./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/psyco/psyco_net_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/psyco/psyco_net_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:34:28,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:34:28,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:34:28,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:34:28,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:34:28,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:34:28,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:34:28,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:34:28,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:34:28,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:34:28,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:34:28,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:34:28,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:34:28,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:34:28,303 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:34:28,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:34:28,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:34:28,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:34:28,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:34:28,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:34:28,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:34:28,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:34:28,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:34:28,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:34:28,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:34:28,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:34:28,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:34:28,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:34:28,308 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:34:28,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:34:28,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:34:28,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:34:28,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:34:28,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:34:28,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:34:28,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:34:28,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:34:28,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:34:28,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:34:28,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:34:28,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:34:28,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:34:28,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 [2024-11-16 04:34:28,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:34:28,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:34:28,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:34:28,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:34:28,490 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:34:28,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_net_1.c [2024-11-16 04:34:29,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:34:30,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:34:30,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c [2024-11-16 04:34:30,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fbb441a9/4143494b70de44fca648b2e943a1bcc8/FLAG0dfe983f8 [2024-11-16 04:34:30,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fbb441a9/4143494b70de44fca648b2e943a1bcc8 [2024-11-16 04:34:30,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:34:30,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:34:30,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:34:30,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:34:30,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:34:30,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:34:30" (1/1) ... [2024-11-16 04:34:30,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f488ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:30, skipping insertion in model container [2024-11-16 04:34:30,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:34:30" (1/1) ... [2024-11-16 04:34:30,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:34:31,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2024-11-16 04:34:31,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:34:31,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:34:32,460 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2024-11-16 04:34:32,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:34:32,505 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:34:32,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32 WrapperNode [2024-11-16 04:34:32,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:34:32,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:34:32,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:34:32,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:34:32,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:32,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:33,541 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53158 [2024-11-16 04:34:33,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:34:33,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:34:33,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:34:33,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:34:33,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:33,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:33,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:33,902 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]. [2024-11-16 04:34:33,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:33,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:34:34,747 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:34:34,747 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:34:34,747 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:34:34,748 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (1/1) ... [2024-11-16 04:34:34,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:34:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:34:34,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:34:34,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:34:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:34:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:34:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:34:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:34:35,394 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:34:35,396 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:34:48,082 INFO L? ?]: Removed 10714 outVars from TransFormulas that were not future-live. [2024-11-16 04:34:48,083 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:34:48,184 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:34:48,185 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:34:48,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:34:48 BoogieIcfgContainer [2024-11-16 04:34:48,185 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:34:48,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:34:48,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:34:48,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:34:48,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:34:30" (1/3) ... [2024-11-16 04:34:48,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c6948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:34:48, skipping insertion in model container [2024-11-16 04:34:48,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:34:32" (2/3) ... [2024-11-16 04:34:48,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143c6948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:34:48, skipping insertion in model container [2024-11-16 04:34:48,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:34:48" (3/3) ... [2024-11-16 04:34:48,194 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_net_1.c [2024-11-16 04:34:48,314 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:34:48,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:34:48,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:34:48,546 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;@3b54198b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:34:48,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:34:48,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 9214 states, 9212 states have (on average 1.9991315675206254) internal successors, (18416), 9213 states have internal predecessors, (18416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:48,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 04:34:48,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:48,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:34:48,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:48,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:48,590 INFO L85 PathProgramCache]: Analyzing trace with hash 174385357, now seen corresponding path program 1 times [2024-11-16 04:34:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132450273] [2024-11-16 04:34:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:48,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:48,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132450273] [2024-11-16 04:34:48,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132450273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:48,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:48,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:34:48,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21839099] [2024-11-16 04:34:48,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:48,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 04:34:48,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:48,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 04:34:48,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:34:48,873 INFO L87 Difference]: Start difference. First operand has 9214 states, 9212 states have (on average 1.9991315675206254) internal successors, (18416), 9213 states have internal predecessors, (18416), 0 states have call successors, (0), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:49,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:34:49,119 INFO L93 Difference]: Finished difference Result 17703 states and 35385 transitions. [2024-11-16 04:34:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 04:34:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2024-11-16 04:34:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:34:49,171 INFO L225 Difference]: With dead ends: 17703 [2024-11-16 04:34:49,171 INFO L226 Difference]: Without dead ends: 8282 [2024-11-16 04:34:49,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 04:34:49,188 INFO L432 NwaCegarLoop]: 14149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14149 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:34:49,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14149 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 04:34:49,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8282 states. [2024-11-16 04:34:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8282 to 8282. [2024-11-16 04:34:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 1.569737954353339) internal successors, (12999), 8281 states have internal predecessors, (12999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 12999 transitions. [2024-11-16 04:34:49,371 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 12999 transitions. Word has length 11 [2024-11-16 04:34:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:34:49,371 INFO L471 AbstractCegarLoop]: Abstraction has 8282 states and 12999 transitions. [2024-11-16 04:34:49,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 12999 transitions. [2024-11-16 04:34:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 04:34:49,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:49,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:34:49,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:34:49,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:49,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1707382132, now seen corresponding path program 1 times [2024-11-16 04:34:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:49,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62542459] [2024-11-16 04:34:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:49,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:49,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:49,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62542459] [2024-11-16 04:34:49,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62542459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:49,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:49,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:34:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872178347] [2024-11-16 04:34:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:49,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:34:49,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:34:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:34:49,501 INFO L87 Difference]: Start difference. First operand 8282 states and 12999 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:34:50,905 INFO L93 Difference]: Finished difference Result 16566 states and 26001 transitions. [2024-11-16 04:34:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:34:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-11-16 04:34:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:34:50,930 INFO L225 Difference]: With dead ends: 16566 [2024-11-16 04:34:50,931 INFO L226 Difference]: Without dead ends: 8286 [2024-11-16 04:34:50,941 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 [2024-11-16 04:34:50,942 INFO L432 NwaCegarLoop]: 12998 mSDtfsCounter, 4 mSDsluCounter, 11522 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24520 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:34:50,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24520 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:34:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2024-11-16 04:34:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 8286. [2024-11-16 04:34:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 1.5694628847314425) internal successors, (13003), 8285 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 13003 transitions. [2024-11-16 04:34:51,099 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 13003 transitions. Word has length 12 [2024-11-16 04:34:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:34:51,100 INFO L471 AbstractCegarLoop]: Abstraction has 8286 states and 13003 transitions. [2024-11-16 04:34:51,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 13003 transitions. [2024-11-16 04:34:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-16 04:34:51,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:51,101 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:34:51,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:34:51,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:51,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2004900392, now seen corresponding path program 1 times [2024-11-16 04:34:51,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:51,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376648512] [2024-11-16 04:34:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:51,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:51,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376648512] [2024-11-16 04:34:51,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376648512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:51,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:51,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:34:51,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934259403] [2024-11-16 04:34:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:51,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:34:51,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:51,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:34:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:34:51,208 INFO L87 Difference]: Start difference. First operand 8286 states and 13003 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:34:52,731 INFO L93 Difference]: Finished difference Result 16577 states and 26013 transitions. [2024-11-16 04:34:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:34:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2024-11-16 04:34:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:34:52,786 INFO L225 Difference]: With dead ends: 16577 [2024-11-16 04:34:52,786 INFO L226 Difference]: Without dead ends: 8294 [2024-11-16 04:34:52,797 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 [2024-11-16 04:34:52,798 INFO L432 NwaCegarLoop]: 12998 mSDtfsCounter, 330 mSDsluCounter, 11199 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 24197 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:34:52,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 24197 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:34:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8294 states. [2024-11-16 04:34:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8294 to 8291. [2024-11-16 04:34:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8291 states, 8290 states have (on average 1.5691194209891435) internal successors, (13008), 8290 states have internal predecessors, (13008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:52,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8291 states to 8291 states and 13008 transitions. [2024-11-16 04:34:52,929 INFO L78 Accepts]: Start accepts. Automaton has 8291 states and 13008 transitions. Word has length 18 [2024-11-16 04:34:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:34:52,929 INFO L471 AbstractCegarLoop]: Abstraction has 8291 states and 13008 transitions. [2024-11-16 04:34:52,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8291 states and 13008 transitions. [2024-11-16 04:34:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-16 04:34:52,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:52,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:34:52,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:34:52,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:52,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1248018935, now seen corresponding path program 1 times [2024-11-16 04:34:52,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:52,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678526392] [2024-11-16 04:34:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:52,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:52,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678526392] [2024-11-16 04:34:52,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678526392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:52,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:52,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:34:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375834380] [2024-11-16 04:34:52,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:53,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:34:53,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:53,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:34:53,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:34:53,001 INFO L87 Difference]: Start difference. First operand 8291 states and 13008 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:55,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:34:55,602 INFO L93 Difference]: Finished difference Result 16502 states and 25895 transitions. [2024-11-16 04:34:55,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:34:55,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-16 04:34:55,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:34:55,615 INFO L225 Difference]: With dead ends: 16502 [2024-11-16 04:34:55,616 INFO L226 Difference]: Without dead ends: 8172 [2024-11-16 04:34:55,626 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 [2024-11-16 04:34:55,627 INFO L432 NwaCegarLoop]: 10000 mSDtfsCounter, 10371 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 1749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10371 SdHoareTripleChecker+Valid, 10003 SdHoareTripleChecker+Invalid, 4913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1749 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:34:55,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10371 Valid, 10003 Invalid, 4913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1749 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 04:34:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2024-11-16 04:34:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 8169. [2024-11-16 04:34:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8169 states, 8168 states have (on average 1.51628305582762) internal successors, (12385), 8168 states have internal predecessors, (12385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8169 states to 8169 states and 12385 transitions. [2024-11-16 04:34:55,730 INFO L78 Accepts]: Start accepts. Automaton has 8169 states and 12385 transitions. Word has length 22 [2024-11-16 04:34:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:34:55,731 INFO L471 AbstractCegarLoop]: Abstraction has 8169 states and 12385 transitions. [2024-11-16 04:34:55,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8169 states and 12385 transitions. [2024-11-16 04:34:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 04:34:55,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:55,732 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:34:55,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:34:55,732 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:55,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1382445791, now seen corresponding path program 1 times [2024-11-16 04:34:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:55,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159991889] [2024-11-16 04:34:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:55,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:55,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:55,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159991889] [2024-11-16 04:34:55,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159991889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:55,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:55,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:34:55,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383658031] [2024-11-16 04:34:55,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:55,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:34:55,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:55,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:34:55,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:34:55,808 INFO L87 Difference]: Start difference. First operand 8169 states and 12385 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:34:58,487 INFO L93 Difference]: Finished difference Result 24501 states and 37149 transitions. [2024-11-16 04:34:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:34:58,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 04:34:58,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:34:58,513 INFO L225 Difference]: With dead ends: 24501 [2024-11-16 04:34:58,513 INFO L226 Difference]: Without dead ends: 16285 [2024-11-16 04:34:58,521 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 [2024-11-16 04:34:58,523 INFO L432 NwaCegarLoop]: 10926 mSDtfsCounter, 10932 mSDsluCounter, 10883 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 1345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10932 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1345 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:34:58,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10932 Valid, 21809 Invalid, 4238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1345 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 04:34:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16285 states. [2024-11-16 04:34:58,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16285 to 14969. [2024-11-16 04:34:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14969 states, 14968 states have (on average 1.5563869588455372) internal successors, (23296), 14968 states have internal predecessors, (23296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:58,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14969 states to 14969 states and 23296 transitions. [2024-11-16 04:34:58,717 INFO L78 Accepts]: Start accepts. Automaton has 14969 states and 23296 transitions. Word has length 26 [2024-11-16 04:34:58,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:34:58,718 INFO L471 AbstractCegarLoop]: Abstraction has 14969 states and 23296 transitions. [2024-11-16 04:34:58,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:34:58,719 INFO L276 IsEmpty]: Start isEmpty. Operand 14969 states and 23296 transitions. [2024-11-16 04:34:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 04:34:58,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:34:58,721 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:34:58,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:34:58,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:34:58,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:34:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash -270945453, now seen corresponding path program 1 times [2024-11-16 04:34:58,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:34:58,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181851174] [2024-11-16 04:34:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:34:58,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:34:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:34:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:34:58,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:34:58,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181851174] [2024-11-16 04:34:58,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181851174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:34:58,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:34:58,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:34:58,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034791484] [2024-11-16 04:34:58,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:34:58,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:34:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:34:58,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:34:58,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:34:58,808 INFO L87 Difference]: Start difference. First operand 14969 states and 23296 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:02,780 INFO L93 Difference]: Finished difference Result 37779 states and 58576 transitions. [2024-11-16 04:35:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:02,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-16 04:35:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:02,826 INFO L225 Difference]: With dead ends: 37779 [2024-11-16 04:35:02,826 INFO L226 Difference]: Without dead ends: 22531 [2024-11-16 04:35:02,833 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 [2024-11-16 04:35:02,834 INFO L432 NwaCegarLoop]: 10506 mSDtfsCounter, 10113 mSDsluCounter, 9631 mSDsCounter, 0 mSdLazyCounter, 4519 mSolverCounterSat, 1455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10113 SdHoareTripleChecker+Valid, 20137 SdHoareTripleChecker+Invalid, 5974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1455 IncrementalHoareTripleChecker+Valid, 4519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:02,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10113 Valid, 20137 Invalid, 5974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1455 Valid, 4519 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 04:35:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22531 states. [2024-11-16 04:35:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22531 to 21289. [2024-11-16 04:35:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21289 states, 21288 states have (on average 1.5516723036452462) internal successors, (33032), 21288 states have internal predecessors, (33032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21289 states to 21289 states and 33032 transitions. [2024-11-16 04:35:03,073 INFO L78 Accepts]: Start accepts. Automaton has 21289 states and 33032 transitions. Word has length 28 [2024-11-16 04:35:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:03,073 INFO L471 AbstractCegarLoop]: Abstraction has 21289 states and 33032 transitions. [2024-11-16 04:35:03,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 21289 states and 33032 transitions. [2024-11-16 04:35:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:35:03,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:03,074 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:35:03,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:35:03,076 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:03,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1686247975, now seen corresponding path program 1 times [2024-11-16 04:35:03,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:03,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490314300] [2024-11-16 04:35:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:03,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:03,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490314300] [2024-11-16 04:35:03,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490314300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:03,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:03,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:03,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879253525] [2024-11-16 04:35:03,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:03,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:03,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:03,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:03,166 INFO L87 Difference]: Start difference. First operand 21289 states and 33032 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:07,950 INFO L93 Difference]: Finished difference Result 63831 states and 99030 transitions. [2024-11-16 04:35:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:07,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-16 04:35:07,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:08,023 INFO L225 Difference]: With dead ends: 63831 [2024-11-16 04:35:08,023 INFO L226 Difference]: Without dead ends: 42545 [2024-11-16 04:35:08,039 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 [2024-11-16 04:35:08,040 INFO L432 NwaCegarLoop]: 21593 mSDtfsCounter, 10227 mSDsluCounter, 9575 mSDsCounter, 0 mSdLazyCounter, 6371 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10227 SdHoareTripleChecker+Valid, 31168 SdHoareTripleChecker+Invalid, 7519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 6371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:08,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10227 Valid, 31168 Invalid, 7519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 6371 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-16 04:35:08,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42545 states. [2024-11-16 04:35:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42545 to 40459. [2024-11-16 04:35:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40459 states, 40458 states have (on average 1.5744475752632359) internal successors, (63699), 40458 states have internal predecessors, (63699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40459 states to 40459 states and 63699 transitions. [2024-11-16 04:35:08,541 INFO L78 Accepts]: Start accepts. Automaton has 40459 states and 63699 transitions. Word has length 33 [2024-11-16 04:35:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:08,542 INFO L471 AbstractCegarLoop]: Abstraction has 40459 states and 63699 transitions. [2024-11-16 04:35:08,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 40459 states and 63699 transitions. [2024-11-16 04:35:08,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 04:35:08,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:08,543 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:08,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:35:08,546 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:08,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:08,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1568466114, now seen corresponding path program 1 times [2024-11-16 04:35:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:08,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128654909] [2024-11-16 04:35:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128654909] [2024-11-16 04:35:08,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128654909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:08,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:08,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:08,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121771293] [2024-11-16 04:35:08,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:08,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:08,651 INFO L87 Difference]: Start difference. First operand 40459 states and 63699 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:10,024 INFO L93 Difference]: Finished difference Result 80954 states and 127457 transitions. [2024-11-16 04:35:10,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:10,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 40 [2024-11-16 04:35:10,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:10,080 INFO L225 Difference]: With dead ends: 80954 [2024-11-16 04:35:10,081 INFO L226 Difference]: Without dead ends: 40498 [2024-11-16 04:35:10,110 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 [2024-11-16 04:35:10,110 INFO L432 NwaCegarLoop]: 12346 mSDtfsCounter, 306 mSDsluCounter, 10701 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 23047 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:10,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 23047 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:35:10,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40498 states. [2024-11-16 04:35:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40498 to 40495. [2024-11-16 04:35:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40495 states, 40494 states have (on average 1.5739368795377093) internal successors, (63735), 40494 states have internal predecessors, (63735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40495 states to 40495 states and 63735 transitions. [2024-11-16 04:35:10,573 INFO L78 Accepts]: Start accepts. Automaton has 40495 states and 63735 transitions. Word has length 40 [2024-11-16 04:35:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:10,573 INFO L471 AbstractCegarLoop]: Abstraction has 40495 states and 63735 transitions. [2024-11-16 04:35:10,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 40495 states and 63735 transitions. [2024-11-16 04:35:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 04:35:10,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:10,576 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:35:10,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:35:10,577 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:10,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -199969153, now seen corresponding path program 1 times [2024-11-16 04:35:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:10,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809903584] [2024-11-16 04:35:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:10,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:10,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809903584] [2024-11-16 04:35:10,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809903584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:10,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:10,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:10,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118497477] [2024-11-16 04:35:10,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:10,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:10,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:10,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:10,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:10,647 INFO L87 Difference]: Start difference. First operand 40495 states and 63735 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:13,517 INFO L93 Difference]: Finished difference Result 109077 states and 171887 transitions. [2024-11-16 04:35:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-16 04:35:13,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:13,618 INFO L225 Difference]: With dead ends: 109077 [2024-11-16 04:35:13,618 INFO L226 Difference]: Without dead ends: 68535 [2024-11-16 04:35:13,654 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 [2024-11-16 04:35:13,655 INFO L432 NwaCegarLoop]: 10926 mSDtfsCounter, 10916 mSDsluCounter, 10883 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 1313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10916 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:13,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10916 Valid, 21809 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1313 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:35:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68535 states. [2024-11-16 04:35:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68535 to 66803. [2024-11-16 04:35:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66803 states, 66802 states have (on average 1.5848477590491303) internal successors, (105871), 66802 states have internal predecessors, (105871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:14,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66803 states to 66803 states and 105871 transitions. [2024-11-16 04:35:14,679 INFO L78 Accepts]: Start accepts. Automaton has 66803 states and 105871 transitions. Word has length 42 [2024-11-16 04:35:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:14,680 INFO L471 AbstractCegarLoop]: Abstraction has 66803 states and 105871 transitions. [2024-11-16 04:35:14,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 66803 states and 105871 transitions. [2024-11-16 04:35:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 04:35:14,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:14,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:14,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:35:14,681 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:14,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:14,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1146174726, now seen corresponding path program 1 times [2024-11-16 04:35:14,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:14,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519563954] [2024-11-16 04:35:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:14,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519563954] [2024-11-16 04:35:14,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519563954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:14,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:14,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476518036] [2024-11-16 04:35:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:14,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:14,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:14,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:14,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:14,753 INFO L87 Difference]: Start difference. First operand 66803 states and 105871 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:16,659 INFO L93 Difference]: Finished difference Result 129374 states and 205027 transitions. [2024-11-16 04:35:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:16,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 04:35:16,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:16,756 INFO L225 Difference]: With dead ends: 129374 [2024-11-16 04:35:16,756 INFO L226 Difference]: Without dead ends: 62574 [2024-11-16 04:35:16,787 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 [2024-11-16 04:35:16,788 INFO L432 NwaCegarLoop]: 12051 mSDtfsCounter, 10324 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10324 SdHoareTripleChecker+Valid, 12604 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:16,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10324 Valid, 12604 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:35:16,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62574 states. [2024-11-16 04:35:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62574 to 62571. [2024-11-16 04:35:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62571 states, 62570 states have (on average 1.5840978104522934) internal successors, (99117), 62570 states have internal predecessors, (99117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62571 states to 62571 states and 99117 transitions. [2024-11-16 04:35:17,619 INFO L78 Accepts]: Start accepts. Automaton has 62571 states and 99117 transitions. Word has length 50 [2024-11-16 04:35:17,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:17,619 INFO L471 AbstractCegarLoop]: Abstraction has 62571 states and 99117 transitions. [2024-11-16 04:35:17,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 62571 states and 99117 transitions. [2024-11-16 04:35:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 04:35:17,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:17,621 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:17,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:35:17,621 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:17,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash -308550687, now seen corresponding path program 1 times [2024-11-16 04:35:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740638304] [2024-11-16 04:35:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:18,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740638304] [2024-11-16 04:35:18,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740638304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:18,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:18,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:35:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673311233] [2024-11-16 04:35:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:18,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:35:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:35:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:18,045 INFO L87 Difference]: Start difference. First operand 62571 states and 99117 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:22,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:22,245 INFO L93 Difference]: Finished difference Result 119641 states and 189374 transitions. [2024-11-16 04:35:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:35:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 04:35:22,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:22,349 INFO L225 Difference]: With dead ends: 119641 [2024-11-16 04:35:22,349 INFO L226 Difference]: Without dead ends: 62809 [2024-11-16 04:35:22,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:22,383 INFO L432 NwaCegarLoop]: 9465 mSDtfsCounter, 29498 mSDsluCounter, 9234 mSDsCounter, 0 mSdLazyCounter, 4141 mSolverCounterSat, 3486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29498 SdHoareTripleChecker+Valid, 18699 SdHoareTripleChecker+Invalid, 7627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3486 IncrementalHoareTripleChecker+Valid, 4141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:22,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29498 Valid, 18699 Invalid, 7627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3486 Valid, 4141 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 04:35:22,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62809 states. [2024-11-16 04:35:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62809 to 60409. [2024-11-16 04:35:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60409 states, 60408 states have (on average 1.5626076016421666) internal successors, (94394), 60408 states have internal predecessors, (94394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60409 states to 60409 states and 94394 transitions. [2024-11-16 04:35:23,186 INFO L78 Accepts]: Start accepts. Automaton has 60409 states and 94394 transitions. Word has length 56 [2024-11-16 04:35:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:23,187 INFO L471 AbstractCegarLoop]: Abstraction has 60409 states and 94394 transitions. [2024-11-16 04:35:23,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 60409 states and 94394 transitions. [2024-11-16 04:35:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 04:35:23,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:23,190 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:23,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:35:23,190 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:23,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1895762981, now seen corresponding path program 1 times [2024-11-16 04:35:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216724511] [2024-11-16 04:35:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:23,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:23,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216724511] [2024-11-16 04:35:23,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216724511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:23,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:23,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511814127] [2024-11-16 04:35:23,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:23,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:23,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:23,317 INFO L87 Difference]: Start difference. First operand 60409 states and 94394 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:24,779 INFO L93 Difference]: Finished difference Result 120468 states and 188229 transitions. [2024-11-16 04:35:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:24,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-16 04:35:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:25,068 INFO L225 Difference]: With dead ends: 120468 [2024-11-16 04:35:25,068 INFO L226 Difference]: Without dead ends: 60482 [2024-11-16 04:35:25,091 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 [2024-11-16 04:35:25,092 INFO L432 NwaCegarLoop]: 11640 mSDtfsCounter, 278 mSDsluCounter, 10276 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 21916 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:25,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 21916 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:35:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60482 states. [2024-11-16 04:35:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60482 to 60479. [2024-11-16 04:35:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60479 states, 60478 states have (on average 1.5619564139025761) internal successors, (94464), 60478 states have internal predecessors, (94464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:25,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60479 states to 60479 states and 94464 transitions. [2024-11-16 04:35:25,903 INFO L78 Accepts]: Start accepts. Automaton has 60479 states and 94464 transitions. Word has length 57 [2024-11-16 04:35:25,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:25,904 INFO L471 AbstractCegarLoop]: Abstraction has 60479 states and 94464 transitions. [2024-11-16 04:35:25,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 60479 states and 94464 transitions. [2024-11-16 04:35:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 04:35:25,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:25,905 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:35:25,906 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:25,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1682081060, now seen corresponding path program 1 times [2024-11-16 04:35:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:25,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676317256] [2024-11-16 04:35:25,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:25,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:26,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676317256] [2024-11-16 04:35:26,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676317256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:26,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390344624] [2024-11-16 04:35:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:26,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:26,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:26,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:26,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:26,017 INFO L87 Difference]: Start difference. First operand 60479 states and 94464 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) [2024-11-16 04:35:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:28,919 INFO L93 Difference]: Finished difference Result 110089 states and 171392 transitions. [2024-11-16 04:35:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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 62 [2024-11-16 04:35:28,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:29,005 INFO L225 Difference]: With dead ends: 110089 [2024-11-16 04:35:29,005 INFO L226 Difference]: Without dead ends: 61446 [2024-11-16 04:35:29,044 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 [2024-11-16 04:35:29,044 INFO L432 NwaCegarLoop]: 10163 mSDtfsCounter, 9659 mSDsluCounter, 9404 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9659 SdHoareTripleChecker+Valid, 19567 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:29,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9659 Valid, 19567 Invalid, 4001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1080 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:35:29,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61446 states. [2024-11-16 04:35:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61446 to 60223. [2024-11-16 04:35:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60223 states, 60222 states have (on average 1.5515924413005213) internal successors, (93440), 60222 states have internal predecessors, (93440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60223 states to 60223 states and 93440 transitions. [2024-11-16 04:35:30,086 INFO L78 Accepts]: Start accepts. Automaton has 60223 states and 93440 transitions. Word has length 62 [2024-11-16 04:35:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:30,086 INFO L471 AbstractCegarLoop]: Abstraction has 60223 states and 93440 transitions. [2024-11-16 04:35:30,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) [2024-11-16 04:35:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 60223 states and 93440 transitions. [2024-11-16 04:35:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 04:35:30,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:30,087 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:35:30,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:35:30,088 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:30,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:30,088 INFO L85 PathProgramCache]: Analyzing trace with hash 897056091, now seen corresponding path program 1 times [2024-11-16 04:35:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181534425] [2024-11-16 04:35:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:30,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:30,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181534425] [2024-11-16 04:35:30,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181534425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:30,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:30,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887755361] [2024-11-16 04:35:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:30,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:30,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:30,183 INFO L87 Difference]: Start difference. First operand 60223 states and 93440 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2024-11-16 04:35:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:33,498 INFO L93 Difference]: Finished difference Result 122276 states and 188587 transitions. [2024-11-16 04:35:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 [2024-11-16 04:35:33,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:33,591 INFO L225 Difference]: With dead ends: 122276 [2024-11-16 04:35:33,592 INFO L226 Difference]: Without dead ends: 62436 [2024-11-16 04:35:33,640 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 [2024-11-16 04:35:33,641 INFO L432 NwaCegarLoop]: 10089 mSDtfsCounter, 9796 mSDsluCounter, 9168 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9796 SdHoareTripleChecker+Valid, 19257 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:33,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9796 Valid, 19257 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:35:33,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62436 states. [2024-11-16 04:35:34,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62436 to 59917. [2024-11-16 04:35:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59917 states, 59916 states have (on average 1.5480506041791842) internal successors, (92753), 59916 states have internal predecessors, (92753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59917 states to 59917 states and 92753 transitions. [2024-11-16 04:35:34,469 INFO L78 Accepts]: Start accepts. Automaton has 59917 states and 92753 transitions. Word has length 67 [2024-11-16 04:35:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:34,469 INFO L471 AbstractCegarLoop]: Abstraction has 59917 states and 92753 transitions. [2024-11-16 04:35:34,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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) [2024-11-16 04:35:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 59917 states and 92753 transitions. [2024-11-16 04:35:34,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 04:35:34,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:34,471 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:35:34,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:35:34,471 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:34,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1608638177, now seen corresponding path program 1 times [2024-11-16 04:35:34,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:34,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46505613] [2024-11-16 04:35:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:34,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:34,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:34,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46505613] [2024-11-16 04:35:34,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46505613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:34,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:34,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:35:34,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688025230] [2024-11-16 04:35:34,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:34,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:35:34,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:34,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:35:34,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:34,672 INFO L87 Difference]: Start difference. First operand 59917 states and 92753 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:39,474 INFO L93 Difference]: Finished difference Result 86193 states and 132299 transitions. [2024-11-16 04:35:39,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:39,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-16 04:35:39,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:39,551 INFO L225 Difference]: With dead ends: 86193 [2024-11-16 04:35:39,551 INFO L226 Difference]: Without dead ends: 61176 [2024-11-16 04:35:39,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:39,576 INFO L432 NwaCegarLoop]: 19399 mSDtfsCounter, 18351 mSDsluCounter, 8530 mSDsCounter, 0 mSdLazyCounter, 5149 mSolverCounterSat, 1469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18351 SdHoareTripleChecker+Valid, 27929 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 5149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:39,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18351 Valid, 27929 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1469 Valid, 5149 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-16 04:35:39,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61176 states. [2024-11-16 04:35:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61176 to 59901. [2024-11-16 04:35:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59901 states, 59900 states have (on average 1.5467946577629383) internal successors, (92653), 59900 states have internal predecessors, (92653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59901 states to 59901 states and 92653 transitions. [2024-11-16 04:35:40,350 INFO L78 Accepts]: Start accepts. Automaton has 59901 states and 92653 transitions. Word has length 77 [2024-11-16 04:35:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:40,350 INFO L471 AbstractCegarLoop]: Abstraction has 59901 states and 92653 transitions. [2024-11-16 04:35:40,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 59901 states and 92653 transitions. [2024-11-16 04:35:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 04:35:40,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:40,352 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:40,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:35:40,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:40,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1162002739, now seen corresponding path program 1 times [2024-11-16 04:35:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242072115] [2024-11-16 04:35:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:40,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:40,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:40,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242072115] [2024-11-16 04:35:40,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242072115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:40,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:40,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:40,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570810083] [2024-11-16 04:35:40,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:40,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:40,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:40,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:40,443 INFO L87 Difference]: Start difference. First operand 59901 states and 92653 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:42,142 INFO L93 Difference]: Finished difference Result 117163 states and 181234 transitions. [2024-11-16 04:35:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:42,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-16 04:35:42,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:42,210 INFO L225 Difference]: With dead ends: 117163 [2024-11-16 04:35:42,210 INFO L226 Difference]: Without dead ends: 57663 [2024-11-16 04:35:42,229 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 [2024-11-16 04:35:42,230 INFO L432 NwaCegarLoop]: 11159 mSDtfsCounter, 9553 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9553 SdHoareTripleChecker+Valid, 11926 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:42,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9553 Valid, 11926 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:35:42,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57663 states. [2024-11-16 04:35:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57663 to 57660. [2024-11-16 04:35:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57660 states, 57659 states have (on average 1.5458644790925962) internal successors, (89133), 57659 states have internal predecessors, (89133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57660 states to 57660 states and 89133 transitions. [2024-11-16 04:35:42,781 INFO L78 Accepts]: Start accepts. Automaton has 57660 states and 89133 transitions. Word has length 85 [2024-11-16 04:35:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:42,781 INFO L471 AbstractCegarLoop]: Abstraction has 57660 states and 89133 transitions. [2024-11-16 04:35:42,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:42,782 INFO L276 IsEmpty]: Start isEmpty. Operand 57660 states and 89133 transitions. [2024-11-16 04:35:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 04:35:42,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:42,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:42,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:35:42,783 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:42,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:42,783 INFO L85 PathProgramCache]: Analyzing trace with hash 478576234, now seen corresponding path program 1 times [2024-11-16 04:35:42,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:42,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759838417] [2024-11-16 04:35:42,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:42,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 04:35:43,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:43,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759838417] [2024-11-16 04:35:43,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759838417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:43,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:43,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:35:43,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148841953] [2024-11-16 04:35:43,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:43,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:35:43,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:43,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:35:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:35:43,213 INFO L87 Difference]: Start difference. First operand 57660 states and 89133 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:44,314 INFO L93 Difference]: Finished difference Result 115012 states and 177794 transitions. [2024-11-16 04:35:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:35:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 88 [2024-11-16 04:35:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:44,393 INFO L225 Difference]: With dead ends: 115012 [2024-11-16 04:35:44,393 INFO L226 Difference]: Without dead ends: 57753 [2024-11-16 04:35:44,438 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 [2024-11-16 04:35:44,438 INFO L432 NwaCegarLoop]: 11231 mSDtfsCounter, 277 mSDsluCounter, 9970 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:44,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 21201 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:35:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57753 states. [2024-11-16 04:35:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57753 to 57750. [2024-11-16 04:35:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57750 states, 57749 states have (on average 1.5450137664721466) internal successors, (89223), 57749 states have internal predecessors, (89223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57750 states to 57750 states and 89223 transitions. [2024-11-16 04:35:45,224 INFO L78 Accepts]: Start accepts. Automaton has 57750 states and 89223 transitions. Word has length 88 [2024-11-16 04:35:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:45,225 INFO L471 AbstractCegarLoop]: Abstraction has 57750 states and 89223 transitions. [2024-11-16 04:35:45,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 57750 states and 89223 transitions. [2024-11-16 04:35:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 04:35:45,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:45,226 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:45,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:35:45,227 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:45,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:45,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1981300848, now seen corresponding path program 1 times [2024-11-16 04:35:45,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904053753] [2024-11-16 04:35:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904053753] [2024-11-16 04:35:45,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904053753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:45,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:45,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:35:45,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426630886] [2024-11-16 04:35:45,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:45,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:35:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:35:45,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:45,416 INFO L87 Difference]: Start difference. First operand 57750 states and 89223 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:35:50,402 INFO L93 Difference]: Finished difference Result 82723 states and 126840 transitions. [2024-11-16 04:35:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:35:50,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-16 04:35:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:35:50,444 INFO L225 Difference]: With dead ends: 82723 [2024-11-16 04:35:50,444 INFO L226 Difference]: Without dead ends: 36273 [2024-11-16 04:35:50,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:50,464 INFO L432 NwaCegarLoop]: 8739 mSDtfsCounter, 26523 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 2546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26523 SdHoareTripleChecker+Valid, 17109 SdHoareTripleChecker+Invalid, 7312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2546 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:35:50,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26523 Valid, 17109 Invalid, 7312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2546 Valid, 4766 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-16 04:35:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36273 states. [2024-11-16 04:35:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36273 to 35118. [2024-11-16 04:35:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35118 states, 35117 states have (on average 1.5206879858757867) internal successors, (53402), 35117 states have internal predecessors, (53402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35118 states to 35118 states and 53402 transitions. [2024-11-16 04:35:50,813 INFO L78 Accepts]: Start accepts. Automaton has 35118 states and 53402 transitions. Word has length 92 [2024-11-16 04:35:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:35:50,813 INFO L471 AbstractCegarLoop]: Abstraction has 35118 states and 53402 transitions. [2024-11-16 04:35:50,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 35118 states and 53402 transitions. [2024-11-16 04:35:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 04:35:50,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:50,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 04:35:50,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:35:50,815 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:50,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash -370719644, now seen corresponding path program 1 times [2024-11-16 04:35:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:50,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682837090] [2024-11-16 04:35:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:35:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:35:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:35:51,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:35:51,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682837090] [2024-11-16 04:35:51,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682837090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:35:51,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:35:51,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:35:51,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117849380] [2024-11-16 04:35:51,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:35:51,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:35:51,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:35:51,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:35:51,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:35:51,013 INFO L87 Difference]: Start difference. First operand 35118 states and 53402 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)