./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/eca-rers2012/Problem15_label53.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 d47a87af871ac94bbcea7d3dd980f2dd1a9893e716b88333a075adbedab63554 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:31:58,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:31:58,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:31:58,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:31:58,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:31:58,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:31:58,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:31:58,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:31:58,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:31:58,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:31:58,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:31:58,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:31:58,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:31:58,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:31:58,249 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:31:58,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:31:58,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:31:58,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:31:58,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:31:58,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:31:58,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:31:58,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:31:58,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:31:58,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:31:58,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:31:58,252 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:31:58,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:31:58,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:31:58,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:31:58,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:31:58,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:31:58,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:31:58,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:31:58,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:31:58,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:31:58,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:31:58,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:31:58,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:31:58,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:31:58,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:31:58,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:31:58,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:31:58,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d47a87af871ac94bbcea7d3dd980f2dd1a9893e716b88333a075adbedab63554 [2024-11-08 11:31:58,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:31:58,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:31:58,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:31:58,482 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:31:58,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:31:58,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label53.c [2024-11-08 11:31:59,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:32:00,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:32:00,156 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label53.c [2024-11-08 11:32:00,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9824e211/c5d9990d1d97449aba965d05721afdc1/FLAG6f09b6ed9 [2024-11-08 11:32:00,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9824e211/c5d9990d1d97449aba965d05721afdc1 [2024-11-08 11:32:00,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:32:00,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:32:00,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:32:00,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:32:00,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:32:00,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:32:00" (1/1) ... [2024-11-08 11:32:00,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b83c7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:00, skipping insertion in model container [2024-11-08 11:32:00,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:32:00" (1/1) ... [2024-11-08 11:32:00,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:32:00,684 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/eca-rers2012/Problem15_label53.c[5826,5839] [2024-11-08 11:32:00,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:32:00,962 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:32:00,984 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/eca-rers2012/Problem15_label53.c[5826,5839] [2024-11-08 11:32:01,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:32:01,130 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:32:01,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01 WrapperNode [2024-11-08 11:32:01,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:32:01,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:32:01,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:32:01,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:32:01,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,349 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-08 11:32:01,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:32:01,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:32:01,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:32:01,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:32:01,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,437 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]. [2024-11-08 11:32:01,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:32:01,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:32:01,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:32:01,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:32:01,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (1/1) ... [2024-11-08 11:32:01,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:32:01,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:01,670 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) [2024-11-08 11:32:01,672 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 [2024-11-08 11:32:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:32:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:32:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:32:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:32:01,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:32:01,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:32:03,577 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-08 11:32:03,578 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:32:03,593 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:32:03,593 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:32:03,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:32:03 BoogieIcfgContainer [2024-11-08 11:32:03,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:32:03,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:32:03,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:32:03,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:32:03,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:32:00" (1/3) ... [2024-11-08 11:32:03,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4036c6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:32:03, skipping insertion in model container [2024-11-08 11:32:03,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:32:01" (2/3) ... [2024-11-08 11:32:03,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4036c6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:32:03, skipping insertion in model container [2024-11-08 11:32:03,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:32:03" (3/3) ... [2024-11-08 11:32:03,599 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label53.c [2024-11-08 11:32:03,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:32:03,611 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:32:03,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:32:03,663 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;@66224aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:32:03,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:32:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-08 11:32:03,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:03,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:03,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:03,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:03,679 INFO L85 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2024-11-08 11:32:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112226317] [2024-11-08 11:32:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:03,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:03,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:03,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112226317] [2024-11-08 11:32:03,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112226317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:03,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:03,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:03,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369048261] [2024-11-08 11:32:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:03,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:03,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:03,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:03,951 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:05,676 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions. [2024-11-08 11:32:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:05,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-08 11:32:05,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:05,689 INFO L225 Difference]: With dead ends: 1154 [2024-11-08 11:32:05,689 INFO L226 Difference]: Without dead ends: 665 [2024-11-08 11:32:05,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:05,695 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 274 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:05,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 383 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:32:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-08 11:32:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-08 11:32:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2024-11-08 11:32:05,753 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 47 [2024-11-08 11:32:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:05,754 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2024-11-08 11:32:05,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2024-11-08 11:32:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 11:32:05,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:05,757 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:05,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:32:05,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:05,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1438862921, now seen corresponding path program 1 times [2024-11-08 11:32:05,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:05,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225531232] [2024-11-08 11:32:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225531232] [2024-11-08 11:32:06,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225531232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:06,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:06,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:06,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125635691] [2024-11-08 11:32:06,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:06,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:06,021 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:07,105 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2024-11-08 11:32:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:07,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-11-08 11:32:07,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:07,109 INFO L225 Difference]: With dead ends: 1624 [2024-11-08 11:32:07,109 INFO L226 Difference]: Without dead ends: 963 [2024-11-08 11:32:07,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:07,112 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:07,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:32:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-08 11:32:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-08 11:32:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2024-11-08 11:32:07,135 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 112 [2024-11-08 11:32:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:07,135 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2024-11-08 11:32:07,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:07,135 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2024-11-08 11:32:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 11:32:07,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:07,137 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:07,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:32:07,137 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:07,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2089662630, now seen corresponding path program 1 times [2024-11-08 11:32:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291419982] [2024-11-08 11:32:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:07,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:07,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291419982] [2024-11-08 11:32:07,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291419982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:07,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:07,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:07,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358186757] [2024-11-08 11:32:07,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:07,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:07,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:07,264 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:08,625 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions. [2024-11-08 11:32:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-08 11:32:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:08,630 INFO L225 Difference]: With dead ends: 2229 [2024-11-08 11:32:08,630 INFO L226 Difference]: Without dead ends: 1567 [2024-11-08 11:32:08,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:08,633 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:08,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 318 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:32:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-08 11:32:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266. [2024-11-08 11:32:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3043478260869565) internal successors, (1650), 1265 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1650 transitions. [2024-11-08 11:32:08,658 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1650 transitions. Word has length 117 [2024-11-08 11:32:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:08,659 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1650 transitions. [2024-11-08 11:32:08,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1650 transitions. [2024-11-08 11:32:08,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-08 11:32:08,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:08,663 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:08,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:32:08,664 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:08,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 864549314, now seen corresponding path program 1 times [2024-11-08 11:32:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:08,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367473522] [2024-11-08 11:32:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367473522] [2024-11-08 11:32:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367473522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:08,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:08,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078700776] [2024-11-08 11:32:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:08,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:32:08,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:32:08,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:32:08,868 INFO L87 Difference]: Start difference. First operand 1266 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:11,044 INFO L93 Difference]: Finished difference Result 4668 states and 6169 transitions. [2024-11-08 11:32:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:32:11,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-11-08 11:32:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:11,054 INFO L225 Difference]: With dead ends: 4668 [2024-11-08 11:32:11,054 INFO L226 Difference]: Without dead ends: 3404 [2024-11-08 11:32:11,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:32:11,057 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 484 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:11,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 377 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:32:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-08 11:32:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3381. [2024-11-08 11:32:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2363905325443787) internal successors, (4179), 3380 states have internal predecessors, (4179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:11,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4179 transitions. [2024-11-08 11:32:11,099 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4179 transitions. Word has length 213 [2024-11-08 11:32:11,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:11,101 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4179 transitions. [2024-11-08 11:32:11,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4179 transitions. [2024-11-08 11:32:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-08 11:32:11,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:11,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:11,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:32:11,106 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:11,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash 154363468, now seen corresponding path program 1 times [2024-11-08 11:32:11,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:11,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879468033] [2024-11-08 11:32:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:11,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 11:32:11,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:11,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879468033] [2024-11-08 11:32:11,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879468033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:11,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:11,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:11,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130435345] [2024-11-08 11:32:11,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:11,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:11,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:11,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:11,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:11,285 INFO L87 Difference]: Start difference. First operand 3381 states and 4179 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:12,607 INFO L93 Difference]: Finished difference Result 8563 states and 10751 transitions. [2024-11-08 11:32:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:12,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 217 [2024-11-08 11:32:12,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:12,621 INFO L225 Difference]: With dead ends: 8563 [2024-11-08 11:32:12,621 INFO L226 Difference]: Without dead ends: 5483 [2024-11-08 11:32:12,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:12,626 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:12,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:32:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2024-11-08 11:32:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2024-11-08 11:32:12,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1683403322987036) internal successors, (6399), 5477 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6399 transitions. [2024-11-08 11:32:12,697 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6399 transitions. Word has length 217 [2024-11-08 11:32:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:12,698 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6399 transitions. [2024-11-08 11:32:12,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6399 transitions. [2024-11-08 11:32:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-08 11:32:12,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:12,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:12,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:32:12,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1951907684, now seen corresponding path program 1 times [2024-11-08 11:32:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:12,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79171899] [2024-11-08 11:32:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 11:32:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:13,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79171899] [2024-11-08 11:32:13,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79171899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:13,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:13,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:32:13,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668962106] [2024-11-08 11:32:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:13,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:13,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:13,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:13,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:13,139 INFO L87 Difference]: Start difference. First operand 5478 states and 6399 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:14,193 INFO L93 Difference]: Finished difference Result 10655 states and 12485 transitions. [2024-11-08 11:32:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 319 [2024-11-08 11:32:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:14,206 INFO L225 Difference]: With dead ends: 10655 [2024-11-08 11:32:14,206 INFO L226 Difference]: Without dead ends: 5478 [2024-11-08 11:32:14,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:14,211 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:14,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:32:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2024-11-08 11:32:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2024-11-08 11:32:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1672448420668249) internal successors, (6393), 5477 states have internal predecessors, (6393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6393 transitions. [2024-11-08 11:32:14,293 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6393 transitions. Word has length 319 [2024-11-08 11:32:14,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:14,294 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6393 transitions. [2024-11-08 11:32:14,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6393 transitions. [2024-11-08 11:32:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-08 11:32:14,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:14,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:14,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:32:14,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:14,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash 544636501, now seen corresponding path program 1 times [2024-11-08 11:32:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:14,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499904628] [2024-11-08 11:32:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:14,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 11:32:14,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:14,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499904628] [2024-11-08 11:32:14,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499904628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:14,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:14,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:14,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638875450] [2024-11-08 11:32:14,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:14,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:14,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:14,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:14,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:14,474 INFO L87 Difference]: Start difference. First operand 5478 states and 6393 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:15,722 INFO L93 Difference]: Finished difference Result 11851 states and 14145 transitions. [2024-11-08 11:32:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:15,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 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 334 [2024-11-08 11:32:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:15,738 INFO L225 Difference]: With dead ends: 11851 [2024-11-08 11:32:15,738 INFO L226 Difference]: Without dead ends: 6674 [2024-11-08 11:32:15,743 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 [2024-11-08 11:32:15,743 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 268 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:15,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:32:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2024-11-08 11:32:15,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4577. [2024-11-08 11:32:15,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 4576 states have (on average 1.1840034965034965) internal successors, (5418), 4576 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 5418 transitions. [2024-11-08 11:32:15,902 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 5418 transitions. Word has length 334 [2024-11-08 11:32:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:15,939 INFO L471 AbstractCegarLoop]: Abstraction has 4577 states and 5418 transitions. [2024-11-08 11:32:15,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 5418 transitions. [2024-11-08 11:32:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-08 11:32:15,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:15,945 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:15,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:32:15,945 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:15,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1192256238, now seen corresponding path program 1 times [2024-11-08 11:32:15,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:15,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251866380] [2024-11-08 11:32:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 89 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251866380] [2024-11-08 11:32:16,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251866380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238935065] [2024-11-08 11:32:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:16,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:16,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:32:16,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:32:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:16,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:32:16,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:32:17,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:32:17,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238935065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:17,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:32:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 11:32:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898721847] [2024-11-08 11:32:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:17,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:17,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:17,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:17,080 INFO L87 Difference]: Start difference. First operand 4577 states and 5418 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:18,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:18,564 INFO L93 Difference]: Finished difference Result 10958 states and 13239 transitions. [2024-11-08 11:32:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:18,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 393 [2024-11-08 11:32:18,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:18,578 INFO L225 Difference]: With dead ends: 10958 [2024-11-08 11:32:18,579 INFO L226 Difference]: Without dead ends: 6682 [2024-11-08 11:32:18,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:32:18,583 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 249 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:18,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 345 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:32:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6682 states. [2024-11-08 11:32:18,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6682 to 6380. [2024-11-08 11:32:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6380 states, 6379 states have (on average 1.166483774886346) internal successors, (7441), 6379 states have internal predecessors, (7441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6380 states to 6380 states and 7441 transitions. [2024-11-08 11:32:18,645 INFO L78 Accepts]: Start accepts. Automaton has 6380 states and 7441 transitions. Word has length 393 [2024-11-08 11:32:18,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:18,646 INFO L471 AbstractCegarLoop]: Abstraction has 6380 states and 7441 transitions. [2024-11-08 11:32:18,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6380 states and 7441 transitions. [2024-11-08 11:32:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-08 11:32:18,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:18,650 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:18,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:32:18,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:18,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:18,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1701542393, now seen corresponding path program 1 times [2024-11-08 11:32:18,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:18,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627489559] [2024-11-08 11:32:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:18,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 291 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 11:32:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627489559] [2024-11-08 11:32:19,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627489559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122848727] [2024-11-08 11:32:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:19,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:19,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:19,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:32:19,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:32:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:19,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 11:32:19,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 291 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 11:32:20,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:32:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 291 proven. 39 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 11:32:20,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122848727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 11:32:20,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 11:32:20,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-08 11:32:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708615242] [2024-11-08 11:32:20,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 11:32:20,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 11:32:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:20,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 11:32:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:32:20,743 INFO L87 Difference]: Start difference. First operand 6380 states and 7441 transitions. Second operand has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:25,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:25,628 INFO L93 Difference]: Finished difference Result 18999 states and 21936 transitions. [2024-11-08 11:32:25,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 11:32:25,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 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 410 [2024-11-08 11:32:25,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:25,651 INFO L225 Difference]: With dead ends: 18999 [2024-11-08 11:32:25,652 INFO L226 Difference]: Without dead ends: 7278 [2024-11-08 11:32:25,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-08 11:32:25,659 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 2891 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 6135 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 6796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 6135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:25,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2891 Valid, 286 Invalid, 6796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 6135 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 11:32:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2024-11-08 11:32:25,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 6677. [2024-11-08 11:32:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 6676 states have (on average 1.1065008987417615) internal successors, (7387), 6676 states have internal predecessors, (7387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 7387 transitions. [2024-11-08 11:32:25,726 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 7387 transitions. Word has length 410 [2024-11-08 11:32:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:25,726 INFO L471 AbstractCegarLoop]: Abstraction has 6677 states and 7387 transitions. [2024-11-08 11:32:25,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.66666666666667) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 7387 transitions. [2024-11-08 11:32:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-08 11:32:25,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:25,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:25,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 11:32:25,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 11:32:25,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:25,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1911528904, now seen corresponding path program 1 times [2024-11-08 11:32:25,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:25,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498408887] [2024-11-08 11:32:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:25,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-08 11:32:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:26,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498408887] [2024-11-08 11:32:26,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498408887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:26,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:26,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884232924] [2024-11-08 11:32:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:26,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:26,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:26,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:26,255 INFO L87 Difference]: Start difference. First operand 6677 states and 7387 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:27,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:27,133 INFO L93 Difference]: Finished difference Result 15147 states and 16840 transitions. [2024-11-08 11:32:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 424 [2024-11-08 11:32:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:27,147 INFO L225 Difference]: With dead ends: 15147 [2024-11-08 11:32:27,147 INFO L226 Difference]: Without dead ends: 8472 [2024-11-08 11:32:27,152 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 [2024-11-08 11:32:27,153 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 278 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:27,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 549 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:32:27,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2024-11-08 11:32:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 8171. [2024-11-08 11:32:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8171 states, 8170 states have (on average 1.086046511627907) internal successors, (8873), 8170 states have internal predecessors, (8873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 8873 transitions. [2024-11-08 11:32:27,223 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 8873 transitions. Word has length 424 [2024-11-08 11:32:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:27,223 INFO L471 AbstractCegarLoop]: Abstraction has 8171 states and 8873 transitions. [2024-11-08 11:32:27,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 8873 transitions. [2024-11-08 11:32:27,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-08 11:32:27,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:27,226 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:27,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:32:27,227 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:27,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash 25263887, now seen corresponding path program 1 times [2024-11-08 11:32:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:27,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821262221] [2024-11-08 11:32:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-08 11:32:27,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:27,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821262221] [2024-11-08 11:32:27,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821262221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:27,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:27,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:27,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939621919] [2024-11-08 11:32:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:27,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:27,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:27,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:27,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:27,461 INFO L87 Difference]: Start difference. First operand 8171 states and 8873 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:28,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:28,197 INFO L93 Difference]: Finished difference Result 16338 states and 17786 transitions. [2024-11-08 11:32:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:28,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 548 [2024-11-08 11:32:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:28,209 INFO L225 Difference]: With dead ends: 16338 [2024-11-08 11:32:28,209 INFO L226 Difference]: Without dead ends: 8468 [2024-11-08 11:32:28,214 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 [2024-11-08 11:32:28,215 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 438 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:28,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 70 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2024-11-08 11:32:28,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 8169. [2024-11-08 11:32:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8169 states, 8168 states have (on average 1.085822722820764) internal successors, (8869), 8168 states have internal predecessors, (8869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8169 states to 8169 states and 8869 transitions. [2024-11-08 11:32:28,314 INFO L78 Accepts]: Start accepts. Automaton has 8169 states and 8869 transitions. Word has length 548 [2024-11-08 11:32:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:28,315 INFO L471 AbstractCegarLoop]: Abstraction has 8169 states and 8869 transitions. [2024-11-08 11:32:28,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:28,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8169 states and 8869 transitions. [2024-11-08 11:32:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-08 11:32:28,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:28,323 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:28,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:32:28,323 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:28,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:28,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1980825658, now seen corresponding path program 1 times [2024-11-08 11:32:28,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:28,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784416696] [2024-11-08 11:32:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:28,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-08 11:32:28,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:28,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784416696] [2024-11-08 11:32:28,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784416696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:28,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:28,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:28,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655907372] [2024-11-08 11:32:28,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:28,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:28,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:28,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:28,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:28,904 INFO L87 Difference]: Start difference. First operand 8169 states and 8869 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:29,864 INFO L93 Difference]: Finished difference Result 19054 states and 20734 transitions. [2024-11-08 11:32:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:29,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 574 [2024-11-08 11:32:29,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:29,877 INFO L225 Difference]: With dead ends: 19054 [2024-11-08 11:32:29,878 INFO L226 Difference]: Without dead ends: 10887 [2024-11-08 11:32:29,884 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 [2024-11-08 11:32:29,885 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 290 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:29,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 250 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:32:29,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2024-11-08 11:32:29,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 8471. [2024-11-08 11:32:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8471 states, 8470 states have (on average 1.084297520661157) internal successors, (9184), 8470 states have internal predecessors, (9184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:29,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8471 states to 8471 states and 9184 transitions. [2024-11-08 11:32:29,980 INFO L78 Accepts]: Start accepts. Automaton has 8471 states and 9184 transitions. Word has length 574 [2024-11-08 11:32:29,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:29,980 INFO L471 AbstractCegarLoop]: Abstraction has 8471 states and 9184 transitions. [2024-11-08 11:32:29,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states and 9184 transitions. [2024-11-08 11:32:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2024-11-08 11:32:29,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:29,984 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:29,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:32:29,984 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:29,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1516385307, now seen corresponding path program 1 times [2024-11-08 11:32:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:29,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187291848] [2024-11-08 11:32:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-08 11:32:30,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:30,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187291848] [2024-11-08 11:32:30,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187291848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:30,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:30,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:30,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107554631] [2024-11-08 11:32:30,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:30,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:30,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:30,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:30,305 INFO L87 Difference]: Start difference. First operand 8471 states and 9184 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:31,091 INFO L93 Difference]: Finished difference Result 19630 states and 21365 transitions. [2024-11-08 11:32:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:31,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 582 [2024-11-08 11:32:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:31,110 INFO L225 Difference]: With dead ends: 19630 [2024-11-08 11:32:31,110 INFO L226 Difference]: Without dead ends: 11161 [2024-11-08 11:32:31,117 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 [2024-11-08 11:32:31,118 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 269 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:31,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 538 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2024-11-08 11:32:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 10563. [2024-11-08 11:32:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10563 states, 10562 states have (on average 1.0707252414315471) internal successors, (11309), 10562 states have internal predecessors, (11309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10563 states to 10563 states and 11309 transitions. [2024-11-08 11:32:31,273 INFO L78 Accepts]: Start accepts. Automaton has 10563 states and 11309 transitions. Word has length 582 [2024-11-08 11:32:31,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:31,274 INFO L471 AbstractCegarLoop]: Abstraction has 10563 states and 11309 transitions. [2024-11-08 11:32:31,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:31,274 INFO L276 IsEmpty]: Start isEmpty. Operand 10563 states and 11309 transitions. [2024-11-08 11:32:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-08 11:32:31,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:31,278 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:31,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:32:31,278 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:31,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash -533162390, now seen corresponding path program 1 times [2024-11-08 11:32:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:31,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593383668] [2024-11-08 11:32:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:31,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-08 11:32:31,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:31,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593383668] [2024-11-08 11:32:31,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593383668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:31,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:31,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808168010] [2024-11-08 11:32:31,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:31,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:31,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:31,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:31,475 INFO L87 Difference]: Start difference. First operand 10563 states and 11309 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:32,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:32,331 INFO L93 Difference]: Finished difference Result 23814 states and 25604 transitions. [2024-11-08 11:32:32,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:32,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 585 [2024-11-08 11:32:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:32,344 INFO L225 Difference]: With dead ends: 23814 [2024-11-08 11:32:32,344 INFO L226 Difference]: Without dead ends: 13253 [2024-11-08 11:32:32,351 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 [2024-11-08 11:32:32,352 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 298 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:32,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 466 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:32:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13253 states. [2024-11-08 11:32:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13253 to 13253. [2024-11-08 11:32:32,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13253 states, 13252 states have (on average 1.0642167220042258) internal successors, (14103), 13252 states have internal predecessors, (14103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13253 states to 13253 states and 14103 transitions. [2024-11-08 11:32:32,452 INFO L78 Accepts]: Start accepts. Automaton has 13253 states and 14103 transitions. Word has length 585 [2024-11-08 11:32:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:32,452 INFO L471 AbstractCegarLoop]: Abstraction has 13253 states and 14103 transitions. [2024-11-08 11:32:32,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13253 states and 14103 transitions. [2024-11-08 11:32:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2024-11-08 11:32:32,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:32,461 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:32,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:32:32,461 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:32,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1380580974, now seen corresponding path program 1 times [2024-11-08 11:32:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:32,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363373573] [2024-11-08 11:32:32,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:32,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-08 11:32:32,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:32,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363373573] [2024-11-08 11:32:32,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363373573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:32,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:32,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:32,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097167186] [2024-11-08 11:32:32,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:32,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:32,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:32,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:32,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:32,867 INFO L87 Difference]: Start difference. First operand 13253 states and 14103 transitions. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:33,663 INFO L93 Difference]: Finished difference Result 28896 states and 30998 transitions. [2024-11-08 11:32:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 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 737 [2024-11-08 11:32:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:33,678 INFO L225 Difference]: With dead ends: 28896 [2024-11-08 11:32:33,679 INFO L226 Difference]: Without dead ends: 15944 [2024-11-08 11:32:33,687 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 [2024-11-08 11:32:33,688 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 160 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:33,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 516 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15944 states. [2024-11-08 11:32:33,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15944 to 15645. [2024-11-08 11:32:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15645 states, 15644 states have (on average 1.0582331884428535) internal successors, (16555), 15644 states have internal predecessors, (16555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:33,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15645 states to 15645 states and 16555 transitions. [2024-11-08 11:32:33,817 INFO L78 Accepts]: Start accepts. Automaton has 15645 states and 16555 transitions. Word has length 737 [2024-11-08 11:32:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:33,817 INFO L471 AbstractCegarLoop]: Abstraction has 15645 states and 16555 transitions. [2024-11-08 11:32:33,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 15645 states and 16555 transitions. [2024-11-08 11:32:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-11-08 11:32:33,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:33,836 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:33,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:32:33,837 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:33,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash -517569305, now seen corresponding path program 1 times [2024-11-08 11:32:33,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:33,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356215025] [2024-11-08 11:32:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:33,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 872 proven. 345 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-08 11:32:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356215025] [2024-11-08 11:32:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356215025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:32:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177899477] [2024-11-08 11:32:34,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:32:34,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:32:34,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:32:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:35,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:32:35,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:32:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-08 11:32:35,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:32:35,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177899477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:35,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:32:35,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-08 11:32:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691213247] [2024-11-08 11:32:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:35,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:32:35,264 INFO L87 Difference]: Start difference. First operand 15645 states and 16555 transitions. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:35,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:35,993 INFO L93 Difference]: Finished difference Result 30691 states and 32505 transitions. [2024-11-08 11:32:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:35,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 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 824 [2024-11-08 11:32:35,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:36,008 INFO L225 Difference]: With dead ends: 30691 [2024-11-08 11:32:36,009 INFO L226 Difference]: Without dead ends: 15347 [2024-11-08 11:32:36,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:32:36,019 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 219 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:36,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 397 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15347 states. [2024-11-08 11:32:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15347 to 15343. [2024-11-08 11:32:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15343 states, 15342 states have (on average 1.0517533567983315) internal successors, (16136), 15342 states have internal predecessors, (16136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15343 states to 15343 states and 16136 transitions. [2024-11-08 11:32:36,133 INFO L78 Accepts]: Start accepts. Automaton has 15343 states and 16136 transitions. Word has length 824 [2024-11-08 11:32:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:36,133 INFO L471 AbstractCegarLoop]: Abstraction has 15343 states and 16136 transitions. [2024-11-08 11:32:36,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 15343 states and 16136 transitions. [2024-11-08 11:32:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2024-11-08 11:32:36,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:36,143 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:36,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:32:36,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:32:36,344 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:36,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 799640595, now seen corresponding path program 1 times [2024-11-08 11:32:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:36,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179728159] [2024-11-08 11:32:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:36,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2024-11-08 11:32:36,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179728159] [2024-11-08 11:32:36,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179728159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:36,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:36,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511224563] [2024-11-08 11:32:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:36,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:36,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:36,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:36,775 INFO L87 Difference]: Start difference. First operand 15343 states and 16136 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:37,548 INFO L93 Difference]: Finished difference Result 30384 states and 31968 transitions. [2024-11-08 11:32:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 831 [2024-11-08 11:32:37,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:37,566 INFO L225 Difference]: With dead ends: 30384 [2024-11-08 11:32:37,566 INFO L226 Difference]: Without dead ends: 15043 [2024-11-08 11:32:37,576 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 [2024-11-08 11:32:37,577 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 279 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:37,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 501 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15043 states. [2024-11-08 11:32:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15043 to 14743. [2024-11-08 11:32:37,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14743 states, 14742 states have (on average 1.0356125356125356) internal successors, (15267), 14742 states have internal predecessors, (15267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14743 states to 14743 states and 15267 transitions. [2024-11-08 11:32:37,685 INFO L78 Accepts]: Start accepts. Automaton has 14743 states and 15267 transitions. Word has length 831 [2024-11-08 11:32:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:37,686 INFO L471 AbstractCegarLoop]: Abstraction has 14743 states and 15267 transitions. [2024-11-08 11:32:37,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 14743 states and 15267 transitions. [2024-11-08 11:32:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-11-08 11:32:37,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:37,696 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:37,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:32:37,697 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:37,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1131307691, now seen corresponding path program 1 times [2024-11-08 11:32:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143808675] [2024-11-08 11:32:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:37,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2024-11-08 11:32:38,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:38,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143808675] [2024-11-08 11:32:38,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143808675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:38,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:38,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:38,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386354987] [2024-11-08 11:32:38,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:38,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:38,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:38,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:38,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:38,234 INFO L87 Difference]: Start difference. First operand 14743 states and 15267 transitions. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:39,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:39,046 INFO L93 Difference]: Finished difference Result 34879 states and 36113 transitions. [2024-11-08 11:32:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:39,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 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 926 [2024-11-08 11:32:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:39,064 INFO L225 Difference]: With dead ends: 34879 [2024-11-08 11:32:39,064 INFO L226 Difference]: Without dead ends: 20437 [2024-11-08 11:32:39,075 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 [2024-11-08 11:32:39,076 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 270 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:39,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 140 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:32:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20437 states. [2024-11-08 11:32:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20437 to 16537. [2024-11-08 11:32:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16537 states, 16536 states have (on average 1.0357402031930334) internal successors, (17127), 16536 states have internal predecessors, (17127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16537 states to 16537 states and 17127 transitions. [2024-11-08 11:32:39,254 INFO L78 Accepts]: Start accepts. Automaton has 16537 states and 17127 transitions. Word has length 926 [2024-11-08 11:32:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:39,255 INFO L471 AbstractCegarLoop]: Abstraction has 16537 states and 17127 transitions. [2024-11-08 11:32:39,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 16537 states and 17127 transitions. [2024-11-08 11:32:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1603 [2024-11-08 11:32:39,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:32:39,275 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-08 11:32:39,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:32:39,276 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:32:39,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:32:39,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1985499588, now seen corresponding path program 1 times [2024-11-08 11:32:39,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:32:39,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127841588] [2024-11-08 11:32:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:32:39,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:32:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:32:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4626 backedges. 2915 proven. 0 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2024-11-08 11:32:40,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:32:40,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127841588] [2024-11-08 11:32:40,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127841588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:32:40,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:32:40,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:32:40,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289282595] [2024-11-08 11:32:40,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:32:40,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:32:40,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:32:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:32:40,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:32:40,082 INFO L87 Difference]: Start difference. First operand 16537 states and 17127 transitions. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:32:40,723 INFO L93 Difference]: Finished difference Result 27935 states and 28812 transitions. [2024-11-08 11:32:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:32:40,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 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 1602 [2024-11-08 11:32:40,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:32:40,725 INFO L225 Difference]: With dead ends: 27935 [2024-11-08 11:32:40,725 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 11:32:40,734 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 [2024-11-08 11:32:40,735 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 72 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:32:40,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 114 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:32:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 11:32:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 11:32:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 11:32:40,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1602 [2024-11-08 11:32:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:32:40,736 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 11:32:40,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:32:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 11:32:40,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 11:32:40,739 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 11:32:40,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:32:40,742 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:32:40,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 11:32:41,713 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 11:32:41,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:32:41 BoogieIcfgContainer [2024-11-08 11:32:41,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 11:32:41,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 11:32:41,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 11:32:41,739 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 11:32:41,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:32:03" (3/4) ... [2024-11-08 11:32:41,742 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 11:32:41,770 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 11:32:41,772 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 11:32:41,774 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 11:32:41,776 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 11:32:41,962 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 11:32:41,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 11:32:41,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 11:32:41,964 INFO L158 Benchmark]: Toolchain (without parser) took 41505.76ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 153.0MB in the beginning and 959.1MB in the end (delta: -806.1MB). Peak memory consumption was 435.4MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,964 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 11:32:41,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.12ms. Allocated memory is still 188.7MB. Free memory was 153.0MB in the beginning and 72.3MB in the end (delta: 80.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 218.48ms. Allocated memory is still 188.7MB. Free memory was 72.3MB in the beginning and 127.5MB in the end (delta: -55.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,967 INFO L158 Benchmark]: Boogie Preprocessor took 283.84ms. Allocated memory is still 188.7MB. Free memory was 127.5MB in the beginning and 122.4MB in the end (delta: 5.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,967 INFO L158 Benchmark]: RCFGBuilder took 1958.65ms. Allocated memory was 188.7MB in the beginning and 377.5MB in the end (delta: 188.7MB). Free memory was 122.4MB in the beginning and 250.1MB in the end (delta: -127.8MB). Peak memory consumption was 160.8MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,968 INFO L158 Benchmark]: TraceAbstraction took 38143.79ms. Allocated memory was 377.5MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 249.1MB in the beginning and 985.3MB in the end (delta: -736.2MB). Peak memory consumption was 827.2MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,968 INFO L158 Benchmark]: Witness Printer took 224.01ms. Allocated memory is still 1.4GB. Free memory was 985.3MB in the beginning and 959.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 11:32:41,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.12ms. Allocated memory is still 188.7MB. Free memory was 153.0MB in the beginning and 72.3MB in the end (delta: 80.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 218.48ms. Allocated memory is still 188.7MB. Free memory was 72.3MB in the beginning and 127.5MB in the end (delta: -55.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 283.84ms. Allocated memory is still 188.7MB. Free memory was 127.5MB in the beginning and 122.4MB in the end (delta: 5.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1958.65ms. Allocated memory was 188.7MB in the beginning and 377.5MB in the end (delta: 188.7MB). Free memory was 122.4MB in the beginning and 250.1MB in the end (delta: -127.8MB). Peak memory consumption was 160.8MB. Max. memory is 16.1GB. * TraceAbstraction took 38143.79ms. Allocated memory was 377.5MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 249.1MB in the beginning and 985.3MB in the end (delta: -736.2MB). Peak memory consumption was 827.2MB. Max. memory is 16.1GB. * Witness Printer took 224.01ms. Allocated memory is still 1.4GB. Free memory was 985.3MB in the beginning and 959.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.1s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7594 SdHoareTripleChecker+Valid, 23.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7594 mSDsluCounter, 6607 SdHoareTripleChecker+Invalid, 19.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 847 mSDsCounter, 3400 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22148 IncrementalHoareTripleChecker+Invalid, 25548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3400 mSolverCounterUnsat, 5760 mSDtfsCounter, 22148 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2096 GetRequests, 2058 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16537occurred in iteration=18, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 11448 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 11422 NumberOfCodeBlocks, 11422 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 11809 ConstructedInterpolants, 0 QuantifiedInterpolants, 34273 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1994 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 14509/15046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Loop Invariant Derived loop invariant: ((((((((((((((((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (3 == a2)) || (((((long long) a29 + 18) <= 0) && (((long long) a4 + 86) <= 0)) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (((long long) a29 + 18) <= 0)) && (((long long) a0 + 61) <= 0))) || ((2 == a2) && (((long long) 98 + a0) <= 0))) || (((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (a2 == 1))) || (((5 == a2) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0))) || ((((long long) 89 + a4) <= 0) && (3 == a2))) || (((a29 <= 41) && (((long long) 42 + a4) <= 0)) && (a2 == 1))) || (((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || ((5 == a2) && (((long long) 89 + a4) <= 0))) || (((0 <= ((long long) a0 + 60)) && (((long long) a4 + 86) <= 0)) && (3 == a2))) || (((5 == a2) && (((long long) 42 + a4) <= 0)) && (((long long) 98 + a0) <= 0))) || (((((long long) 89 + a4) <= 0) && (((long long) a0 + 61) <= 0)) && (a2 <= 2))) || (((2 == a2) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0))) || (((0 <= ((long long) a0 + 60)) && (((long long) a4 + 86) <= 0)) && (a2 == 4))) || ((((long long) 89 + a4) <= 0) && (((long long) 98 + a0) <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-08 11:32:42,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE