./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:47:34,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:47:35,051 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:47:35,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:47:35,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:47:35,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:47:35,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:47:35,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:47:35,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:47:35,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:47:35,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:47:35,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:47:35,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:47:35,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:47:35,096 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:47:35,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:47:35,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:47:35,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:47:35,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:47:35,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:47:35,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:47:35,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:47:35,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:47:35,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:47:35,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:47:35,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:47:35,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:47:35,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:47:35,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:47:35,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:47:35,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:47:35,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:47:35,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:47:35,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:47:35,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:47:35,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:47:35,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:47:35,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:47:35,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:47:35,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:47:35,105 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:47:35,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:47:35,106 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 [2024-10-11 03:47:35,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:47:35,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:47:35,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:47:35,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:47:35,402 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:47:35,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-11 03:47:36,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:47:37,143 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:47:37,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-11 03:47:37,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5ebedf9aa/9974f94a0b2740d1bb44ae719679f43c/FLAG0b1022a76 [2024-10-11 03:47:37,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5ebedf9aa/9974f94a0b2740d1bb44ae719679f43c [2024-10-11 03:47:37,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:47:37,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:47:37,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:47:37,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:47:37,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:47:37,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:37,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10201a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37, skipping insertion in model container [2024-10-11 03:47:37,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:37,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:47:37,821 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-10-11 03:47:37,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:47:37,891 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:47:37,949 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-10-11 03:47:37,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:47:37,994 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:47:37,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37 WrapperNode [2024-10-11 03:47:37,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:47:37,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:47:37,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:47:37,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:47:38,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,044 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-10-11 03:47:38,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:47:38,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:47:38,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:47:38,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:47:38,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,080 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]. [2024-10-11 03:47:38,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:47:38,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:47:38,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:47:38,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:47:38,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (1/1) ... [2024-10-11 03:47:38,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:47:38,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:47:38,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:47:38,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:47:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:47:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:47:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:47:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:47:38,333 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:47:38,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:47:38,904 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-10-11 03:47:38,905 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:47:38,944 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:47:38,946 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:47:38,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:47:38 BoogieIcfgContainer [2024-10-11 03:47:38,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:47:38,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:47:38,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:47:38,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:47:38,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:47:37" (1/3) ... [2024-10-11 03:47:38,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87658c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:47:38, skipping insertion in model container [2024-10-11 03:47:38,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:47:37" (2/3) ... [2024-10-11 03:47:38,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87658c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:47:38, skipping insertion in model container [2024-10-11 03:47:38,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:47:38" (3/3) ... [2024-10-11 03:47:38,955 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-11 03:47:38,975 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:47:38,975 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:47:39,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:47:39,068 INFO L333 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, 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;@21181ad6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:47:39,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:47:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 120 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 03:47:39,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:39,085 INFO L215 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] [2024-10-11 03:47:39,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:39,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1239622874, now seen corresponding path program 1 times [2024-10-11 03:47:39,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:39,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418616181] [2024-10-11 03:47:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418616181] [2024-10-11 03:47:39,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418616181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:39,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:39,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:39,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435514975] [2024-10-11 03:47:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:39,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:39,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:39,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:39,788 INFO L87 Difference]: Start difference. First operand has 121 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 120 states have internal predecessors, (209), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:40,147 INFO L93 Difference]: Finished difference Result 581 states and 936 transitions. [2024-10-11 03:47:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:47:40,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-11 03:47:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:40,170 INFO L225 Difference]: With dead ends: 581 [2024-10-11 03:47:40,170 INFO L226 Difference]: Without dead ends: 517 [2024-10-11 03:47:40,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:47:40,176 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1051 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:40,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1085 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:40,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-10-11 03:47:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 185. [2024-10-11 03:47:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4619565217391304) internal successors, (269), 184 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 269 transitions. [2024-10-11 03:47:40,233 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 269 transitions. Word has length 60 [2024-10-11 03:47:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:40,234 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 269 transitions. [2024-10-11 03:47:40,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 269 transitions. [2024-10-11 03:47:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:40,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:40,236 INFO L215 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] [2024-10-11 03:47:40,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:47:40,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:40,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash -671612213, now seen corresponding path program 1 times [2024-10-11 03:47:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:40,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770242127] [2024-10-11 03:47:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:40,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:40,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770242127] [2024-10-11 03:47:40,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770242127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:40,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:40,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:40,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879095119] [2024-10-11 03:47:40,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:40,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:40,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:40,481 INFO L87 Difference]: Start difference. First operand 185 states and 269 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:40,618 INFO L93 Difference]: Finished difference Result 663 states and 1020 transitions. [2024-10-11 03:47:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:47:40,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:40,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:40,623 INFO L225 Difference]: With dead ends: 663 [2024-10-11 03:47:40,625 INFO L226 Difference]: Without dead ends: 561 [2024-10-11 03:47:40,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:40,627 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 605 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:40,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 836 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-10-11 03:47:40,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 291. [2024-10-11 03:47:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.506896551724138) internal successors, (437), 290 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 437 transitions. [2024-10-11 03:47:40,652 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 437 transitions. Word has length 62 [2024-10-11 03:47:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:40,653 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 437 transitions. [2024-10-11 03:47:40,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 437 transitions. [2024-10-11 03:47:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:40,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:40,655 INFO L215 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] [2024-10-11 03:47:40,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:47:40,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:40,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash 713217239, now seen corresponding path program 1 times [2024-10-11 03:47:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:40,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086776321] [2024-10-11 03:47:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:40,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:40,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086776321] [2024-10-11 03:47:40,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086776321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677000385] [2024-10-11 03:47:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:40,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:40,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:40,910 INFO L87 Difference]: Start difference. First operand 291 states and 437 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:41,026 INFO L93 Difference]: Finished difference Result 764 states and 1180 transitions. [2024-10-11 03:47:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:47:41,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:41,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:41,032 INFO L225 Difference]: With dead ends: 764 [2024-10-11 03:47:41,033 INFO L226 Difference]: Without dead ends: 662 [2024-10-11 03:47:41,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:41,035 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 686 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:41,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 746 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:41,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-10-11 03:47:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 442. [2024-10-11 03:47:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.5328798185941044) internal successors, (676), 441 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 676 transitions. [2024-10-11 03:47:41,068 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 676 transitions. Word has length 62 [2024-10-11 03:47:41,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:41,069 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 676 transitions. [2024-10-11 03:47:41,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 676 transitions. [2024-10-11 03:47:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:41,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:41,074 INFO L215 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] [2024-10-11 03:47:41,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:47:41,075 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:41,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1544438657, now seen corresponding path program 1 times [2024-10-11 03:47:41,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332950150] [2024-10-11 03:47:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:41,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332950150] [2024-10-11 03:47:41,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332950150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:41,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:41,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:47:41,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682326006] [2024-10-11 03:47:41,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:41,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:47:41,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:41,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:47:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:47:41,157 INFO L87 Difference]: Start difference. First operand 442 states and 676 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:41,186 INFO L93 Difference]: Finished difference Result 1101 states and 1713 transitions. [2024-10-11 03:47:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:47:41,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:41,191 INFO L225 Difference]: With dead ends: 1101 [2024-10-11 03:47:41,191 INFO L226 Difference]: Without dead ends: 749 [2024-10-11 03:47:41,192 INFO L431 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 [2024-10-11 03:47:41,195 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 68 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:41,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 378 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:47:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-11 03:47:41,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 733. [2024-10-11 03:47:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.528688524590164) internal successors, (1119), 732 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1119 transitions. [2024-10-11 03:47:41,217 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1119 transitions. Word has length 62 [2024-10-11 03:47:41,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:41,218 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1119 transitions. [2024-10-11 03:47:41,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1119 transitions. [2024-10-11 03:47:41,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:41,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:41,222 INFO L215 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] [2024-10-11 03:47:41,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:47:41,222 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:41,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:41,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1717017920, now seen corresponding path program 1 times [2024-10-11 03:47:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806962855] [2024-10-11 03:47:41,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:41,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:41,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:41,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806962855] [2024-10-11 03:47:41,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806962855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:41,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:41,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:41,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138249259] [2024-10-11 03:47:41,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:41,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:41,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:41,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:41,565 INFO L87 Difference]: Start difference. First operand 733 states and 1119 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:41,700 INFO L93 Difference]: Finished difference Result 1378 states and 2121 transitions. [2024-10-11 03:47:41,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:47:41,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:41,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:41,704 INFO L225 Difference]: With dead ends: 1378 [2024-10-11 03:47:41,705 INFO L226 Difference]: Without dead ends: 735 [2024-10-11 03:47:41,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:47:41,710 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 204 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:41,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 524 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-10-11 03:47:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 733. [2024-10-11 03:47:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.523224043715847) internal successors, (1115), 732 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1115 transitions. [2024-10-11 03:47:41,730 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1115 transitions. Word has length 62 [2024-10-11 03:47:41,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:41,732 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1115 transitions. [2024-10-11 03:47:41,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1115 transitions. [2024-10-11 03:47:41,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:41,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:41,735 INFO L215 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] [2024-10-11 03:47:41,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:47:41,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:41,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:41,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1290402581, now seen corresponding path program 1 times [2024-10-11 03:47:41,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:41,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495304830] [2024-10-11 03:47:41,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:41,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:41,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:41,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495304830] [2024-10-11 03:47:41,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495304830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:41,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:41,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:41,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954636482] [2024-10-11 03:47:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:41,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:41,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:41,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:41,883 INFO L87 Difference]: Start difference. First operand 733 states and 1115 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:42,019 INFO L93 Difference]: Finished difference Result 1493 states and 2291 transitions. [2024-10-11 03:47:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:47:42,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:42,025 INFO L225 Difference]: With dead ends: 1493 [2024-10-11 03:47:42,026 INFO L226 Difference]: Without dead ends: 1308 [2024-10-11 03:47:42,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:42,028 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 655 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:42,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 982 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2024-10-11 03:47:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 927. [2024-10-11 03:47:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 926 states have (on average 1.529157667386609) internal successors, (1416), 926 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1416 transitions. [2024-10-11 03:47:42,058 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1416 transitions. Word has length 62 [2024-10-11 03:47:42,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:42,059 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1416 transitions. [2024-10-11 03:47:42,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,059 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1416 transitions. [2024-10-11 03:47:42,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:47:42,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:42,060 INFO L215 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] [2024-10-11 03:47:42,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:47:42,061 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:42,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1615285833, now seen corresponding path program 1 times [2024-10-11 03:47:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406027549] [2024-10-11 03:47:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:42,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:42,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:42,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406027549] [2024-10-11 03:47:42,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406027549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:42,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842548001] [2024-10-11 03:47:42,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:42,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:47:42,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:47:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:47:42,226 INFO L87 Difference]: Start difference. First operand 927 states and 1416 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:42,343 INFO L93 Difference]: Finished difference Result 1687 states and 2592 transitions. [2024-10-11 03:47:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:47:42,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 03:47:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:42,349 INFO L225 Difference]: With dead ends: 1687 [2024-10-11 03:47:42,350 INFO L226 Difference]: Without dead ends: 1502 [2024-10-11 03:47:42,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:42,351 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 662 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:42,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 761 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:42,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-10-11 03:47:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1121. [2024-10-11 03:47:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.5330357142857143) internal successors, (1717), 1120 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1717 transitions. [2024-10-11 03:47:42,382 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1717 transitions. Word has length 62 [2024-10-11 03:47:42,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:42,383 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1717 transitions. [2024-10-11 03:47:42,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1717 transitions. [2024-10-11 03:47:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:47:42,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:42,384 INFO L215 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] [2024-10-11 03:47:42,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:47:42,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:42,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:42,385 INFO L85 PathProgramCache]: Analyzing trace with hash 795107822, now seen corresponding path program 1 times [2024-10-11 03:47:42,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:42,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692325489] [2024-10-11 03:47:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:42,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:42,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692325489] [2024-10-11 03:47:42,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692325489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:42,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:42,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:47:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025378702] [2024-10-11 03:47:42,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:42,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:47:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:47:42,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:42,497 INFO L87 Difference]: Start difference. First operand 1121 states and 1717 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:42,615 INFO L93 Difference]: Finished difference Result 2214 states and 3405 transitions. [2024-10-11 03:47:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:47:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-11 03:47:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:42,619 INFO L225 Difference]: With dead ends: 2214 [2024-10-11 03:47:42,620 INFO L226 Difference]: Without dead ends: 1121 [2024-10-11 03:47:42,621 INFO L431 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 [2024-10-11 03:47:42,622 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 455 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:42,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 89 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:42,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-10-11 03:47:42,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2024-10-11 03:47:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.5125) internal successors, (1694), 1120 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1694 transitions. [2024-10-11 03:47:42,665 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1694 transitions. Word has length 63 [2024-10-11 03:47:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:42,666 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1694 transitions. [2024-10-11 03:47:42,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1694 transitions. [2024-10-11 03:47:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 03:47:42,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:42,667 INFO L215 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] [2024-10-11 03:47:42,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:47:42,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:42,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 18799975, now seen corresponding path program 1 times [2024-10-11 03:47:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:42,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739691579] [2024-10-11 03:47:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:42,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:42,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739691579] [2024-10-11 03:47:42,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739691579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:42,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:42,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:47:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483680099] [2024-10-11 03:47:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:42,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:47:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:47:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:42,767 INFO L87 Difference]: Start difference. First operand 1121 states and 1694 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:42,884 INFO L93 Difference]: Finished difference Result 2206 states and 3350 transitions. [2024-10-11 03:47:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:47:42,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-11 03:47:42,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:42,890 INFO L225 Difference]: With dead ends: 2206 [2024-10-11 03:47:42,891 INFO L226 Difference]: Without dead ends: 1121 [2024-10-11 03:47:42,892 INFO L431 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 [2024-10-11 03:47:42,894 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 426 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:42,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 105 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:42,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-10-11 03:47:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2024-10-11 03:47:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.4919642857142856) internal successors, (1671), 1120 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1671 transitions. [2024-10-11 03:47:42,923 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1671 transitions. Word has length 64 [2024-10-11 03:47:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:42,924 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1671 transitions. [2024-10-11 03:47:42,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1671 transitions. [2024-10-11 03:47:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 03:47:42,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:42,925 INFO L215 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] [2024-10-11 03:47:42,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:47:42,926 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:42,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 510143758, now seen corresponding path program 1 times [2024-10-11 03:47:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546692714] [2024-10-11 03:47:42,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:42,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:43,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:43,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546692714] [2024-10-11 03:47:43,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546692714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:43,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:43,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:47:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526042689] [2024-10-11 03:47:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:43,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:47:43,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:43,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:47:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:43,028 INFO L87 Difference]: Start difference. First operand 1121 states and 1671 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:43,137 INFO L93 Difference]: Finished difference Result 2202 states and 3300 transitions. [2024-10-11 03:47:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:47:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-11 03:47:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:43,141 INFO L225 Difference]: With dead ends: 2202 [2024-10-11 03:47:43,141 INFO L226 Difference]: Without dead ends: 1121 [2024-10-11 03:47:43,143 INFO L431 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 [2024-10-11 03:47:43,144 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 408 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:43,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 113 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-10-11 03:47:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2024-10-11 03:47:43,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.4714285714285715) internal successors, (1648), 1120 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1648 transitions. [2024-10-11 03:47:43,170 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1648 transitions. Word has length 65 [2024-10-11 03:47:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:43,170 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1648 transitions. [2024-10-11 03:47:43,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1648 transitions. [2024-10-11 03:47:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:47:43,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:43,171 INFO L215 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] [2024-10-11 03:47:43,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:47:43,171 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:43,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:43,172 INFO L85 PathProgramCache]: Analyzing trace with hash 775227347, now seen corresponding path program 1 times [2024-10-11 03:47:43,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:43,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831560531] [2024-10-11 03:47:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:43,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:43,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:43,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831560531] [2024-10-11 03:47:43,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831560531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:43,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:43,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:47:43,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428451530] [2024-10-11 03:47:43,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:43,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:47:43,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:43,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:47:43,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:43,293 INFO L87 Difference]: Start difference. First operand 1121 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:43,395 INFO L93 Difference]: Finished difference Result 2210 states and 3263 transitions. [2024-10-11 03:47:43,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:47:43,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-11 03:47:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:43,399 INFO L225 Difference]: With dead ends: 2210 [2024-10-11 03:47:43,400 INFO L226 Difference]: Without dead ends: 1121 [2024-10-11 03:47:43,401 INFO L431 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 [2024-10-11 03:47:43,402 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 425 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:43,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 97 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:47:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-10-11 03:47:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2024-10-11 03:47:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.4508928571428572) internal successors, (1625), 1120 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1625 transitions. [2024-10-11 03:47:43,424 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1625 transitions. Word has length 66 [2024-10-11 03:47:43,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:43,425 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1625 transitions. [2024-10-11 03:47:43,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1625 transitions. [2024-10-11 03:47:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 03:47:43,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:43,425 INFO L215 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] [2024-10-11 03:47:43,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:47:43,426 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:43,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:43,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1136388026, now seen corresponding path program 1 times [2024-10-11 03:47:43,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131813210] [2024-10-11 03:47:43,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:43,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:43,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:43,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131813210] [2024-10-11 03:47:43,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131813210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:43,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:43,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:47:43,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066465311] [2024-10-11 03:47:43,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:43,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:47:43,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:43,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:47:43,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:47:43,698 INFO L87 Difference]: Start difference. First operand 1121 states and 1625 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:44,059 INFO L93 Difference]: Finished difference Result 3184 states and 4645 transitions. [2024-10-11 03:47:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:47:44,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-11 03:47:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:44,067 INFO L225 Difference]: With dead ends: 3184 [2024-10-11 03:47:44,067 INFO L226 Difference]: Without dead ends: 2135 [2024-10-11 03:47:44,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:47:44,071 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 359 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:44,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 368 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2024-10-11 03:47:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1121. [2024-10-11 03:47:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.45) internal successors, (1624), 1120 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:44,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1624 transitions. [2024-10-11 03:47:44,108 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1624 transitions. Word has length 67 [2024-10-11 03:47:44,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:44,108 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1624 transitions. [2024-10-11 03:47:44,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:44,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1624 transitions. [2024-10-11 03:47:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:47:44,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:44,110 INFO L215 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] [2024-10-11 03:47:44,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:47:44,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:44,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:44,111 INFO L85 PathProgramCache]: Analyzing trace with hash -653292092, now seen corresponding path program 1 times [2024-10-11 03:47:44,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:44,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730609184] [2024-10-11 03:47:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:44,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:44,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730609184] [2024-10-11 03:47:44,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730609184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:44,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:44,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:47:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833507397] [2024-10-11 03:47:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:44,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:47:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:47:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:44,437 INFO L87 Difference]: Start difference. First operand 1121 states and 1624 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:44,970 INFO L93 Difference]: Finished difference Result 3258 states and 4736 transitions. [2024-10-11 03:47:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:47:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 03:47:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:44,978 INFO L225 Difference]: With dead ends: 3258 [2024-10-11 03:47:44,978 INFO L226 Difference]: Without dead ends: 2214 [2024-10-11 03:47:44,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:47:44,981 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 622 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:44,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 489 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:47:44,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-10-11 03:47:45,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1121. [2024-10-11 03:47:45,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.4482142857142857) internal successors, (1622), 1120 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:45,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1622 transitions. [2024-10-11 03:47:45,016 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1622 transitions. Word has length 68 [2024-10-11 03:47:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:45,017 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1622 transitions. [2024-10-11 03:47:45,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1622 transitions. [2024-10-11 03:47:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:47:45,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:45,018 INFO L215 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] [2024-10-11 03:47:45,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:47:45,018 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:45,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:45,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1272082460, now seen corresponding path program 1 times [2024-10-11 03:47:45,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:45,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904828233] [2024-10-11 03:47:45,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:45,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:45,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:45,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904828233] [2024-10-11 03:47:45,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904828233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:45,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:45,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:47:45,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838704994] [2024-10-11 03:47:45,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:45,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:47:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:45,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:47:45,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:45,274 INFO L87 Difference]: Start difference. First operand 1121 states and 1622 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:45,690 INFO L93 Difference]: Finished difference Result 3213 states and 4662 transitions. [2024-10-11 03:47:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:47:45,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 03:47:45,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:45,697 INFO L225 Difference]: With dead ends: 3213 [2024-10-11 03:47:45,698 INFO L226 Difference]: Without dead ends: 2199 [2024-10-11 03:47:45,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:47:45,701 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 406 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:45,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 411 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:47:45,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2024-10-11 03:47:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 1121. [2024-10-11 03:47:45,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.44375) internal successors, (1617), 1120 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1617 transitions. [2024-10-11 03:47:45,743 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1617 transitions. Word has length 68 [2024-10-11 03:47:45,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:45,743 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1617 transitions. [2024-10-11 03:47:45,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:45,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1617 transitions. [2024-10-11 03:47:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:47:45,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:45,744 INFO L215 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] [2024-10-11 03:47:45,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:47:45,744 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:45,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash 359902814, now seen corresponding path program 1 times [2024-10-11 03:47:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224092982] [2024-10-11 03:47:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:46,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224092982] [2024-10-11 03:47:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224092982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:46,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:46,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:47:46,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114404602] [2024-10-11 03:47:46,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:46,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:47:46,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:46,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:47:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:47:46,038 INFO L87 Difference]: Start difference. First operand 1121 states and 1617 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:46,560 INFO L93 Difference]: Finished difference Result 3243 states and 4697 transitions. [2024-10-11 03:47:46,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:47:46,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-11 03:47:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:46,568 INFO L225 Difference]: With dead ends: 3243 [2024-10-11 03:47:46,568 INFO L226 Difference]: Without dead ends: 2209 [2024-10-11 03:47:46,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:47:46,572 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 319 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:46,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 653 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:47:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-10-11 03:47:46,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1121. [2024-10-11 03:47:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.4401785714285715) internal successors, (1613), 1120 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1613 transitions. [2024-10-11 03:47:46,602 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1613 transitions. Word has length 69 [2024-10-11 03:47:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:46,602 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1613 transitions. [2024-10-11 03:47:46,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1613 transitions. [2024-10-11 03:47:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 03:47:46,604 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:46,605 INFO L215 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] [2024-10-11 03:47:46,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:47:46,605 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:46,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -336947078, now seen corresponding path program 1 times [2024-10-11 03:47:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:46,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043829106] [2024-10-11 03:47:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:47,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043829106] [2024-10-11 03:47:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043829106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:47,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:47:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640823787] [2024-10-11 03:47:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:47,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:47:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:47:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:47:47,259 INFO L87 Difference]: Start difference. First operand 1121 states and 1613 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:47,701 INFO L93 Difference]: Finished difference Result 2508 states and 3641 transitions. [2024-10-11 03:47:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:47:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-11 03:47:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:47,709 INFO L225 Difference]: With dead ends: 2508 [2024-10-11 03:47:47,709 INFO L226 Difference]: Without dead ends: 2113 [2024-10-11 03:47:47,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-10-11 03:47:47,711 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 716 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:47,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 796 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-10-11 03:47:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1100. [2024-10-11 03:47:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 1.440400363967243) internal successors, (1583), 1099 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1583 transitions. [2024-10-11 03:47:47,746 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1583 transitions. Word has length 70 [2024-10-11 03:47:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:47,746 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1583 transitions. [2024-10-11 03:47:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1583 transitions. [2024-10-11 03:47:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 03:47:47,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:47,748 INFO L215 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] [2024-10-11 03:47:47,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:47:47,748 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:47,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1325517691, now seen corresponding path program 1 times [2024-10-11 03:47:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897038647] [2024-10-11 03:47:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:48,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897038647] [2024-10-11 03:47:48,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897038647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:48,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:48,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 03:47:48,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352780346] [2024-10-11 03:47:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:48,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 03:47:48,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:48,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 03:47:48,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:47:48,875 INFO L87 Difference]: Start difference. First operand 1100 states and 1583 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:50,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:50,702 INFO L93 Difference]: Finished difference Result 3551 states and 5163 transitions. [2024-10-11 03:47:50,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 03:47:50,702 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-11 03:47:50,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:50,718 INFO L225 Difference]: With dead ends: 3551 [2024-10-11 03:47:50,718 INFO L226 Difference]: Without dead ends: 3181 [2024-10-11 03:47:50,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 03:47:50,721 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 1260 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:50,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1895 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:47:50,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2024-10-11 03:47:50,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 1135. [2024-10-11 03:47:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1134 states have (on average 1.435626102292769) internal successors, (1628), 1134 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1628 transitions. [2024-10-11 03:47:50,769 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1628 transitions. Word has length 70 [2024-10-11 03:47:50,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:50,769 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1628 transitions. [2024-10-11 03:47:50,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 17 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1628 transitions. [2024-10-11 03:47:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 03:47:50,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:50,770 INFO L215 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] [2024-10-11 03:47:50,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:47:50,771 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:50,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1837628443, now seen corresponding path program 1 times [2024-10-11 03:47:50,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:50,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309357029] [2024-10-11 03:47:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:50,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:51,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309357029] [2024-10-11 03:47:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309357029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:51,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:51,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 03:47:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871719545] [2024-10-11 03:47:51,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:51,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 03:47:51,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:51,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 03:47:51,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:47:51,449 INFO L87 Difference]: Start difference. First operand 1135 states and 1628 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:52,266 INFO L93 Difference]: Finished difference Result 4569 states and 6647 transitions. [2024-10-11 03:47:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:47:52,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-11 03:47:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:52,285 INFO L225 Difference]: With dead ends: 4569 [2024-10-11 03:47:52,288 INFO L226 Difference]: Without dead ends: 4169 [2024-10-11 03:47:52,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-11 03:47:52,292 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 832 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:52,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2183 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:47:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2024-10-11 03:47:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 1104. [2024-10-11 03:47:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1103 states have (on average 1.4369900271985494) internal successors, (1585), 1103 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1585 transitions. [2024-10-11 03:47:52,361 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1585 transitions. Word has length 70 [2024-10-11 03:47:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:52,362 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1585 transitions. [2024-10-11 03:47:52,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1585 transitions. [2024-10-11 03:47:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:47:52,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:52,363 INFO L215 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] [2024-10-11 03:47:52,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:47:52,363 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:52,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:52,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1300571653, now seen corresponding path program 1 times [2024-10-11 03:47:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:52,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858907405] [2024-10-11 03:47:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:52,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:52,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858907405] [2024-10-11 03:47:52,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858907405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:52,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:52,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:47:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318333986] [2024-10-11 03:47:52,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:52,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:47:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:52,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:47:52,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:47:52,915 INFO L87 Difference]: Start difference. First operand 1104 states and 1585 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:53,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:53,588 INFO L93 Difference]: Finished difference Result 2492 states and 3615 transitions. [2024-10-11 03:47:53,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:47:53,588 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-11 03:47:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:53,593 INFO L225 Difference]: With dead ends: 2492 [2024-10-11 03:47:53,593 INFO L226 Difference]: Without dead ends: 2122 [2024-10-11 03:47:53,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:47:53,595 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 672 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:53,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1078 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:53,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2024-10-11 03:47:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1082. [2024-10-11 03:47:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1081 states have (on average 1.4394079555966697) internal successors, (1556), 1081 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:53,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1556 transitions. [2024-10-11 03:47:53,618 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1556 transitions. Word has length 71 [2024-10-11 03:47:53,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:53,618 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1556 transitions. [2024-10-11 03:47:53,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:53,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1556 transitions. [2024-10-11 03:47:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:47:53,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:53,619 INFO L215 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] [2024-10-11 03:47:53,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:47:53,619 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:53,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1697721316, now seen corresponding path program 1 times [2024-10-11 03:47:53,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:53,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35446414] [2024-10-11 03:47:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:53,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:55,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35446414] [2024-10-11 03:47:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35446414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-10-11 03:47:55,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262529643] [2024-10-11 03:47:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:55,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 03:47:55,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 03:47:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2024-10-11 03:47:55,077 INFO L87 Difference]: Start difference. First operand 1082 states and 1556 transitions. Second operand has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:57,924 INFO L93 Difference]: Finished difference Result 5544 states and 8074 transitions. [2024-10-11 03:47:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:47:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-11 03:47:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:57,936 INFO L225 Difference]: With dead ends: 5544 [2024-10-11 03:47:57,936 INFO L226 Difference]: Without dead ends: 5175 [2024-10-11 03:47:57,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=340, Invalid=2012, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 03:47:57,940 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 912 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 5178 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:57,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 5178 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 03:47:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2024-10-11 03:47:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 1095. [2024-10-11 03:47:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.436928702010969) internal successors, (1572), 1094 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1572 transitions. [2024-10-11 03:47:57,986 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1572 transitions. Word has length 71 [2024-10-11 03:47:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:57,986 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1572 transitions. [2024-10-11 03:47:57,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.6296296296296298) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:57,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1572 transitions. [2024-10-11 03:47:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:47:57,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:57,987 INFO L215 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] [2024-10-11 03:47:57,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:47:57,987 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:57,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1185762776, now seen corresponding path program 1 times [2024-10-11 03:47:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096276687] [2024-10-11 03:47:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:57,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:58,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:58,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:58,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096276687] [2024-10-11 03:47:58,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096276687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:58,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:58,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:47:58,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199190756] [2024-10-11 03:47:58,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:58,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:47:58,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:58,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:47:58,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:47:58,155 INFO L87 Difference]: Start difference. First operand 1095 states and 1572 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:58,188 INFO L93 Difference]: Finished difference Result 2507 states and 3641 transitions. [2024-10-11 03:47:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:47:58,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-11 03:47:58,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:58,191 INFO L225 Difference]: With dead ends: 2507 [2024-10-11 03:47:58,191 INFO L226 Difference]: Without dead ends: 1498 [2024-10-11 03:47:58,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:47:58,193 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 72 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:58,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 351 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:47:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-10-11 03:47:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1487. [2024-10-11 03:47:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 1.434051144010767) internal successors, (2131), 1486 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2131 transitions. [2024-10-11 03:47:58,216 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2131 transitions. Word has length 71 [2024-10-11 03:47:58,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:58,217 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 2131 transitions. [2024-10-11 03:47:58,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2131 transitions. [2024-10-11 03:47:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:47:58,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:58,218 INFO L215 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] [2024-10-11 03:47:58,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:47:58,218 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:58,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2076693596, now seen corresponding path program 1 times [2024-10-11 03:47:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:58,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054310438] [2024-10-11 03:47:58,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:58,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:58,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:58,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054310438] [2024-10-11 03:47:58,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054310438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:58,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:58,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:47:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712188834] [2024-10-11 03:47:58,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:58,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:47:58,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:58,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:47:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:58,421 INFO L87 Difference]: Start difference. First operand 1487 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:58,449 INFO L93 Difference]: Finished difference Result 1499 states and 2147 transitions. [2024-10-11 03:47:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:47:58,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-11 03:47:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:58,452 INFO L225 Difference]: With dead ends: 1499 [2024-10-11 03:47:58,452 INFO L226 Difference]: Without dead ends: 1497 [2024-10-11 03:47:58,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:47:58,456 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:58,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:47:58,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-10-11 03:47:58,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2024-10-11 03:47:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1496 states have (on average 1.4237967914438503) internal successors, (2130), 1496 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2130 transitions. [2024-10-11 03:47:58,475 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2130 transitions. Word has length 71 [2024-10-11 03:47:58,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:58,475 INFO L471 AbstractCegarLoop]: Abstraction has 1497 states and 2130 transitions. [2024-10-11 03:47:58,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2130 transitions. [2024-10-11 03:47:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-11 03:47:58,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:58,477 INFO L215 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] [2024-10-11 03:47:58,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:47:58,477 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:58,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1823918802, now seen corresponding path program 1 times [2024-10-11 03:47:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465219129] [2024-10-11 03:47:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:59,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:59,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465219129] [2024-10-11 03:47:59,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465219129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:59,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:59,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:47:59,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982965609] [2024-10-11 03:47:59,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:59,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:47:59,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:47:59,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:47:59,003 INFO L87 Difference]: Start difference. First operand 1497 states and 2130 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:59,582 INFO L93 Difference]: Finished difference Result 3465 states and 4967 transitions. [2024-10-11 03:47:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:47:59,583 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-11 03:47:59,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:59,587 INFO L225 Difference]: With dead ends: 3465 [2024-10-11 03:47:59,587 INFO L226 Difference]: Without dead ends: 2909 [2024-10-11 03:47:59,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:47:59,589 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 658 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:59,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1476 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2024-10-11 03:47:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1478. [2024-10-11 03:47:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 1.4258632362897765) internal successors, (2106), 1477 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2106 transitions. [2024-10-11 03:47:59,615 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2106 transitions. Word has length 72 [2024-10-11 03:47:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:47:59,616 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 2106 transitions. [2024-10-11 03:47:59,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2106 transitions. [2024-10-11 03:47:59,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:47:59,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:47:59,617 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:47:59,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:47:59,618 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:47:59,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:47:59,618 INFO L85 PathProgramCache]: Analyzing trace with hash 738851485, now seen corresponding path program 1 times [2024-10-11 03:47:59,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:47:59,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140181433] [2024-10-11 03:47:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:47:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:47:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:47:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:47:59,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:47:59,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140181433] [2024-10-11 03:47:59,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140181433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:47:59,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:47:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:47:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872447870] [2024-10-11 03:47:59,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:47:59,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:47:59,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:47:59,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:47:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:47:59,753 INFO L87 Difference]: Start difference. First operand 1478 states and 2106 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:47:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:47:59,972 INFO L93 Difference]: Finished difference Result 4920 states and 7106 transitions. [2024-10-11 03:47:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:47:59,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-11 03:47:59,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:47:59,978 INFO L225 Difference]: With dead ends: 4920 [2024-10-11 03:47:59,979 INFO L226 Difference]: Without dead ends: 3509 [2024-10-11 03:47:59,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:47:59,981 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 716 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:47:59,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 272 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:47:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2024-10-11 03:48:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3197. [2024-10-11 03:48:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 1.4311639549436797) internal successors, (4574), 3196 states have internal predecessors, (4574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4574 transitions. [2024-10-11 03:48:00,023 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4574 transitions. Word has length 96 [2024-10-11 03:48:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:00,023 INFO L471 AbstractCegarLoop]: Abstraction has 3197 states and 4574 transitions. [2024-10-11 03:48:00,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4574 transitions. [2024-10-11 03:48:00,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:48:00,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:00,025 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:00,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 03:48:00,025 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:00,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1161419939, now seen corresponding path program 1 times [2024-10-11 03:48:00,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:00,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87274781] [2024-10-11 03:48:00,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:00,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:00,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:00,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:00,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87274781] [2024-10-11 03:48:00,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87274781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:00,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:48:00,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453468159] [2024-10-11 03:48:00,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:00,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:48:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:48:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:48:00,157 INFO L87 Difference]: Start difference. First operand 3197 states and 4574 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:00,394 INFO L93 Difference]: Finished difference Result 11565 states and 16742 transitions. [2024-10-11 03:48:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:48:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-11 03:48:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:00,409 INFO L225 Difference]: With dead ends: 11565 [2024-10-11 03:48:00,409 INFO L226 Difference]: Without dead ends: 8435 [2024-10-11 03:48:00,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:48:00,415 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 801 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:00,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 274 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:48:00,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8435 states. [2024-10-11 03:48:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8435 to 6945. [2024-10-11 03:48:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 1.4320276497695852) internal successors, (9944), 6944 states have internal predecessors, (9944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 9944 transitions. [2024-10-11 03:48:00,560 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 9944 transitions. Word has length 96 [2024-10-11 03:48:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:00,560 INFO L471 AbstractCegarLoop]: Abstraction has 6945 states and 9944 transitions. [2024-10-11 03:48:00,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 9944 transitions. [2024-10-11 03:48:00,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:48:00,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:00,562 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:00,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:48:00,563 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:00,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:00,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1671968983, now seen corresponding path program 1 times [2024-10-11 03:48:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:00,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994327180] [2024-10-11 03:48:00,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:00,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:00,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994327180] [2024-10-11 03:48:00,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994327180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:00,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:00,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:48:00,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583831987] [2024-10-11 03:48:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:00,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:48:00,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:00,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:48:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:48:00,679 INFO L87 Difference]: Start difference. First operand 6945 states and 9944 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:00,977 INFO L93 Difference]: Finished difference Result 20125 states and 29082 transitions. [2024-10-11 03:48:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:48:00,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-11 03:48:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:01,005 INFO L225 Difference]: With dead ends: 20125 [2024-10-11 03:48:01,005 INFO L226 Difference]: Without dead ends: 13247 [2024-10-11 03:48:01,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:48:01,018 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 658 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:01,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 337 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:48:01,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2024-10-11 03:48:01,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 10635. [2024-10-11 03:48:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10635 states, 10634 states have (on average 1.4355839759262743) internal successors, (15266), 10634 states have internal predecessors, (15266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10635 states to 10635 states and 15266 transitions. [2024-10-11 03:48:01,178 INFO L78 Accepts]: Start accepts. Automaton has 10635 states and 15266 transitions. Word has length 96 [2024-10-11 03:48:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:01,178 INFO L471 AbstractCegarLoop]: Abstraction has 10635 states and 15266 transitions. [2024-10-11 03:48:01,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 10635 states and 15266 transitions. [2024-10-11 03:48:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:48:01,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:01,180 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:01,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 03:48:01,180 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:01,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1069576389, now seen corresponding path program 1 times [2024-10-11 03:48:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856761023] [2024-10-11 03:48:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:01,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:01,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856761023] [2024-10-11 03:48:01,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856761023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:01,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:01,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:48:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389332564] [2024-10-11 03:48:01,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:01,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:48:01,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:48:01,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:48:01,323 INFO L87 Difference]: Start difference. First operand 10635 states and 15266 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:01,377 INFO L93 Difference]: Finished difference Result 18775 states and 26972 transitions. [2024-10-11 03:48:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:48:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-11 03:48:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:01,395 INFO L225 Difference]: With dead ends: 18775 [2024-10-11 03:48:01,395 INFO L226 Difference]: Without dead ends: 10152 [2024-10-11 03:48:01,407 INFO L431 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 [2024-10-11 03:48:01,408 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 65 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:01,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 318 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:48:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2024-10-11 03:48:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 10150. [2024-10-11 03:48:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10150 states, 10149 states have (on average 1.421617893388511) internal successors, (14428), 10149 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10150 states to 10150 states and 14428 transitions. [2024-10-11 03:48:01,542 INFO L78 Accepts]: Start accepts. Automaton has 10150 states and 14428 transitions. Word has length 96 [2024-10-11 03:48:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:01,542 INFO L471 AbstractCegarLoop]: Abstraction has 10150 states and 14428 transitions. [2024-10-11 03:48:01,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 10150 states and 14428 transitions. [2024-10-11 03:48:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-11 03:48:01,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:01,545 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:01,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 03:48:01,545 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:01,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash -322974653, now seen corresponding path program 1 times [2024-10-11 03:48:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149780003] [2024-10-11 03:48:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:48:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:01,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149780003] [2024-10-11 03:48:01,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149780003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:01,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:01,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:48:01,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434995462] [2024-10-11 03:48:01,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:01,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:48:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:01,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:48:01,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:48:01,661 INFO L87 Difference]: Start difference. First operand 10150 states and 14428 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:01,719 INFO L93 Difference]: Finished difference Result 19330 states and 27414 transitions. [2024-10-11 03:48:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:48:01,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 [2024-10-11 03:48:01,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:01,737 INFO L225 Difference]: With dead ends: 19330 [2024-10-11 03:48:01,737 INFO L226 Difference]: Without dead ends: 9261 [2024-10-11 03:48:01,750 INFO L431 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 [2024-10-11 03:48:01,750 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 61 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:01,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:48:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9261 states. [2024-10-11 03:48:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9261 to 8989. [2024-10-11 03:48:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8989 states, 8988 states have (on average 1.4049844236760125) internal successors, (12628), 8988 states have internal predecessors, (12628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8989 states to 8989 states and 12628 transitions. [2024-10-11 03:48:01,991 INFO L78 Accepts]: Start accepts. Automaton has 8989 states and 12628 transitions. Word has length 120 [2024-10-11 03:48:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:01,991 INFO L471 AbstractCegarLoop]: Abstraction has 8989 states and 12628 transitions. [2024-10-11 03:48:01,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 8989 states and 12628 transitions. [2024-10-11 03:48:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 03:48:01,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:01,994 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:01,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 03:48:01,995 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:01,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2026101219, now seen corresponding path program 1 times [2024-10-11 03:48:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:01,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467487199] [2024-10-11 03:48:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:01,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:48:02,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467487199] [2024-10-11 03:48:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467487199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:48:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977306613] [2024-10-11 03:48:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:02,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:48:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:02,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:48:02,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:48:02,118 INFO L87 Difference]: Start difference. First operand 8989 states and 12628 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) [2024-10-11 03:48:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:02,172 INFO L93 Difference]: Finished difference Result 17023 states and 23834 transitions. [2024-10-11 03:48:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:48:02,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 121 [2024-10-11 03:48:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:02,188 INFO L225 Difference]: With dead ends: 17023 [2024-10-11 03:48:02,188 INFO L226 Difference]: Without dead ends: 8109 [2024-10-11 03:48:02,199 INFO L431 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 [2024-10-11 03:48:02,200 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 54 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:02,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:48:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2024-10-11 03:48:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7855. [2024-10-11 03:48:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7855 states, 7854 states have (on average 1.3832442067736186) internal successors, (10864), 7854 states have internal predecessors, (10864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7855 states to 7855 states and 10864 transitions. [2024-10-11 03:48:02,305 INFO L78 Accepts]: Start accepts. Automaton has 7855 states and 10864 transitions. Word has length 121 [2024-10-11 03:48:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:02,306 INFO L471 AbstractCegarLoop]: Abstraction has 7855 states and 10864 transitions. [2024-10-11 03:48:02,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) [2024-10-11 03:48:02,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7855 states and 10864 transitions. [2024-10-11 03:48:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-11 03:48:02,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:02,308 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:02,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 03:48:02,308 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:02,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash -524505914, now seen corresponding path program 1 times [2024-10-11 03:48:02,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:02,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333504291] [2024-10-11 03:48:02,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:02,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:48:02,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:02,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333504291] [2024-10-11 03:48:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333504291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:48:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056449625] [2024-10-11 03:48:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:02,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:48:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:02,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:48:02,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:48:02,426 INFO L87 Difference]: Start difference. First operand 7855 states and 10864 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2024-10-11 03:48:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:02,543 INFO L93 Difference]: Finished difference Result 22491 states and 30922 transitions. [2024-10-11 03:48:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:48:02,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 122 [2024-10-11 03:48:02,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:02,571 INFO L225 Difference]: With dead ends: 22491 [2024-10-11 03:48:02,572 INFO L226 Difference]: Without dead ends: 14711 [2024-10-11 03:48:02,582 INFO L431 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 [2024-10-11 03:48:02,583 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 47 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:02,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:48:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14711 states. [2024-10-11 03:48:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14711 to 13533. [2024-10-11 03:48:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13533 states, 13532 states have (on average 1.363878214602424) internal successors, (18456), 13532 states have internal predecessors, (18456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 18456 transitions. [2024-10-11 03:48:02,883 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 18456 transitions. Word has length 122 [2024-10-11 03:48:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:02,883 INFO L471 AbstractCegarLoop]: Abstraction has 13533 states and 18456 transitions. [2024-10-11 03:48:02,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2024-10-11 03:48:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 18456 transitions. [2024-10-11 03:48:02,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 03:48:02,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:02,886 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:02,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 03:48:02,887 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:02,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash 855611002, now seen corresponding path program 1 times [2024-10-11 03:48:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:02,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372416450] [2024-10-11 03:48:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:02,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:02,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372416450] [2024-10-11 03:48:02,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372416450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:48:02,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:48:02,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:48:02,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645921465] [2024-10-11 03:48:02,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:48:02,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:48:02,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:48:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:48:02,992 INFO L87 Difference]: Start difference. First operand 13533 states and 18456 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) [2024-10-11 03:48:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:03,059 INFO L93 Difference]: Finished difference Result 23637 states and 32179 transitions. [2024-10-11 03:48:03,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:48:03,060 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 [2024-10-11 03:48:03,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:03,080 INFO L225 Difference]: With dead ends: 23637 [2024-10-11 03:48:03,080 INFO L226 Difference]: Without dead ends: 10179 [2024-10-11 03:48:03,095 INFO L431 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 [2024-10-11 03:48:03,095 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 69 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:03,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:48:03,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2024-10-11 03:48:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 10009. [2024-10-11 03:48:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10009 states, 10008 states have (on average 1.34052757793765) internal successors, (13416), 10008 states have internal predecessors, (13416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10009 states to 10009 states and 13416 transitions. [2024-10-11 03:48:03,344 INFO L78 Accepts]: Start accepts. Automaton has 10009 states and 13416 transitions. Word has length 123 [2024-10-11 03:48:03,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:03,345 INFO L471 AbstractCegarLoop]: Abstraction has 10009 states and 13416 transitions. [2024-10-11 03:48:03,345 INFO L472 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) [2024-10-11 03:48:03,346 INFO L276 IsEmpty]: Start isEmpty. Operand 10009 states and 13416 transitions. [2024-10-11 03:48:03,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 03:48:03,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:03,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:03,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 03:48:03,350 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:03,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:03,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1186335906, now seen corresponding path program 1 times [2024-10-11 03:48:03,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:03,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851783486] [2024-10-11 03:48:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:03,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:04,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:04,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851783486] [2024-10-11 03:48:04,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851783486] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:48:04,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487744321] [2024-10-11 03:48:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:04,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:48:04,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:48:04,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:48:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:04,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 03:48:04,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:48:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:48:04,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:48:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:48:04,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487744321] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:48:04,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:48:04,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 18 [2024-10-11 03:48:04,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324579371] [2024-10-11 03:48:04,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:48:04,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 03:48:04,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:04,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 03:48:04,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:48:04,777 INFO L87 Difference]: Start difference. First operand 10009 states and 13416 transitions. Second operand has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:07,046 INFO L93 Difference]: Finished difference Result 59735 states and 80474 transitions. [2024-10-11 03:48:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-11 03:48:07,047 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 0 states have call successors, (0), 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 [2024-10-11 03:48:07,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:07,145 INFO L225 Difference]: With dead ends: 59735 [2024-10-11 03:48:07,145 INFO L226 Difference]: Without dead ends: 49833 [2024-10-11 03:48:07,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=762, Invalid=3398, Unknown=0, NotChecked=0, Total=4160 [2024-10-11 03:48:07,171 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 4319 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4319 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:07,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4319 Valid, 1155 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 03:48:07,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49833 states. [2024-10-11 03:48:07,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49833 to 38541. [2024-10-11 03:48:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38541 states, 38540 states have (on average 1.3149974052932019) internal successors, (50680), 38540 states have internal predecessors, (50680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:07,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38541 states to 38541 states and 50680 transitions. [2024-10-11 03:48:07,803 INFO L78 Accepts]: Start accepts. Automaton has 38541 states and 50680 transitions. Word has length 123 [2024-10-11 03:48:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:07,804 INFO L471 AbstractCegarLoop]: Abstraction has 38541 states and 50680 transitions. [2024-10-11 03:48:07,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.11111111111111) internal successors, (344), 18 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 38541 states and 50680 transitions. [2024-10-11 03:48:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 03:48:07,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:07,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:07,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:48:08,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:08,010 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:08,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:08,011 INFO L85 PathProgramCache]: Analyzing trace with hash -976651484, now seen corresponding path program 1 times [2024-10-11 03:48:08,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:08,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935324013] [2024-10-11 03:48:08,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:08,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:08,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935324013] [2024-10-11 03:48:08,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935324013] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:48:08,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383371699] [2024-10-11 03:48:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:08,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:08,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:48:08,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:48:08,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:48:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:08,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-11 03:48:08,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:48:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:10,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:48:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:13,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383371699] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:48:13,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:48:13,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 16] total 34 [2024-10-11 03:48:13,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927363195] [2024-10-11 03:48:13,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:48:13,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-11 03:48:13,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:13,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-11 03:48:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1011, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 03:48:13,463 INFO L87 Difference]: Start difference. First operand 38541 states and 50680 transitions. Second operand has 35 states, 35 states have (on average 8.571428571428571) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:17,686 INFO L93 Difference]: Finished difference Result 252360 states and 332648 transitions. [2024-10-11 03:48:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-11 03:48:17,687 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 8.571428571428571) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 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 124 [2024-10-11 03:48:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:18,061 INFO L225 Difference]: With dead ends: 252360 [2024-10-11 03:48:18,061 INFO L226 Difference]: Without dead ends: 219936 [2024-10-11 03:48:18,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2365 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1318, Invalid=7238, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 03:48:18,145 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 5653 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 4365 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 4453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:18,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5653 Valid, 4401 Invalid, 4453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4365 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 03:48:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219936 states. [2024-10-11 03:48:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219936 to 90900. [2024-10-11 03:48:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90900 states, 90899 states have (on average 1.3116205898854774) internal successors, (119225), 90899 states have internal predecessors, (119225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90900 states to 90900 states and 119225 transitions. [2024-10-11 03:48:20,638 INFO L78 Accepts]: Start accepts. Automaton has 90900 states and 119225 transitions. Word has length 124 [2024-10-11 03:48:20,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:20,640 INFO L471 AbstractCegarLoop]: Abstraction has 90900 states and 119225 transitions. [2024-10-11 03:48:20,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.571428571428571) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:20,641 INFO L276 IsEmpty]: Start isEmpty. Operand 90900 states and 119225 transitions. [2024-10-11 03:48:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 03:48:20,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:20,652 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:20,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:48:20,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:20,853 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:20,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:20,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1352632350, now seen corresponding path program 1 times [2024-10-11 03:48:20,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:20,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306823485] [2024-10-11 03:48:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:20,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:21,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:21,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306823485] [2024-10-11 03:48:21,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306823485] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:48:21,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081809] [2024-10-11 03:48:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:21,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:48:21,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:48:21,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:48:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:21,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 03:48:21,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:48:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:22,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:48:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:23,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081809] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:48:23,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:48:23,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-10-11 03:48:23,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458450756] [2024-10-11 03:48:23,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:48:23,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 03:48:23,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:48:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 03:48:23,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-10-11 03:48:23,563 INFO L87 Difference]: Start difference. First operand 90900 states and 119225 transitions. Second operand has 31 states, 31 states have (on average 10.709677419354838) internal successors, (332), 30 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:48:31,387 INFO L93 Difference]: Finished difference Result 757340 states and 984903 transitions. [2024-10-11 03:48:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-10-11 03:48:31,388 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 10.709677419354838) internal successors, (332), 30 states have internal predecessors, (332), 0 states have call successors, (0), 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 124 [2024-10-11 03:48:31,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:48:32,680 INFO L225 Difference]: With dead ends: 757340 [2024-10-11 03:48:32,680 INFO L226 Difference]: Without dead ends: 671227 [2024-10-11 03:48:33,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4343 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2710, Invalid=13292, Unknown=0, NotChecked=0, Total=16002 [2024-10-11 03:48:33,191 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 2980 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2980 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:48:33,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2980 Valid, 2140 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 03:48:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671227 states. [2024-10-11 03:48:39,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671227 to 463836. [2024-10-11 03:48:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463836 states, 463835 states have (on average 1.3005724018239244) internal successors, (603251), 463835 states have internal predecessors, (603251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463836 states to 463836 states and 603251 transitions. [2024-10-11 03:48:42,108 INFO L78 Accepts]: Start accepts. Automaton has 463836 states and 603251 transitions. Word has length 124 [2024-10-11 03:48:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:48:42,108 INFO L471 AbstractCegarLoop]: Abstraction has 463836 states and 603251 transitions. [2024-10-11 03:48:42,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.709677419354838) internal successors, (332), 30 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:48:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 463836 states and 603251 transitions. [2024-10-11 03:48:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-11 03:48:42,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:48:42,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:48:42,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 03:48:42,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:42,333 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:48:42,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:48:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1068819171, now seen corresponding path program 1 times [2024-10-11 03:48:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:48:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953954070] [2024-10-11 03:48:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:48:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:48:43,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:48:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953954070] [2024-10-11 03:48:43,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953954070] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:48:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834934308] [2024-10-11 03:48:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:48:43,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:48:43,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:48:43,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:48:43,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 03:48:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:48:43,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 03:48:43,386 INFO L278 TraceCheckSpWp]: Computing forward predicates...