:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:12,867 INFO L225 Difference]: With dead ends: 115637 [2023-12-15 23:40:12,867 INFO L226 Difference]: Without dead ends: 107916 [2023-12-15 23:40:12,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=570, Invalid=1880, Unknown=0, NotChecked=0, Total=2450 [2023-12-15 23:40:12,902 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 7103 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7103 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:12,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7103 Valid, 2035 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 23:40:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107916 states. [2023-12-15 23:40:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107916 to 7909. [2023-12-15 23:40:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 1.4595346484572584) internal successors, (11542), 7908 states have internal predecessors, (11542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 11542 transitions. [2023-12-15 23:40:13,790 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 11542 transitions. Word has length 121 [2023-12-15 23:40:13,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:13,790 INFO L495 AbstractCegarLoop]: Abstraction has 7909 states and 11542 transitions. [2023-12-15 23:40:13,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 11542 transitions. [2023-12-15 23:40:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 23:40:13,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:13,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:13,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:40:13,792 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:13,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:13,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1624868017, now seen corresponding path program 1 times [2023-12-15 23:40:13,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:13,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598189935] [2023-12-15 23:40:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:14,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598189935] [2023-12-15 23:40:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598189935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:14,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:40:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170718760] [2023-12-15 23:40:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:14,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:40:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:14,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:40:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:40:14,141 INFO L87 Difference]: Start difference. First operand 7909 states and 11542 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:14,715 INFO L93 Difference]: Finished difference Result 23521 states and 34318 transitions. [2023-12-15 23:40:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:40:14,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2023-12-15 23:40:14,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:14,739 INFO L225 Difference]: With dead ends: 23521 [2023-12-15 23:40:14,740 INFO L226 Difference]: Without dead ends: 15830 [2023-12-15 23:40:14,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:40:14,750 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1522 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:14,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 575 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:40:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15830 states. [2023-12-15 23:40:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15830 to 7909. [2023-12-15 23:40:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 1.4583965604451188) internal successors, (11533), 7908 states have internal predecessors, (11533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:14,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 11533 transitions. [2023-12-15 23:40:14,932 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 11533 transitions. Word has length 122 [2023-12-15 23:40:14,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:14,932 INFO L495 AbstractCegarLoop]: Abstraction has 7909 states and 11533 transitions. [2023-12-15 23:40:14,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 11533 transitions. [2023-12-15 23:40:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:14,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:14,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:14,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:40:14,934 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:14,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1590178660, now seen corresponding path program 1 times [2023-12-15 23:40:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:14,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733735756] [2023-12-15 23:40:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:15,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:15,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733735756] [2023-12-15 23:40:15,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733735756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:15,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:40:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778544559] [2023-12-15 23:40:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:15,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:40:15,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:40:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:40:15,589 INFO L87 Difference]: Start difference. First operand 7909 states and 11533 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:16,712 INFO L93 Difference]: Finished difference Result 32825 states and 48035 transitions. [2023-12-15 23:40:16,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:40:16,713 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-15 23:40:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:16,756 INFO L225 Difference]: With dead ends: 32825 [2023-12-15 23:40:16,757 INFO L226 Difference]: Without dead ends: 30939 [2023-12-15 23:40:16,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-12-15 23:40:16,770 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 1603 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:16,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2831 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:40:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30939 states. [2023-12-15 23:40:16,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30939 to 7866. [2023-12-15 23:40:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7866 states, 7865 states have (on average 1.4581055308328035) internal successors, (11468), 7865 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7866 states to 7866 states and 11468 transitions. [2023-12-15 23:40:16,997 INFO L78 Accepts]: Start accepts. Automaton has 7866 states and 11468 transitions. Word has length 123 [2023-12-15 23:40:16,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:16,998 INFO L495 AbstractCegarLoop]: Abstraction has 7866 states and 11468 transitions. [2023-12-15 23:40:16,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7866 states and 11468 transitions. [2023-12-15 23:40:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:17,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:17,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:17,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:40:17,000 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:17,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash 3428923, now seen corresponding path program 1 times [2023-12-15 23:40:17,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:17,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669283480] [2023-12-15 23:40:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:17,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:20,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669283480] [2023-12-15 23:40:20,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669283480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:20,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:20,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2023-12-15 23:40:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614748129] [2023-12-15 23:40:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:20,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-15 23:40:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:20,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-15 23:40:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1872, Unknown=0, NotChecked=0, Total=1980 [2023-12-15 23:40:20,552 INFO L87 Difference]: Start difference. First operand 7866 states and 11468 transitions. Second operand has 45 states, 45 states have (on average 2.7333333333333334) internal successors, (123), 44 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:36,004 INFO L93 Difference]: Finished difference Result 24044 states and 35128 transitions. [2023-12-15 23:40:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-15 23:40:36,005 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.7333333333333334) internal successors, (123), 44 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-15 23:40:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:36,027 INFO L225 Difference]: With dead ends: 24044 [2023-12-15 23:40:36,027 INFO L226 Difference]: Without dead ends: 22528 [2023-12-15 23:40:36,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1002, Invalid=6308, Unknown=0, NotChecked=0, Total=7310 [2023-12-15 23:40:36,036 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 3467 mSDsluCounter, 27427 mSDsCounter, 0 mSdLazyCounter, 18718 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3467 SdHoareTripleChecker+Valid, 28449 SdHoareTripleChecker+Invalid, 18720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:36,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3467 Valid, 28449 Invalid, 18720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 18718 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-15 23:40:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22528 states. [2023-12-15 23:40:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22528 to 7898. [2023-12-15 23:40:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7898 states, 7897 states have (on average 1.4575155122198302) internal successors, (11510), 7897 states have internal predecessors, (11510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 11510 transitions. [2023-12-15 23:40:36,229 INFO L78 Accepts]: Start accepts. Automaton has 7898 states and 11510 transitions. Word has length 123 [2023-12-15 23:40:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:36,229 INFO L495 AbstractCegarLoop]: Abstraction has 7898 states and 11510 transitions. [2023-12-15 23:40:36,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.7333333333333334) internal successors, (123), 44 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7898 states and 11510 transitions. [2023-12-15 23:40:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:36,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:36,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:36,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-15 23:40:36,232 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:36,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:36,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1270528507, now seen corresponding path program 1 times [2023-12-15 23:40:36,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:36,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426127952] [2023-12-15 23:40:36,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:36,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:36,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:36,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426127952] [2023-12-15 23:40:36,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426127952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:36,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:36,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:40:36,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915747916] [2023-12-15 23:40:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:36,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:40:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:40:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:40:36,324 INFO L87 Difference]: Start difference. First operand 7898 states and 11510 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:36,380 INFO L93 Difference]: Finished difference Result 22576 states and 33128 transitions. [2023-12-15 23:40:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:40:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-15 23:40:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:36,402 INFO L225 Difference]: With dead ends: 22576 [2023-12-15 23:40:36,402 INFO L226 Difference]: Without dead ends: 15037 [2023-12-15 23:40:36,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:40:36,413 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 130 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 552 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 [2023-12-15 23:40:36,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 552 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:40:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15037 states. [2023-12-15 23:40:36,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15037 to 14635. [2023-12-15 23:40:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 14634 states have (on average 1.452302856361897) internal successors, (21253), 14634 states have internal predecessors, (21253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 21253 transitions. [2023-12-15 23:40:36,599 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 21253 transitions. Word has length 123 [2023-12-15 23:40:36,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:36,599 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 21253 transitions. [2023-12-15 23:40:36,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:36,599 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 21253 transitions. [2023-12-15 23:40:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:36,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:36,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:36,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-15 23:40:36,601 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:36,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1334305886, now seen corresponding path program 1 times [2023-12-15 23:40:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:36,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961723826] [2023-12-15 23:40:36,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:36,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961723826] [2023-12-15 23:40:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961723826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:40:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270188986] [2023-12-15 23:40:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:37,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:40:37,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:40:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:40:37,248 INFO L87 Difference]: Start difference. First operand 14635 states and 21253 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:38,104 INFO L93 Difference]: Finished difference Result 51659 states and 75187 transitions. [2023-12-15 23:40:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:40:38,105 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-15 23:40:38,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:38,153 INFO L225 Difference]: With dead ends: 51659 [2023-12-15 23:40:38,154 INFO L226 Difference]: Without dead ends: 48233 [2023-12-15 23:40:38,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2023-12-15 23:40:38,169 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2221 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:38,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 2352 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:40:38,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48233 states. [2023-12-15 23:40:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48233 to 14659. [2023-12-15 23:40:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14659 states, 14658 states have (on average 1.4524491745122117) internal successors, (21290), 14658 states have internal predecessors, (21290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14659 states to 14659 states and 21290 transitions. [2023-12-15 23:40:38,514 INFO L78 Accepts]: Start accepts. Automaton has 14659 states and 21290 transitions. Word has length 123 [2023-12-15 23:40:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:38,514 INFO L495 AbstractCegarLoop]: Abstraction has 14659 states and 21290 transitions. [2023-12-15 23:40:38,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14659 states and 21290 transitions. [2023-12-15 23:40:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:38,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:38,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:38,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-15 23:40:38,516 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:38,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1433634203, now seen corresponding path program 1 times [2023-12-15 23:40:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525124849] [2023-12-15 23:40:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:40:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:40:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:40:39,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:40:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525124849] [2023-12-15 23:40:39,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525124849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:40:39,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:40:39,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-15 23:40:39,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181605875] [2023-12-15 23:40:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:40:39,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:40:39,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:40:39,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:40:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:40:39,115 INFO L87 Difference]: Start difference. First operand 14659 states and 21290 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:40:40,318 INFO L93 Difference]: Finished difference Result 89945 states and 131003 transitions. [2023-12-15 23:40:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 23:40:40,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-15 23:40:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:40:40,413 INFO L225 Difference]: With dead ends: 89945 [2023-12-15 23:40:40,414 INFO L226 Difference]: Without dead ends: 86455 [2023-12-15 23:40:40,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2023-12-15 23:40:40,443 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1715 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 4655 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:40:40,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 4655 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:40:40,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86455 states. [2023-12-15 23:40:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86455 to 14622. [2023-12-15 23:40:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14622 states, 14621 states have (on average 1.452363039463785) internal successors, (21235), 14621 states have internal predecessors, (21235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14622 states to 14622 states and 21235 transitions. [2023-12-15 23:40:41,050 INFO L78 Accepts]: Start accepts. Automaton has 14622 states and 21235 transitions. Word has length 123 [2023-12-15 23:40:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:40:41,051 INFO L495 AbstractCegarLoop]: Abstraction has 14622 states and 21235 transitions. [2023-12-15 23:40:41,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:40:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 14622 states and 21235 transitions. [2023-12-15 23:40:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 23:40:41,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:40:41,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:41,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-15 23:40:41,055 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:40:41,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:40:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1785678621, now seen corresponding path program 1 times [2023-12-15 23:40:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:40:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940823696] [2023-12-15 23:40:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:40:41,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-15 23:40:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-15 23:40:41,084 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:40:41,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-15 23:40:41,085 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 124 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [940823696] and IpTcStrategyModuleZ3 [1918876756]. [2023-12-15 23:40:41,089 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:40:41,091 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:40:41,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:40:41 BoogieIcfgContainer [2023-12-15 23:40:41,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:40:41,094 INFO L158 Benchmark]: Toolchain (without parser) took 50912.35ms. Allocated memory was 305.1MB in the beginning and 1.3GB in the end (delta: 983.6MB). Free memory was 252.3MB in the beginning and 766.2MB in the end (delta: -513.9MB). Peak memory consumption was 470.7MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,094 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 203.4MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:40:41,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.28ms. Allocated memory is still 305.1MB. Free memory was 251.7MB in the beginning and 226.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.03ms. Allocated memory is still 305.1MB. Free memory was 226.6MB in the beginning and 222.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,097 INFO L158 Benchmark]: Boogie Preprocessor took 77.17ms. Allocated memory is still 305.1MB. Free memory was 222.4MB in the beginning and 217.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,097 INFO L158 Benchmark]: RCFGBuilder took 944.37ms. Allocated memory is still 305.1MB. Free memory was 217.6MB in the beginning and 158.4MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,101 INFO L158 Benchmark]: TraceAbstraction took 49325.50ms. Allocated memory was 305.1MB in the beginning and 1.3GB in the end (delta: 983.6MB). Free memory was 157.4MB in the beginning and 766.2MB in the end (delta: -608.8MB). Peak memory consumption was 376.3MB. Max. memory is 8.0GB. [2023-12-15 23:40:41,102 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:40:41,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 203.4MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 490.28ms. Allocated memory is still 305.1MB. Free memory was 251.7MB in the beginning and 226.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.03ms. Allocated memory is still 305.1MB. Free memory was 226.6MB in the beginning and 222.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.17ms. Allocated memory is still 305.1MB. Free memory was 222.4MB in the beginning and 217.6MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 944.37ms. Allocated memory is still 305.1MB. Free memory was 217.6MB in the beginning and 158.4MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 49325.50ms. Allocated memory was 305.1MB in the beginning and 1.3GB in the end (delta: 983.6MB). Free memory was 157.4MB in the beginning and 766.2MB in the end (delta: -608.8MB). Peak memory consumption was 376.3MB. 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: 561]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 561). Cancelled while NwaCegarLoop was analyzing trace of length 124 with TraceHistMax 1,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [940823696] and IpTcStrategyModuleZ3 [1918876756]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 200 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.3s, OverallIterations: 33, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51608 SdHoareTripleChecker+Valid, 17.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51608 mSDsluCounter, 79478 SdHoareTripleChecker+Invalid, 14.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67969 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29888 IncrementalHoareTripleChecker+Invalid, 30027 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 11509 mSDtfsCounter, 29888 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 558 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 511 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2566 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14659occurred in iteration=31, InterpolantAutomatonStates: 377, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 32 MinimizatonAttempts, 331061 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 3684 NumberOfCodeBlocks, 3684 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3652 ConstructedInterpolants, 0 QuantifiedInterpolants, 34478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 32 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