./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 892a8506f942e825df8a32caf9cdaec45fd7cb5b4dbda5bc8acf67b64cc58b84 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:12:51,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:12:51,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:12:51,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:12:51,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:12:51,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:12:51,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:12:51,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:12:51,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:12:51,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:12:51,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:12:51,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:12:51,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:12:51,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:12:51,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:12:51,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:12:51,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:12:51,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:12:51,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:12:51,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:12:51,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:12:51,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:12:51,689 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:12:51,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:12:51,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:12:51,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:12:51,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:12:51,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:12:51,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:12:51,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:12:51,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:12:51,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:12:51,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:12:51,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:12:51,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:12:51,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:12:51,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:12:51,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:12:51,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:12:51,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 892a8506f942e825df8a32caf9cdaec45fd7cb5b4dbda5bc8acf67b64cc58b84 [2024-11-18 17:12:51,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:12:51,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:12:51,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:12:51,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:12:51,960 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:12:51,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c [2024-11-18 17:12:53,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:12:53,626 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:12:53,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c [2024-11-18 17:12:53,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f84112bae/e623c54592144183bbb4f2a2e8a165df/FLAG7e6ecbf80 [2024-11-18 17:12:53,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f84112bae/e623c54592144183bbb4f2a2e8a165df [2024-11-18 17:12:53,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:12:53,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:12:53,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:12:53,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:12:53,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:12:53,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:12:53" (1/1) ... [2024-11-18 17:12:53,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0aa964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:53, skipping insertion in model container [2024-11-18 17:12:53,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:12:53" (1/1) ... [2024-11-18 17:12:53,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:12:53,912 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c[1278,1291] [2024-11-18 17:12:54,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:12:54,147 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:12:54,156 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c[1278,1291] [2024-11-18 17:12:54,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:12:54,287 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:12:54,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54 WrapperNode [2024-11-18 17:12:54,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:12:54,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:12:54,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:12:54,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:12:54,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,482 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1383 [2024-11-18 17:12:54,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:12:54,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:12:54,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:12:54,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:12:54,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,666 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]. [2024-11-18 17:12:54,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:12:54,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:12:54,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:12:54,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:12:54,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (1/1) ... [2024-11-18 17:12:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:12:54,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:12:54,846 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) [2024-11-18 17:12:54,849 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 [2024-11-18 17:12:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:12:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 17:12:54,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 17:12:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:12:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:12:54,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:12:55,113 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:12:55,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:12:56,707 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-18 17:12:56,708 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:12:56,727 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:12:56,727 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:12:56,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:12:56 BoogieIcfgContainer [2024-11-18 17:12:56,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:12:56,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:12:56,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:12:56,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:12:56,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:12:53" (1/3) ... [2024-11-18 17:12:56,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbdc185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:12:56, skipping insertion in model container [2024-11-18 17:12:56,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:54" (2/3) ... [2024-11-18 17:12:56,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbdc185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:12:56, skipping insertion in model container [2024-11-18 17:12:56,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:12:56" (3/3) ... [2024-11-18 17:12:56,740 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w8_d8_e0.c [2024-11-18 17:12:56,760 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:12:56,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:12:56,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:12:56,850 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;@840f3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:12:56,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:12:56,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 386 states have (on average 1.4922279792746114) internal successors, (576), 387 states have internal predecessors, (576), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:12:56,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 17:12:56,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:56,871 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:12:56,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:56,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1656611576, now seen corresponding path program 1 times [2024-11-18 17:12:56,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:56,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331006862] [2024-11-18 17:12:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:12:57,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:57,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331006862] [2024-11-18 17:12:57,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331006862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:12:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961782256] [2024-11-18 17:12:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:57,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:12:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:12:57,366 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) [2024-11-18 17:12:57,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 17:12:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:57,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 17:12:57,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:12:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:12:57,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:12:57,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961782256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:57,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:12:57,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 17:12:57,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988983817] [2024-11-18 17:12:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:57,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 17:12:57,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 17:12:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:12:57,809 INFO L87 Difference]: Start difference. First operand has 392 states, 386 states have (on average 1.4922279792746114) internal successors, (576), 387 states have internal predecessors, (576), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:12:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:57,864 INFO L93 Difference]: Finished difference Result 711 states and 1061 transitions. [2024-11-18 17:12:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 17:12:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 117 [2024-11-18 17:12:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:57,882 INFO L225 Difference]: With dead ends: 711 [2024-11-18 17:12:57,883 INFO L226 Difference]: Without dead ends: 389 [2024-11-18 17:12:57,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:12:57,892 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:57,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-18 17:12:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2024-11-18 17:12:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4869791666666667) internal successors, (571), 384 states have internal predecessors, (571), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:12:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 577 transitions. [2024-11-18 17:12:57,973 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 577 transitions. Word has length 117 [2024-11-18 17:12:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:57,974 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 577 transitions. [2024-11-18 17:12:57,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:12:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 577 transitions. [2024-11-18 17:12:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 17:12:57,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:57,977 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:12:58,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 17:12:58,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 17:12:58,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:58,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 782291010, now seen corresponding path program 1 times [2024-11-18 17:12:58,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:58,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540973113] [2024-11-18 17:12:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:58,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:59,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:59,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540973113] [2024-11-18 17:12:59,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540973113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:59,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:59,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:59,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451993891] [2024-11-18 17:12:59,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:59,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:59,166 INFO L87 Difference]: Start difference. First operand 389 states and 577 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:12:59,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:59,216 INFO L93 Difference]: Finished difference Result 393 states and 581 transitions. [2024-11-18 17:12:59,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:59,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 117 [2024-11-18 17:12:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:59,223 INFO L225 Difference]: With dead ends: 393 [2024-11-18 17:12:59,223 INFO L226 Difference]: Without dead ends: 391 [2024-11-18 17:12:59,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:59,230 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 0 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:59,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1719 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:59,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-18 17:12:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-18 17:12:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4844559585492227) internal successors, (573), 386 states have internal predecessors, (573), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:12:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 579 transitions. [2024-11-18 17:12:59,258 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 579 transitions. Word has length 117 [2024-11-18 17:12:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:59,260 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 579 transitions. [2024-11-18 17:12:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:12:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 579 transitions. [2024-11-18 17:12:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 17:12:59,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:59,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:12:59,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:12:59,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1517086696, now seen corresponding path program 1 times [2024-11-18 17:12:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615931044] [2024-11-18 17:12:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:59,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:59,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615931044] [2024-11-18 17:12:59,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615931044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:59,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:59,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:59,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866613539] [2024-11-18 17:12:59,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:59,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:59,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:59,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:59,801 INFO L87 Difference]: Start difference. First operand 391 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:00,202 INFO L93 Difference]: Finished difference Result 971 states and 1441 transitions. [2024-11-18 17:13:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:00,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 118 [2024-11-18 17:13:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:00,207 INFO L225 Difference]: With dead ends: 971 [2024-11-18 17:13:00,207 INFO L226 Difference]: Without dead ends: 391 [2024-11-18 17:13:00,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:13:00,212 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1090 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:00,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1687 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:00,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-18 17:13:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-18 17:13:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4818652849740932) internal successors, (572), 386 states have internal predecessors, (572), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 578 transitions. [2024-11-18 17:13:00,231 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 578 transitions. Word has length 118 [2024-11-18 17:13:00,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:00,232 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 578 transitions. [2024-11-18 17:13:00,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 578 transitions. [2024-11-18 17:13:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 17:13:00,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:00,236 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:00,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:13:00,236 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:00,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:00,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1565089340, now seen corresponding path program 1 times [2024-11-18 17:13:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:00,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430057230] [2024-11-18 17:13:00,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:00,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:00,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:00,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430057230] [2024-11-18 17:13:00,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430057230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:00,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:00,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:00,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323634581] [2024-11-18 17:13:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:00,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:00,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:00,624 INFO L87 Difference]: Start difference. First operand 391 states and 578 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:00,660 INFO L93 Difference]: Finished difference Result 714 states and 1055 transitions. [2024-11-18 17:13:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:00,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 119 [2024-11-18 17:13:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:00,664 INFO L225 Difference]: With dead ends: 714 [2024-11-18 17:13:00,665 INFO L226 Difference]: Without dead ends: 393 [2024-11-18 17:13:00,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:00,668 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:00,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1712 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-18 17:13:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-18 17:13:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4793814432989691) internal successors, (574), 388 states have internal predecessors, (574), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 580 transitions. [2024-11-18 17:13:00,681 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 580 transitions. Word has length 119 [2024-11-18 17:13:00,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:00,682 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 580 transitions. [2024-11-18 17:13:00,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 580 transitions. [2024-11-18 17:13:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 17:13:00,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:00,685 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:00,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:13:00,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:00,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash 175163959, now seen corresponding path program 1 times [2024-11-18 17:13:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308142452] [2024-11-18 17:13:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:01,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308142452] [2024-11-18 17:13:01,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308142452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:01,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:01,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:01,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334900571] [2024-11-18 17:13:01,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:01,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:01,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:01,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:01,188 INFO L87 Difference]: Start difference. First operand 393 states and 580 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:01,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:01,301 INFO L93 Difference]: Finished difference Result 716 states and 1056 transitions. [2024-11-18 17:13:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:01,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 120 [2024-11-18 17:13:01,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:01,304 INFO L225 Difference]: With dead ends: 716 [2024-11-18 17:13:01,304 INFO L226 Difference]: Without dead ends: 393 [2024-11-18 17:13:01,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:01,305 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 484 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:01,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1070 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-18 17:13:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-18 17:13:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4768041237113403) internal successors, (573), 388 states have internal predecessors, (573), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 579 transitions. [2024-11-18 17:13:01,318 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 579 transitions. Word has length 120 [2024-11-18 17:13:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:01,319 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 579 transitions. [2024-11-18 17:13:01,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 579 transitions. [2024-11-18 17:13:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-18 17:13:01,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:01,321 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:01,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 17:13:01,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:01,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:01,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1914756474, now seen corresponding path program 1 times [2024-11-18 17:13:01,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:01,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006919476] [2024-11-18 17:13:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:01,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006919476] [2024-11-18 17:13:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006919476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:01,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33126295] [2024-11-18 17:13:01,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:01,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:01,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:01,635 INFO L87 Difference]: Start difference. First operand 393 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:01,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:01,746 INFO L93 Difference]: Finished difference Result 716 states and 1054 transitions. [2024-11-18 17:13:01,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:01,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 121 [2024-11-18 17:13:01,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:01,753 INFO L225 Difference]: With dead ends: 716 [2024-11-18 17:13:01,753 INFO L226 Difference]: Without dead ends: 393 [2024-11-18 17:13:01,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:01,754 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 1041 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:01,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1070 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-18 17:13:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-18 17:13:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4742268041237114) internal successors, (572), 388 states have internal predecessors, (572), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 578 transitions. [2024-11-18 17:13:01,766 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 578 transitions. Word has length 121 [2024-11-18 17:13:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:01,767 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 578 transitions. [2024-11-18 17:13:01,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 578 transitions. [2024-11-18 17:13:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 17:13:01,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:01,768 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:01,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 17:13:01,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:01,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1067422640, now seen corresponding path program 1 times [2024-11-18 17:13:01,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:01,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736074486] [2024-11-18 17:13:01,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:01,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736074486] [2024-11-18 17:13:02,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736074486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:02,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:02,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983627076] [2024-11-18 17:13:02,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:02,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:02,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:02,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:02,037 INFO L87 Difference]: Start difference. First operand 393 states and 578 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:02,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:02,158 INFO L93 Difference]: Finished difference Result 716 states and 1052 transitions. [2024-11-18 17:13:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 122 [2024-11-18 17:13:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:02,160 INFO L225 Difference]: With dead ends: 716 [2024-11-18 17:13:02,161 INFO L226 Difference]: Without dead ends: 393 [2024-11-18 17:13:02,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:02,162 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 559 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:02,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1077 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-18 17:13:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-18 17:13:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4716494845360826) internal successors, (571), 388 states have internal predecessors, (571), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 577 transitions. [2024-11-18 17:13:02,172 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 577 transitions. Word has length 122 [2024-11-18 17:13:02,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:02,173 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 577 transitions. [2024-11-18 17:13:02,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 577 transitions. [2024-11-18 17:13:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-18 17:13:02,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:02,174 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:02,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 17:13:02,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:02,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash 347582015, now seen corresponding path program 1 times [2024-11-18 17:13:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759003798] [2024-11-18 17:13:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:02,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:02,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:02,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759003798] [2024-11-18 17:13:02,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759003798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:02,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:02,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852741324] [2024-11-18 17:13:02,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:02,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:02,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:02,454 INFO L87 Difference]: Start difference. First operand 393 states and 577 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:02,552 INFO L93 Difference]: Finished difference Result 716 states and 1050 transitions. [2024-11-18 17:13:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:02,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 123 [2024-11-18 17:13:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:02,554 INFO L225 Difference]: With dead ends: 716 [2024-11-18 17:13:02,554 INFO L226 Difference]: Without dead ends: 393 [2024-11-18 17:13:02,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:02,556 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 1025 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:02,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1070 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-18 17:13:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-18 17:13:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.4690721649484537) internal successors, (570), 388 states have internal predecessors, (570), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 576 transitions. [2024-11-18 17:13:02,567 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 576 transitions. Word has length 123 [2024-11-18 17:13:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:02,568 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 576 transitions. [2024-11-18 17:13:02,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 576 transitions. [2024-11-18 17:13:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 17:13:02,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:02,570 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:02,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 17:13:02,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:02,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1013729001, now seen corresponding path program 1 times [2024-11-18 17:13:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134800998] [2024-11-18 17:13:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:03,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:03,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134800998] [2024-11-18 17:13:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134800998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:03,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272314332] [2024-11-18 17:13:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:03,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:03,005 INFO L87 Difference]: Start difference. First operand 393 states and 576 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:03,072 INFO L93 Difference]: Finished difference Result 715 states and 1047 transitions. [2024-11-18 17:13:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:03,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 124 [2024-11-18 17:13:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:03,075 INFO L225 Difference]: With dead ends: 715 [2024-11-18 17:13:03,075 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 17:13:03,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:03,076 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 479 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:03,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1102 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:03,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 17:13:03,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-18 17:13:03,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.4651162790697674) internal successors, (567), 387 states have internal predecessors, (567), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 573 transitions. [2024-11-18 17:13:03,088 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 573 transitions. Word has length 124 [2024-11-18 17:13:03,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:03,089 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 573 transitions. [2024-11-18 17:13:03,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:03,089 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 573 transitions. [2024-11-18 17:13:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 17:13:03,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:03,091 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:03,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 17:13:03,092 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:03,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 498210367, now seen corresponding path program 1 times [2024-11-18 17:13:03,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:03,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384558139] [2024-11-18 17:13:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:03,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:03,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:03,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384558139] [2024-11-18 17:13:03,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384558139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:03,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:03,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:03,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184934021] [2024-11-18 17:13:03,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:03,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:03,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:03,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:03,385 INFO L87 Difference]: Start difference. First operand 392 states and 573 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:03,440 INFO L93 Difference]: Finished difference Result 716 states and 1044 transitions. [2024-11-18 17:13:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:03,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 125 [2024-11-18 17:13:03,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:03,442 INFO L225 Difference]: With dead ends: 716 [2024-11-18 17:13:03,442 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 17:13:03,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:03,444 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 483 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:03,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1678 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 17:13:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-18 17:13:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.4625322997416021) internal successors, (566), 387 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 572 transitions. [2024-11-18 17:13:03,453 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 572 transitions. Word has length 125 [2024-11-18 17:13:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:03,453 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 572 transitions. [2024-11-18 17:13:03,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 572 transitions. [2024-11-18 17:13:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 17:13:03,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:03,455 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:03,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 17:13:03,455 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:03,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:03,456 INFO L85 PathProgramCache]: Analyzing trace with hash -985294398, now seen corresponding path program 1 times [2024-11-18 17:13:03,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:03,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475918764] [2024-11-18 17:13:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:03,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:03,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:03,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475918764] [2024-11-18 17:13:03,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475918764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:03,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:03,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471780776] [2024-11-18 17:13:03,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:03,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:03,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:03,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:03,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:03,830 INFO L87 Difference]: Start difference. First operand 392 states and 572 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:13:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:03,893 INFO L93 Difference]: Finished difference Result 714 states and 1040 transitions. [2024-11-18 17:13:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 126 [2024-11-18 17:13:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:03,896 INFO L225 Difference]: With dead ends: 714 [2024-11-18 17:13:03,896 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 17:13:03,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:03,897 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 517 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:03,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1106 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 17:13:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-18 17:13:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.4599483204134367) internal successors, (565), 387 states have internal predecessors, (565), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 571 transitions. [2024-11-18 17:13:03,907 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 571 transitions. Word has length 126 [2024-11-18 17:13:03,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:03,907 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 571 transitions. [2024-11-18 17:13:03,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:13:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 571 transitions. [2024-11-18 17:13:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 17:13:03,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:03,909 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:03,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 17:13:03,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:03,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1376321044, now seen corresponding path program 1 times [2024-11-18 17:13:03,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:03,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85067896] [2024-11-18 17:13:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:03,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:04,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:04,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85067896] [2024-11-18 17:13:04,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85067896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:04,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:04,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:04,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568151958] [2024-11-18 17:13:04,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:04,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:04,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:04,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:04,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:04,407 INFO L87 Difference]: Start difference. First operand 392 states and 571 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:04,513 INFO L93 Difference]: Finished difference Result 714 states and 1038 transitions. [2024-11-18 17:13:04,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:04,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 127 [2024-11-18 17:13:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:04,516 INFO L225 Difference]: With dead ends: 714 [2024-11-18 17:13:04,516 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 17:13:04,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:04,517 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 473 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:04,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1060 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:04,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 17:13:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-18 17:13:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.4573643410852712) internal successors, (564), 387 states have internal predecessors, (564), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 570 transitions. [2024-11-18 17:13:04,528 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 570 transitions. Word has length 127 [2024-11-18 17:13:04,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:04,528 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 570 transitions. [2024-11-18 17:13:04,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:04,529 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 570 transitions. [2024-11-18 17:13:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 17:13:04,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:04,530 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:04,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 17:13:04,531 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:04,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:04,531 INFO L85 PathProgramCache]: Analyzing trace with hash -743878440, now seen corresponding path program 1 times [2024-11-18 17:13:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:04,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085013643] [2024-11-18 17:13:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:04,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:05,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:05,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085013643] [2024-11-18 17:13:05,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085013643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:05,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:05,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:05,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812827306] [2024-11-18 17:13:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:05,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:05,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:05,192 INFO L87 Difference]: Start difference. First operand 392 states and 570 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:05,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:05,427 INFO L93 Difference]: Finished difference Result 720 states and 1044 transitions. [2024-11-18 17:13:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:05,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 128 [2024-11-18 17:13:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:05,430 INFO L225 Difference]: With dead ends: 720 [2024-11-18 17:13:05,430 INFO L226 Difference]: Without dead ends: 396 [2024-11-18 17:13:05,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:05,432 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 2 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:05,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2087 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-18 17:13:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2024-11-18 17:13:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.455012853470437) internal successors, (566), 389 states have internal predecessors, (566), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 572 transitions. [2024-11-18 17:13:05,443 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 572 transitions. Word has length 128 [2024-11-18 17:13:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:05,444 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 572 transitions. [2024-11-18 17:13:05,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 572 transitions. [2024-11-18 17:13:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 17:13:05,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:05,446 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:05,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 17:13:05,446 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:05,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash -626322033, now seen corresponding path program 1 times [2024-11-18 17:13:05,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:05,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186086036] [2024-11-18 17:13:05,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:05,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:05,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:05,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186086036] [2024-11-18 17:13:05,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186086036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:05,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:05,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:05,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651489334] [2024-11-18 17:13:05,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:05,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:05,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:05,901 INFO L87 Difference]: Start difference. First operand 394 states and 572 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:06,025 INFO L93 Difference]: Finished difference Result 718 states and 1040 transitions. [2024-11-18 17:13:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:06,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 129 [2024-11-18 17:13:06,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:06,029 INFO L225 Difference]: With dead ends: 718 [2024-11-18 17:13:06,029 INFO L226 Difference]: Without dead ends: 394 [2024-11-18 17:13:06,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:06,030 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 468 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:06,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1067 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:06,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-18 17:13:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-18 17:13:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.4524421593830334) internal successors, (565), 389 states have internal predecessors, (565), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 571 transitions. [2024-11-18 17:13:06,040 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 571 transitions. Word has length 129 [2024-11-18 17:13:06,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:06,040 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 571 transitions. [2024-11-18 17:13:06,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:06,041 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 571 transitions. [2024-11-18 17:13:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 17:13:06,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:06,042 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:06,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 17:13:06,042 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:06,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1884731926, now seen corresponding path program 1 times [2024-11-18 17:13:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:06,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229415706] [2024-11-18 17:13:06,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:06,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:06,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:06,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229415706] [2024-11-18 17:13:06,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229415706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:06,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:06,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164785309] [2024-11-18 17:13:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:06,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:06,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:06,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:06,546 INFO L87 Difference]: Start difference. First operand 394 states and 571 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:06,670 INFO L93 Difference]: Finished difference Result 718 states and 1038 transitions. [2024-11-18 17:13:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:06,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 130 [2024-11-18 17:13:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:06,673 INFO L225 Difference]: With dead ends: 718 [2024-11-18 17:13:06,673 INFO L226 Difference]: Without dead ends: 394 [2024-11-18 17:13:06,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:06,675 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 926 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:06,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1060 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-18 17:13:06,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-18 17:13:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.4498714652956297) internal successors, (564), 389 states have internal predecessors, (564), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 570 transitions. [2024-11-18 17:13:06,688 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 570 transitions. Word has length 130 [2024-11-18 17:13:06,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:06,688 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 570 transitions. [2024-11-18 17:13:06,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 570 transitions. [2024-11-18 17:13:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 17:13:06,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:06,690 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:06,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 17:13:06,690 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:06,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:06,691 INFO L85 PathProgramCache]: Analyzing trace with hash 324818318, now seen corresponding path program 1 times [2024-11-18 17:13:06,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:06,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197392239] [2024-11-18 17:13:06,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:06,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197392239] [2024-11-18 17:13:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197392239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:06,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699135290] [2024-11-18 17:13:06,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:06,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:06,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:06,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:06,984 INFO L87 Difference]: Start difference. First operand 394 states and 570 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:13:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:07,047 INFO L93 Difference]: Finished difference Result 718 states and 1036 transitions. [2024-11-18 17:13:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:07,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 131 [2024-11-18 17:13:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:07,049 INFO L225 Difference]: With dead ends: 718 [2024-11-18 17:13:07,049 INFO L226 Difference]: Without dead ends: 394 [2024-11-18 17:13:07,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:07,051 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 512 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:07,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1100 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:07,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-18 17:13:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-18 17:13:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.4473007712082262) internal successors, (563), 389 states have internal predecessors, (563), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 569 transitions. [2024-11-18 17:13:07,061 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 569 transitions. Word has length 131 [2024-11-18 17:13:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:07,062 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 569 transitions. [2024-11-18 17:13:07,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:13:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 569 transitions. [2024-11-18 17:13:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 17:13:07,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:07,063 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:07,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 17:13:07,064 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:07,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1382250919, now seen corresponding path program 1 times [2024-11-18 17:13:07,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:07,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177994155] [2024-11-18 17:13:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:07,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:07,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:07,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177994155] [2024-11-18 17:13:07,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177994155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:07,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:07,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 17:13:07,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052020575] [2024-11-18 17:13:07,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:07,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 17:13:07,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 17:13:07,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:07,766 INFO L87 Difference]: Start difference. First operand 394 states and 569 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:08,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:08,089 INFO L93 Difference]: Finished difference Result 786 states and 1132 transitions. [2024-11-18 17:13:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:13:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 132 [2024-11-18 17:13:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:08,092 INFO L225 Difference]: With dead ends: 786 [2024-11-18 17:13:08,092 INFO L226 Difference]: Without dead ends: 398 [2024-11-18 17:13:08,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-18 17:13:08,093 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 645 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:08,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 2557 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-18 17:13:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 396. [2024-11-18 17:13:08,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.4424552429667519) internal successors, (564), 391 states have internal predecessors, (564), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 570 transitions. [2024-11-18 17:13:08,106 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 570 transitions. Word has length 132 [2024-11-18 17:13:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:08,106 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 570 transitions. [2024-11-18 17:13:08,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 570 transitions. [2024-11-18 17:13:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 17:13:08,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:08,108 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:08,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 17:13:08,108 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:08,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:08,109 INFO L85 PathProgramCache]: Analyzing trace with hash 92468286, now seen corresponding path program 1 times [2024-11-18 17:13:08,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:08,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074399325] [2024-11-18 17:13:08,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:08,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:08,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:08,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:08,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074399325] [2024-11-18 17:13:08,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074399325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:08,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:08,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:08,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623173795] [2024-11-18 17:13:08,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:08,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:08,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:08,582 INFO L87 Difference]: Start difference. First operand 396 states and 570 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:08,633 INFO L93 Difference]: Finished difference Result 722 states and 1036 transitions. [2024-11-18 17:13:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:08,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 133 [2024-11-18 17:13:08,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:08,636 INFO L225 Difference]: With dead ends: 722 [2024-11-18 17:13:08,636 INFO L226 Difference]: Without dead ends: 396 [2024-11-18 17:13:08,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:08,637 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 469 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:08,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1090 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-18 17:13:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-18 17:13:08,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 391 states have (on average 1.4398976982097187) internal successors, (563), 391 states have internal predecessors, (563), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 569 transitions. [2024-11-18 17:13:08,648 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 569 transitions. Word has length 133 [2024-11-18 17:13:08,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:08,648 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 569 transitions. [2024-11-18 17:13:08,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 569 transitions. [2024-11-18 17:13:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 17:13:08,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:08,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:08,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 17:13:08,650 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:08,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash 571892484, now seen corresponding path program 1 times [2024-11-18 17:13:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:08,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337372883] [2024-11-18 17:13:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:09,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337372883] [2024-11-18 17:13:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337372883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:09,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397002582] [2024-11-18 17:13:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:09,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:09,289 INFO L87 Difference]: Start difference. First operand 396 states and 569 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:09,355 INFO L93 Difference]: Finished difference Result 767 states and 1089 transitions. [2024-11-18 17:13:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 134 [2024-11-18 17:13:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:09,358 INFO L225 Difference]: With dead ends: 767 [2024-11-18 17:13:09,358 INFO L226 Difference]: Without dead ends: 441 [2024-11-18 17:13:09,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:09,359 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 17 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2211 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:09,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2211 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:09,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-18 17:13:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 439. [2024-11-18 17:13:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 434 states have (on average 1.4147465437788018) internal successors, (614), 434 states have internal predecessors, (614), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 17:13:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 620 transitions. [2024-11-18 17:13:09,372 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 620 transitions. Word has length 134 [2024-11-18 17:13:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:09,372 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 620 transitions. [2024-11-18 17:13:09,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 620 transitions. [2024-11-18 17:13:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 17:13:09,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:09,374 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:09,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 17:13:09,375 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:09,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1457685238, now seen corresponding path program 1 times [2024-11-18 17:13:09,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:09,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103468265] [2024-11-18 17:13:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:10,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:10,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103468265] [2024-11-18 17:13:10,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103468265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:10,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689063882] [2024-11-18 17:13:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:10,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:10,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:10,090 INFO L87 Difference]: Start difference. First operand 439 states and 620 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:10,232 INFO L93 Difference]: Finished difference Result 974 states and 1355 transitions. [2024-11-18 17:13:10,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 135 [2024-11-18 17:13:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:10,236 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:10,236 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:10,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:10,238 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 849 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:10,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2190 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:10,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:10,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3835845896147403) internal successors, (826), 597 states have internal predecessors, (826), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 838 transitions. [2024-11-18 17:13:10,262 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 838 transitions. Word has length 135 [2024-11-18 17:13:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:10,263 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 838 transitions. [2024-11-18 17:13:10,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 838 transitions. [2024-11-18 17:13:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-18 17:13:10,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:10,270 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:10,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 17:13:10,271 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:10,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2091908698, now seen corresponding path program 1 times [2024-11-18 17:13:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:10,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816757452] [2024-11-18 17:13:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:10,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:11,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:11,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816757452] [2024-11-18 17:13:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816757452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:11,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:11,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044482547] [2024-11-18 17:13:11,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:11,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:11,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:11,068 INFO L87 Difference]: Start difference. First operand 605 states and 838 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:11,161 INFO L93 Difference]: Finished difference Result 974 states and 1354 transitions. [2024-11-18 17:13:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:11,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 324 [2024-11-18 17:13:11,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:11,164 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:11,165 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:11,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:11,166 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 512 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:11,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1061 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:11,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3819095477386936) internal successors, (825), 597 states have internal predecessors, (825), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 837 transitions. [2024-11-18 17:13:11,182 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 837 transitions. Word has length 324 [2024-11-18 17:13:11,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:11,183 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 837 transitions. [2024-11-18 17:13:11,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 837 transitions. [2024-11-18 17:13:11,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-18 17:13:11,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:11,188 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:11,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 17:13:11,188 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:11,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash -722514356, now seen corresponding path program 1 times [2024-11-18 17:13:11,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459854485] [2024-11-18 17:13:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:11,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:11,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459854485] [2024-11-18 17:13:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459854485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:11,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861411340] [2024-11-18 17:13:11,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:11,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:11,920 INFO L87 Difference]: Start difference. First operand 605 states and 837 transitions. Second operand has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:12,018 INFO L93 Difference]: Finished difference Result 974 states and 1352 transitions. [2024-11-18 17:13:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 325 [2024-11-18 17:13:12,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:12,021 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:12,022 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:12,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:12,025 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 504 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:12,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1061 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3802345058626466) internal successors, (824), 597 states have internal predecessors, (824), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:12,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 836 transitions. [2024-11-18 17:13:12,043 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 836 transitions. Word has length 325 [2024-11-18 17:13:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:12,043 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 836 transitions. [2024-11-18 17:13:12,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 836 transitions. [2024-11-18 17:13:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-18 17:13:12,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:12,048 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:12,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 17:13:12,048 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:12,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:12,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1951186673, now seen corresponding path program 1 times [2024-11-18 17:13:12,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:12,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141641515] [2024-11-18 17:13:12,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:12,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:12,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:12,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141641515] [2024-11-18 17:13:12,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141641515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:12,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:12,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:12,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764834715] [2024-11-18 17:13:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:12,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:12,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:12,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:12,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:12,792 INFO L87 Difference]: Start difference. First operand 605 states and 836 transitions. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:12,884 INFO L93 Difference]: Finished difference Result 974 states and 1350 transitions. [2024-11-18 17:13:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 326 [2024-11-18 17:13:12,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:12,887 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:12,887 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:12,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:12,889 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 900 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:12,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1054 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3785594639865997) internal successors, (823), 597 states have internal predecessors, (823), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 835 transitions. [2024-11-18 17:13:12,908 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 835 transitions. Word has length 326 [2024-11-18 17:13:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:12,909 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 835 transitions. [2024-11-18 17:13:12,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 835 transitions. [2024-11-18 17:13:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-18 17:13:12,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:12,913 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:12,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 17:13:12,914 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:12,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1071864095, now seen corresponding path program 1 times [2024-11-18 17:13:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522019362] [2024-11-18 17:13:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522019362] [2024-11-18 17:13:13,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522019362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:13,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:13,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:13,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983706123] [2024-11-18 17:13:13,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:13,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:13,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:13,684 INFO L87 Difference]: Start difference. First operand 605 states and 835 transitions. Second operand has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:13,781 INFO L93 Difference]: Finished difference Result 974 states and 1348 transitions. [2024-11-18 17:13:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:13,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 327 [2024-11-18 17:13:13,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:13,784 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:13,784 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:13,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:13,786 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 884 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:13,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1054 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3768844221105527) internal successors, (822), 597 states have internal predecessors, (822), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 834 transitions. [2024-11-18 17:13:13,804 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 834 transitions. Word has length 327 [2024-11-18 17:13:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:13,805 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 834 transitions. [2024-11-18 17:13:13,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 834 transitions. [2024-11-18 17:13:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-18 17:13:13,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:13,810 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:13,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 17:13:13,810 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:13,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:13,811 INFO L85 PathProgramCache]: Analyzing trace with hash 437028676, now seen corresponding path program 1 times [2024-11-18 17:13:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:13,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134438571] [2024-11-18 17:13:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:13,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:14,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134438571] [2024-11-18 17:13:14,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134438571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:14,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:14,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:14,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092538862] [2024-11-18 17:13:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:14,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:14,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:14,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:14,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:14,722 INFO L87 Difference]: Start difference. First operand 605 states and 834 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:14,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:14,790 INFO L93 Difference]: Finished difference Result 974 states and 1346 transitions. [2024-11-18 17:13:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:14,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 328 [2024-11-18 17:13:14,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:14,794 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:14,794 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:14,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:14,795 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 473 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:14,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1089 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3752093802345058) internal successors, (821), 597 states have internal predecessors, (821), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 833 transitions. [2024-11-18 17:13:14,822 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 833 transitions. Word has length 328 [2024-11-18 17:13:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:14,822 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 833 transitions. [2024-11-18 17:13:14,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 833 transitions. [2024-11-18 17:13:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-18 17:13:14,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:14,829 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:14,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 17:13:14,830 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:14,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash -825845002, now seen corresponding path program 1 times [2024-11-18 17:13:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457197754] [2024-11-18 17:13:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:15,828 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:15,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:15,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457197754] [2024-11-18 17:13:15,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457197754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:15,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:15,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49880875] [2024-11-18 17:13:15,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:15,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:15,831 INFO L87 Difference]: Start difference. First operand 605 states and 833 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:15,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:15,893 INFO L93 Difference]: Finished difference Result 974 states and 1344 transitions. [2024-11-18 17:13:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:15,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 329 [2024-11-18 17:13:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:15,896 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:15,896 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:15,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:15,898 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 465 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:15,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1089 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:15,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.373534338358459) internal successors, (820), 597 states have internal predecessors, (820), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 832 transitions. [2024-11-18 17:13:15,915 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 832 transitions. Word has length 329 [2024-11-18 17:13:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:15,916 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 832 transitions. [2024-11-18 17:13:15,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:15,916 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 832 transitions. [2024-11-18 17:13:15,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-18 17:13:15,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:15,918 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:15,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 17:13:15,919 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:15,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash -174190343, now seen corresponding path program 1 times [2024-11-18 17:13:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245997988] [2024-11-18 17:13:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:16,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:16,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245997988] [2024-11-18 17:13:16,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245997988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:16,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:16,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852020938] [2024-11-18 17:13:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:16,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:16,703 INFO L87 Difference]: Start difference. First operand 605 states and 832 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:16,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:16,983 INFO L93 Difference]: Finished difference Result 974 states and 1342 transitions. [2024-11-18 17:13:16,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:16,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 330 [2024-11-18 17:13:16,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:16,987 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:16,987 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:16,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:16,988 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 785 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:16,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 798 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3718592964824121) internal successors, (819), 597 states have internal predecessors, (819), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 831 transitions. [2024-11-18 17:13:17,004 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 831 transitions. Word has length 330 [2024-11-18 17:13:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:17,004 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 831 transitions. [2024-11-18 17:13:17,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 831 transitions. [2024-11-18 17:13:17,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-18 17:13:17,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:17,007 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:17,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 17:13:17,007 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:17,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1306618507, now seen corresponding path program 1 times [2024-11-18 17:13:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:17,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109455668] [2024-11-18 17:13:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:17,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:18,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:18,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109455668] [2024-11-18 17:13:18,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109455668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:18,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:18,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:18,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665236518] [2024-11-18 17:13:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:18,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:18,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:18,290 INFO L87 Difference]: Start difference. First operand 605 states and 831 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:18,347 INFO L93 Difference]: Finished difference Result 974 states and 1340 transitions. [2024-11-18 17:13:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:18,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 331 [2024-11-18 17:13:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:18,350 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:18,350 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:18,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:18,352 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 379 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:18,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1080 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:18,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3701842546063652) internal successors, (818), 597 states have internal predecessors, (818), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 830 transitions. [2024-11-18 17:13:18,369 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 830 transitions. Word has length 331 [2024-11-18 17:13:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:18,370 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 830 transitions. [2024-11-18 17:13:18,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 830 transitions. [2024-11-18 17:13:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-18 17:13:18,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:18,372 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:18,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 17:13:18,373 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:18,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash 84549355, now seen corresponding path program 1 times [2024-11-18 17:13:18,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:18,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398832168] [2024-11-18 17:13:18,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:18,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:19,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:19,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398832168] [2024-11-18 17:13:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398832168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:19,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:19,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131133608] [2024-11-18 17:13:19,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:19,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:19,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:19,747 INFO L87 Difference]: Start difference. First operand 605 states and 830 transitions. Second operand has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:19,844 INFO L93 Difference]: Finished difference Result 974 states and 1338 transitions. [2024-11-18 17:13:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 332 [2024-11-18 17:13:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:19,848 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:19,848 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:19,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:19,856 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 857 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:19,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1046 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:19,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3685092127303182) internal successors, (817), 597 states have internal predecessors, (817), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 829 transitions. [2024-11-18 17:13:19,875 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 829 transitions. Word has length 332 [2024-11-18 17:13:19,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:19,876 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 829 transitions. [2024-11-18 17:13:19,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 829 transitions. [2024-11-18 17:13:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-18 17:13:19,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:19,878 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:19,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 17:13:19,879 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:19,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:19,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1221638347, now seen corresponding path program 1 times [2024-11-18 17:13:19,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:19,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303891967] [2024-11-18 17:13:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:19,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:21,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303891967] [2024-11-18 17:13:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303891967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:21,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596500227] [2024-11-18 17:13:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:21,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:21,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:21,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:21,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:21,291 INFO L87 Difference]: Start difference. First operand 605 states and 829 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:21,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:21,401 INFO L93 Difference]: Finished difference Result 974 states and 1336 transitions. [2024-11-18 17:13:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:21,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 333 [2024-11-18 17:13:21,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:21,404 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:21,405 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:21,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:21,407 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 451 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:21,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1053 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:21,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:21,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3668341708542713) internal successors, (816), 597 states have internal predecessors, (816), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 828 transitions. [2024-11-18 17:13:21,426 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 828 transitions. Word has length 333 [2024-11-18 17:13:21,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:21,426 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 828 transitions. [2024-11-18 17:13:21,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 828 transitions. [2024-11-18 17:13:21,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-18 17:13:21,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:21,430 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:21,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 17:13:21,430 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:21,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1872351418, now seen corresponding path program 1 times [2024-11-18 17:13:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:21,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832037890] [2024-11-18 17:13:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:21,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:22,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:22,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832037890] [2024-11-18 17:13:22,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832037890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:22,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:22,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:22,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061893818] [2024-11-18 17:13:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:22,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:22,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:22,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:22,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:22,719 INFO L87 Difference]: Start difference. First operand 605 states and 828 transitions. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:22,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:22,815 INFO L93 Difference]: Finished difference Result 974 states and 1334 transitions. [2024-11-18 17:13:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:22,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 334 [2024-11-18 17:13:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:22,819 INFO L225 Difference]: With dead ends: 974 [2024-11-18 17:13:22,819 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 17:13:22,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:22,820 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 837 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:22,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1046 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 17:13:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 17:13:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 597 states have (on average 1.3651591289782246) internal successors, (815), 597 states have internal predecessors, (815), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-18 17:13:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 827 transitions. [2024-11-18 17:13:22,836 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 827 transitions. Word has length 334 [2024-11-18 17:13:22,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:22,837 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 827 transitions. [2024-11-18 17:13:22,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 827 transitions. [2024-11-18 17:13:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-18 17:13:22,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:22,840 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:22,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 17:13:22,841 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:22,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:22,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2098226244, now seen corresponding path program 1 times [2024-11-18 17:13:22,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:22,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356332845] [2024-11-18 17:13:22,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:22,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:24,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:24,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356332845] [2024-11-18 17:13:24,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356332845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:24,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:24,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:24,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358078576] [2024-11-18 17:13:24,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:24,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:24,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:24,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:24,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:24,186 INFO L87 Difference]: Start difference. First operand 605 states and 827 transitions. Second operand has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:24,685 INFO L93 Difference]: Finished difference Result 1421 states and 1949 transitions. [2024-11-18 17:13:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:24,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 335 [2024-11-18 17:13:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:24,691 INFO L225 Difference]: With dead ends: 1421 [2024-11-18 17:13:24,691 INFO L226 Difference]: Without dead ends: 1052 [2024-11-18 17:13:24,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:24,692 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 352 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:24,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2310 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:13:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-18 17:13:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 930. [2024-11-18 17:13:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 919 states have (on average 1.3612622415669207) internal successors, (1251), 919 states have internal predecessors, (1251), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 17:13:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1269 transitions. [2024-11-18 17:13:24,717 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1269 transitions. Word has length 335 [2024-11-18 17:13:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:24,718 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1269 transitions. [2024-11-18 17:13:24,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:24,718 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1269 transitions. [2024-11-18 17:13:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-18 17:13:24,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:24,723 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:24,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 17:13:24,723 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:24,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1248794528, now seen corresponding path program 1 times [2024-11-18 17:13:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600095887] [2024-11-18 17:13:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:26,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:26,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600095887] [2024-11-18 17:13:26,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600095887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:26,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:26,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:26,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100964901] [2024-11-18 17:13:26,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:26,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:26,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:26,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:26,292 INFO L87 Difference]: Start difference. First operand 930 states and 1269 transitions. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:26,804 INFO L93 Difference]: Finished difference Result 1322 states and 1808 transitions. [2024-11-18 17:13:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:26,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 336 [2024-11-18 17:13:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:26,809 INFO L225 Difference]: With dead ends: 1322 [2024-11-18 17:13:26,809 INFO L226 Difference]: Without dead ends: 953 [2024-11-18 17:13:26,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:26,811 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1004 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:26,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1550 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:13:26,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-18 17:13:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 931. [2024-11-18 17:13:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 920 states have (on average 1.3608695652173912) internal successors, (1252), 920 states have internal predecessors, (1252), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 17:13:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1270 transitions. [2024-11-18 17:13:26,833 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1270 transitions. Word has length 336 [2024-11-18 17:13:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:26,834 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1270 transitions. [2024-11-18 17:13:26,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1270 transitions. [2024-11-18 17:13:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-18 17:13:26,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:26,837 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:26,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 17:13:26,837 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:26,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:26,838 INFO L85 PathProgramCache]: Analyzing trace with hash 214777389, now seen corresponding path program 1 times [2024-11-18 17:13:26,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:26,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009435025] [2024-11-18 17:13:26,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:26,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-18 17:13:28,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009435025] [2024-11-18 17:13:28,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009435025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:28,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:28,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 17:13:28,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185013384] [2024-11-18 17:13:28,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:28,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 17:13:28,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:28,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 17:13:28,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:13:28,513 INFO L87 Difference]: Start difference. First operand 931 states and 1270 transitions. Second operand has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:29,633 INFO L93 Difference]: Finished difference Result 2098 states and 2855 transitions. [2024-11-18 17:13:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 17:13:29,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 336 [2024-11-18 17:13:29,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:29,640 INFO L225 Difference]: With dead ends: 2098 [2024-11-18 17:13:29,641 INFO L226 Difference]: Without dead ends: 1615 [2024-11-18 17:13:29,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:29,642 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 1365 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:29,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 4224 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 17:13:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-18 17:13:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1000. [2024-11-18 17:13:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 986 states have (on average 1.3630831643002028) internal successors, (1344), 986 states have internal predecessors, (1344), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1368 transitions. [2024-11-18 17:13:29,678 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1368 transitions. Word has length 336 [2024-11-18 17:13:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:29,679 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1368 transitions. [2024-11-18 17:13:29,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1368 transitions. [2024-11-18 17:13:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-18 17:13:29,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:29,686 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:29,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 17:13:29,687 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:29,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash 401373631, now seen corresponding path program 1 times [2024-11-18 17:13:29,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:29,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770702358] [2024-11-18 17:13:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:29,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 17:13:31,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770702358] [2024-11-18 17:13:31,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770702358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:31,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141211326] [2024-11-18 17:13:31,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:31,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:31,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:31,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:31,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:31,427 INFO L87 Difference]: Start difference. First operand 1000 states and 1368 transitions. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:31,698 INFO L93 Difference]: Finished difference Result 1660 states and 2245 transitions. [2024-11-18 17:13:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 337 [2024-11-18 17:13:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:31,705 INFO L225 Difference]: With dead ends: 1660 [2024-11-18 17:13:31,705 INFO L226 Difference]: Without dead ends: 1012 [2024-11-18 17:13:31,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:31,708 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 321 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:31,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1182 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-18 17:13:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1006. [2024-11-18 17:13:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 992 states have (on average 1.3608870967741935) internal successors, (1350), 992 states have internal predecessors, (1350), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1374 transitions. [2024-11-18 17:13:31,733 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1374 transitions. Word has length 337 [2024-11-18 17:13:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:31,733 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1374 transitions. [2024-11-18 17:13:31,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1374 transitions. [2024-11-18 17:13:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-18 17:13:31,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:31,737 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:31,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 17:13:31,737 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1255397875, now seen corresponding path program 1 times [2024-11-18 17:13:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105985900] [2024-11-18 17:13:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-18 17:13:32,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:32,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105985900] [2024-11-18 17:13:32,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105985900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:32,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:32,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:32,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312659533] [2024-11-18 17:13:32,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:32,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:32,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:32,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:32,848 INFO L87 Difference]: Start difference. First operand 1006 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:33,081 INFO L93 Difference]: Finished difference Result 1656 states and 2235 transitions. [2024-11-18 17:13:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 337 [2024-11-18 17:13:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:33,087 INFO L225 Difference]: With dead ends: 1656 [2024-11-18 17:13:33,087 INFO L226 Difference]: Without dead ends: 1006 [2024-11-18 17:13:33,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:33,089 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 499 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:33,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 803 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-11-18 17:13:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2024-11-18 17:13:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 992 states have (on average 1.3548387096774193) internal successors, (1344), 992 states have internal predecessors, (1344), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1368 transitions. [2024-11-18 17:13:33,113 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1368 transitions. Word has length 337 [2024-11-18 17:13:33,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:33,114 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1368 transitions. [2024-11-18 17:13:33,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1368 transitions. [2024-11-18 17:13:33,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-18 17:13:33,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:33,117 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:33,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 17:13:33,117 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:33,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1921807987, now seen corresponding path program 1 times [2024-11-18 17:13:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605794038] [2024-11-18 17:13:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-18 17:13:34,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:34,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605794038] [2024-11-18 17:13:34,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605794038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:34,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:34,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772317275] [2024-11-18 17:13:34,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:34,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:34,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:34,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:34,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:34,549 INFO L87 Difference]: Start difference. First operand 1006 states and 1368 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:34,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:34,969 INFO L93 Difference]: Finished difference Result 1868 states and 2528 transitions. [2024-11-18 17:13:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:34,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 339 [2024-11-18 17:13:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:34,974 INFO L225 Difference]: With dead ends: 1868 [2024-11-18 17:13:34,974 INFO L226 Difference]: Without dead ends: 1014 [2024-11-18 17:13:34,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:34,976 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 509 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:34,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1549 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:13:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-18 17:13:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1010. [2024-11-18 17:13:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 996 states have (on average 1.3534136546184738) internal successors, (1348), 996 states have internal predecessors, (1348), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1372 transitions. [2024-11-18 17:13:35,001 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1372 transitions. Word has length 339 [2024-11-18 17:13:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:35,001 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1372 transitions. [2024-11-18 17:13:35,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-18 17:13:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1372 transitions. [2024-11-18 17:13:35,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-18 17:13:35,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:35,004 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:35,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 17:13:35,005 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:35,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:35,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1578736179, now seen corresponding path program 1 times [2024-11-18 17:13:35,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:35,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340216162] [2024-11-18 17:13:35,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:35,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 82 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:36,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:36,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340216162] [2024-11-18 17:13:36,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340216162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605530990] [2024-11-18 17:13:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:36,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:36,992 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) [2024-11-18 17:13:36,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 17:13:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:38,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-18 17:13:38,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:13:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-18 17:13:38,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:13:38,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605530990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:38,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:13:38,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2024-11-18 17:13:38,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472454597] [2024-11-18 17:13:38,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:38,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 17:13:38,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:38,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 17:13:38,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-18 17:13:38,392 INFO L87 Difference]: Start difference. First operand 1010 states and 1372 transitions. Second operand has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 17:13:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:39,031 INFO L93 Difference]: Finished difference Result 1843 states and 2492 transitions. [2024-11-18 17:13:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 17:13:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 341 [2024-11-18 17:13:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:39,035 INFO L225 Difference]: With dead ends: 1843 [2024-11-18 17:13:39,036 INFO L226 Difference]: Without dead ends: 1030 [2024-11-18 17:13:39,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-18 17:13:39,038 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 496 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:39,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 2970 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 17:13:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-18 17:13:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1022. [2024-11-18 17:13:39,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1008 states have (on average 1.3412698412698412) internal successors, (1352), 1008 states have internal predecessors, (1352), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:39,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1376 transitions. [2024-11-18 17:13:39,061 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1376 transitions. Word has length 341 [2024-11-18 17:13:39,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:39,062 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1376 transitions. [2024-11-18 17:13:39,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.3) internal successors, (263), 10 states have internal predecessors, (263), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 17:13:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1376 transitions. [2024-11-18 17:13:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-18 17:13:39,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:39,065 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:39,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 17:13:39,266 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,SelfDestructingSolverStorable37 [2024-11-18 17:13:39,266 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:39,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash 112765293, now seen corresponding path program 1 times [2024-11-18 17:13:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:39,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608960165] [2024-11-18 17:13:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:39,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 84 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:41,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:41,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608960165] [2024-11-18 17:13:41,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608960165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:41,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962405999] [2024-11-18 17:13:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:41,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:41,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:41,085 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) [2024-11-18 17:13:41,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 17:13:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:42,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 2055 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-18 17:13:42,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:13:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-18 17:13:42,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:13:42,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962405999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:42,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:13:42,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-18 17:13:42,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726409960] [2024-11-18 17:13:42,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:42,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:42,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:42,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-18 17:13:42,262 INFO L87 Difference]: Start difference. First operand 1022 states and 1376 transitions. Second operand has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 17:13:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:42,596 INFO L93 Difference]: Finished difference Result 1851 states and 2481 transitions. [2024-11-18 17:13:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 345 [2024-11-18 17:13:42,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:42,600 INFO L225 Difference]: With dead ends: 1851 [2024-11-18 17:13:42,600 INFO L226 Difference]: Without dead ends: 1038 [2024-11-18 17:13:42,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-18 17:13:42,602 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 488 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:42,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1541 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:42,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-18 17:13:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2024-11-18 17:13:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1020 states have (on average 1.3372549019607842) internal successors, (1364), 1020 states have internal predecessors, (1364), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1388 transitions. [2024-11-18 17:13:42,629 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1388 transitions. Word has length 345 [2024-11-18 17:13:42,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:42,632 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1388 transitions. [2024-11-18 17:13:42,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 17:13:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1388 transitions. [2024-11-18 17:13:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-18 17:13:42,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:42,636 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:42,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 17:13:42,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:42,838 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:42,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:42,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2040544743, now seen corresponding path program 1 times [2024-11-18 17:13:42,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:42,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209789734] [2024-11-18 17:13:42,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:42,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 86 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209789734] [2024-11-18 17:13:44,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209789734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040593689] [2024-11-18 17:13:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:44,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:44,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:44,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:13:44,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 17:13:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:46,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-18 17:13:46,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:13:46,742 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 17:13:46,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:13:46,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040593689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:46,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:13:46,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2024-11-18 17:13:46,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800010887] [2024-11-18 17:13:46,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:46,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 17:13:46,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:46,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 17:13:46,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-18 17:13:46,745 INFO L87 Difference]: Start difference. First operand 1034 states and 1388 transitions. Second operand has 9 states, 9 states have (on average 35.77777777777778) internal successors, (322), 9 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:47,295 INFO L93 Difference]: Finished difference Result 2441 states and 3260 transitions. [2024-11-18 17:13:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 17:13:47,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.77777777777778) internal successors, (322), 9 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 349 [2024-11-18 17:13:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:47,302 INFO L225 Difference]: With dead ends: 2441 [2024-11-18 17:13:47,302 INFO L226 Difference]: Without dead ends: 1796 [2024-11-18 17:13:47,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-18 17:13:47,304 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1595 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:47,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 2093 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:13:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-18 17:13:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1450. [2024-11-18 17:13:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1427 states have (on average 1.3160476524176594) internal successors, (1878), 1427 states have internal predecessors, (1878), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-18 17:13:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1920 transitions. [2024-11-18 17:13:47,346 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1920 transitions. Word has length 349 [2024-11-18 17:13:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:47,346 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 1920 transitions. [2024-11-18 17:13:47,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.77777777777778) internal successors, (322), 9 states have internal predecessors, (322), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1920 transitions. [2024-11-18 17:13:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-18 17:13:47,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:47,351 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:47,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 17:13:47,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-18 17:13:47,552 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:47,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:47,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1375062564, now seen corresponding path program 1 times [2024-11-18 17:13:47,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:47,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681227987] [2024-11-18 17:13:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-18 17:13:48,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:48,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681227987] [2024-11-18 17:13:48,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681227987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:48,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:48,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041629412] [2024-11-18 17:13:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:48,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:48,102 INFO L87 Difference]: Start difference. First operand 1450 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:48,149 INFO L93 Difference]: Finished difference Result 2245 states and 2981 transitions. [2024-11-18 17:13:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:48,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 349 [2024-11-18 17:13:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:48,154 INFO L225 Difference]: With dead ends: 2245 [2024-11-18 17:13:48,154 INFO L226 Difference]: Without dead ends: 1540 [2024-11-18 17:13:48,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:48,156 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 16 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:48,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2164 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-18 17:13:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1540. [2024-11-18 17:13:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1517 states have (on average 1.3236651285431773) internal successors, (2008), 1517 states have internal predecessors, (2008), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-18 17:13:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2050 transitions. [2024-11-18 17:13:48,201 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2050 transitions. Word has length 349 [2024-11-18 17:13:48,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:48,201 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2050 transitions. [2024-11-18 17:13:48,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2050 transitions. [2024-11-18 17:13:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-18 17:13:48,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:48,206 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 17:13:48,206 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -391186458, now seen corresponding path program 1 times [2024-11-18 17:13:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649644139] [2024-11-18 17:13:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 86 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:50,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649644139] [2024-11-18 17:13:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649644139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953138816] [2024-11-18 17:13:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:50,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:50,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:50,032 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:13:50,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 17:13:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:51,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 17:13:51,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:13:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:51,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:13:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:51,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953138816] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:51,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:13:51,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 8] total 22 [2024-11-18 17:13:51,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906865485] [2024-11-18 17:13:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:51,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 17:13:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:51,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 17:13:51,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-18 17:13:51,891 INFO L87 Difference]: Start difference. First operand 1540 states and 2050 transitions. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:52,020 INFO L93 Difference]: Finished difference Result 2330 states and 3121 transitions. [2024-11-18 17:13:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 17:13:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 350 [2024-11-18 17:13:52,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:52,026 INFO L225 Difference]: With dead ends: 2330 [2024-11-18 17:13:52,026 INFO L226 Difference]: Without dead ends: 1934 [2024-11-18 17:13:52,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2024-11-18 17:13:52,028 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 352 mSDsluCounter, 4382 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 5348 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:52,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 5348 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-18 17:13:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1731. [2024-11-18 17:13:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1705 states have (on average 1.3184750733137829) internal successors, (2248), 1705 states have internal predecessors, (2248), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 17:13:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2296 transitions. [2024-11-18 17:13:52,066 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2296 transitions. Word has length 350 [2024-11-18 17:13:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:52,067 INFO L471 AbstractCegarLoop]: Abstraction has 1731 states and 2296 transitions. [2024-11-18 17:13:52,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2296 transitions. [2024-11-18 17:13:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-18 17:13:52,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:52,073 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:52,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 17:13:52,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:52,274 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:52,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1872315501, now seen corresponding path program 1 times [2024-11-18 17:13:52,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:52,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852984965] [2024-11-18 17:13:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:52,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:54,327 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-18 17:13:54,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:54,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852984965] [2024-11-18 17:13:54,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852984965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:54,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:54,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 17:13:54,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166763328] [2024-11-18 17:13:54,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:54,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 17:13:54,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:54,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 17:13:54,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:54,330 INFO L87 Difference]: Start difference. First operand 1731 states and 2296 transitions. Second operand has 9 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 17:13:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:55,314 INFO L93 Difference]: Finished difference Result 4108 states and 5378 transitions. [2024-11-18 17:13:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 17:13:55,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 351 [2024-11-18 17:13:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:55,318 INFO L225 Difference]: With dead ends: 4108 [2024-11-18 17:13:55,318 INFO L226 Difference]: Without dead ends: 2976 [2024-11-18 17:13:55,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-18 17:13:55,320 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 849 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:55,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 3344 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 17:13:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-11-18 17:13:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2023. [2024-11-18 17:13:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 1989 states have (on average 1.3252890899949723) internal successors, (2636), 1989 states have internal predecessors, (2636), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-18 17:13:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2700 transitions. [2024-11-18 17:13:55,365 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2700 transitions. Word has length 351 [2024-11-18 17:13:55,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:55,365 INFO L471 AbstractCegarLoop]: Abstraction has 2023 states and 2700 transitions. [2024-11-18 17:13:55,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 17:13:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2700 transitions. [2024-11-18 17:13:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-18 17:13:55,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:55,370 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 17:13:55,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 17:13:55,370 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:55,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash -544812947, now seen corresponding path program 1 times [2024-11-18 17:13:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:55,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913841702] [2024-11-18 17:13:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 87 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:57,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:57,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913841702] [2024-11-18 17:13:57,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913841702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:57,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545852410] [2024-11-18 17:13:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:57,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:57,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:57,893 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:13:57,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 17:13:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:59,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-18 17:13:59,313 INFO L278 TraceCheckSpWp]: Computing forward predicates...