./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e8b15ed099b1f7cf4258894df881e9cd3bcfa356a0bdf33a8c3af6ce17b2dcd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:37:52,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:37:52,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:37:52,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:37:52,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:37:52,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:37:52,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:37:52,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:37:52,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:37:52,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:37:52,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:37:52,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:37:52,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:37:52,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:37:52,245 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:37:52,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:37:52,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:37:52,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:37:52,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:37:52,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:37:52,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:37:52,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:37:52,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:37:52,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:37:52,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:37:52,252 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:37:52,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:37:52,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:37:52,253 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:37:52,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:37:52,253 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:37:52,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:37:52,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:37:52,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:37:52,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:37:52,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:37:52,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:37:52,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:37:52,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:37:52,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:37:52,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:37:52,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:37:52,258 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e8b15ed099b1f7cf4258894df881e9cd3bcfa356a0bdf33a8c3af6ce17b2dcd [2024-11-16 09:37:52,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:37:52,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:37:52,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:37:52,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:37:52,576 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:37:52,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c [2024-11-16 09:37:54,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:37:54,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:37:54,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c [2024-11-16 09:37:54,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def9ec359/8be79006e73d40e184a038742f2549de/FLAG4261a22c6 [2024-11-16 09:37:54,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def9ec359/8be79006e73d40e184a038742f2549de [2024-11-16 09:37:54,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:37:54,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:37:54,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:37:54,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:37:54,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:37:54,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:37:54" (1/1) ... [2024-11-16 09:37:54,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1806be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:54, skipping insertion in model container [2024-11-16 09:37:54,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:37:54" (1/1) ... [2024-11-16 09:37:54,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:37:55,046 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c[8616,8629] [2024-11-16 09:37:55,071 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c[9458,9471] [2024-11-16 09:37:55,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:37:55,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:37:55,859 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c[8616,8629] [2024-11-16 09:37:55,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c[9458,9471] [2024-11-16 09:37:56,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:37:56,416 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:37:56,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56 WrapperNode [2024-11-16 09:37:56,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:37:56,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:37:56,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:37:56,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:37:56,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:56,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:56,782 INFO L138 Inliner]: procedures = 34, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5037 [2024-11-16 09:37:56,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:37:56,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:37:56,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:37:56,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:37:56,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:56,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:56,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,060 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:37:57,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,235 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:37:57,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:37:57,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:37:57,336 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:37:57,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (1/1) ... [2024-11-16 09:37:57,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:37:57,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:37:57,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:37:57,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:37:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:37:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:37:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:37:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:37:57,549 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:37:57,552 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:38:01,829 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5020: havoc calculate_output3_#t~ret36#1; [2024-11-16 09:38:01,829 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2051: havoc calculate_output_#t~ret34#1; [2024-11-16 09:38:01,830 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3530: havoc calculate_output2_#t~ret35#1; [2024-11-16 09:38:02,041 INFO L? ?]: Removed 737 outVars from TransFormulas that were not future-live. [2024-11-16 09:38:02,041 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:38:02,086 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:38:02,086 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:38:02,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:38:02 BoogieIcfgContainer [2024-11-16 09:38:02,088 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:38:02,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:38:02,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:38:02,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:38:02,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:37:54" (1/3) ... [2024-11-16 09:38:02,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3230c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:38:02, skipping insertion in model container [2024-11-16 09:38:02,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:37:56" (2/3) ... [2024-11-16 09:38:02,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3230c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:38:02, skipping insertion in model container [2024-11-16 09:38:02,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:38:02" (3/3) ... [2024-11-16 09:38:02,098 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label07.c [2024-11-16 09:38:02,119 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:38:02,120 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:38:02,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:38:02,238 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;@3f87670b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:38:02,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:38:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 892 states, 889 states have (on average 1.8987626546681664) internal successors, (1688), 891 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:02,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 09:38:02,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:02,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:02,254 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:02,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:02,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1920007542, now seen corresponding path program 1 times [2024-11-16 09:38:02,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:02,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102820459] [2024-11-16 09:38:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:02,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:02,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:02,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102820459] [2024-11-16 09:38:02,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102820459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:02,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:02,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:38:02,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963004930] [2024-11-16 09:38:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:02,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:02,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:02,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:02,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:02,537 INFO L87 Difference]: Start difference. First operand has 892 states, 889 states have (on average 1.8987626546681664) internal successors, (1688), 891 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:06,143 INFO L93 Difference]: Finished difference Result 2509 states and 4823 transitions. [2024-11-16 09:38:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:06,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-16 09:38:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:06,173 INFO L225 Difference]: With dead ends: 2509 [2024-11-16 09:38:06,173 INFO L226 Difference]: Without dead ends: 1576 [2024-11-16 09:38:06,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:06,190 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 968 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:06,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 223 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 09:38:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-16 09:38:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2024-11-16 09:38:06,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1574 states have (on average 1.860864040660737) internal successors, (2929), 1575 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2929 transitions. [2024-11-16 09:38:06,331 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2929 transitions. Word has length 9 [2024-11-16 09:38:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:06,331 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 2929 transitions. [2024-11-16 09:38:06,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2929 transitions. [2024-11-16 09:38:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 09:38:06,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:06,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:06,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:38:06,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:06,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:06,335 INFO L85 PathProgramCache]: Analyzing trace with hash 710531715, now seen corresponding path program 1 times [2024-11-16 09:38:06,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:06,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765746666] [2024-11-16 09:38:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:06,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:06,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:06,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:06,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765746666] [2024-11-16 09:38:06,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765746666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:06,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:06,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:38:06,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766404416] [2024-11-16 09:38:06,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:06,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:38:06,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:06,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:38:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:38:06,572 INFO L87 Difference]: Start difference. First operand 1576 states and 2929 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:06,646 INFO L93 Difference]: Finished difference Result 1658 states and 3053 transitions. [2024-11-16 09:38:06,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:38:06,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-16 09:38:06,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:06,654 INFO L225 Difference]: With dead ends: 1658 [2024-11-16 09:38:06,654 INFO L226 Difference]: Without dead ends: 1615 [2024-11-16 09:38:06,656 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 [2024-11-16 09:38:06,657 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 59 mSDsluCounter, 4618 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 6167 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:06,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 6167 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:06,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-16 09:38:06,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1576. [2024-11-16 09:38:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1574 states have (on average 1.846251588310038) internal successors, (2906), 1575 states have internal predecessors, (2906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2906 transitions. [2024-11-16 09:38:06,699 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2906 transitions. Word has length 24 [2024-11-16 09:38:06,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:06,699 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 2906 transitions. [2024-11-16 09:38:06,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2906 transitions. [2024-11-16 09:38:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-16 09:38:06,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:06,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:06,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:38:06,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:06,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1553013747, now seen corresponding path program 1 times [2024-11-16 09:38:06,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:06,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750493488] [2024-11-16 09:38:06,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:06,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:06,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:06,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750493488] [2024-11-16 09:38:06,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750493488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:06,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:06,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:06,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720138864] [2024-11-16 09:38:06,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:06,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:06,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:06,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:06,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:06,912 INFO L87 Difference]: Start difference. First operand 1576 states and 2906 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:07,087 INFO L93 Difference]: Finished difference Result 1888 states and 3386 transitions. [2024-11-16 09:38:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:38:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-16 09:38:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:07,098 INFO L225 Difference]: With dead ends: 1888 [2024-11-16 09:38:07,098 INFO L226 Difference]: Without dead ends: 1849 [2024-11-16 09:38:07,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:38:07,102 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 6247 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6247 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:07,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6247 Valid, 2362 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:38:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2024-11-16 09:38:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1612. [2024-11-16 09:38:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1610 states have (on average 1.839751552795031) internal successors, (2962), 1611 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2962 transitions. [2024-11-16 09:38:07,143 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2962 transitions. Word has length 46 [2024-11-16 09:38:07,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:07,144 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2962 transitions. [2024-11-16 09:38:07,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2962 transitions. [2024-11-16 09:38:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-16 09:38:07,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:07,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:07,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:38:07,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:07,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash 196801391, now seen corresponding path program 1 times [2024-11-16 09:38:07,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:07,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023246505] [2024-11-16 09:38:07,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:07,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:07,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023246505] [2024-11-16 09:38:07,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023246505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:07,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:07,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853737503] [2024-11-16 09:38:07,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:07,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:07,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:07,408 INFO L87 Difference]: Start difference. First operand 1612 states and 2962 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:07,578 INFO L93 Difference]: Finished difference Result 1690 states and 3080 transitions. [2024-11-16 09:38:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:38:07,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-16 09:38:07,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:07,585 INFO L225 Difference]: With dead ends: 1690 [2024-11-16 09:38:07,585 INFO L226 Difference]: Without dead ends: 1615 [2024-11-16 09:38:07,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:38:07,589 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 5940 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5940 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:07,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5940 Valid, 1692 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:07,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-11-16 09:38:07,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1612. [2024-11-16 09:38:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1610 states have (on average 1.8391304347826087) internal successors, (2961), 1611 states have internal predecessors, (2961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2961 transitions. [2024-11-16 09:38:07,623 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2961 transitions. Word has length 48 [2024-11-16 09:38:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:07,623 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2961 transitions. [2024-11-16 09:38:07,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2961 transitions. [2024-11-16 09:38:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 09:38:07,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:07,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:07,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:38:07,628 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:07,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash -765272266, now seen corresponding path program 1 times [2024-11-16 09:38:07,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:07,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192472994] [2024-11-16 09:38:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:07,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:07,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192472994] [2024-11-16 09:38:07,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192472994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:07,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:07,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:07,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948734123] [2024-11-16 09:38:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:07,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:07,716 INFO L87 Difference]: Start difference. First operand 1612 states and 2961 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:07,748 INFO L93 Difference]: Finished difference Result 1750 states and 3171 transitions. [2024-11-16 09:38:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:07,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-16 09:38:07,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:07,756 INFO L225 Difference]: With dead ends: 1750 [2024-11-16 09:38:07,757 INFO L226 Difference]: Without dead ends: 1675 [2024-11-16 09:38:07,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:07,758 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 1478 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:07,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1591 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-16 09:38:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1672. [2024-11-16 09:38:07,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1670 states have (on average 1.8269461077844311) internal successors, (3051), 1671 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 3051 transitions. [2024-11-16 09:38:07,796 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 3051 transitions. Word has length 49 [2024-11-16 09:38:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:07,797 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 3051 transitions. [2024-11-16 09:38:07,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 3051 transitions. [2024-11-16 09:38:07,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:38:07,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:07,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:07,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:38:07,802 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:07,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1807690319, now seen corresponding path program 1 times [2024-11-16 09:38:07,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:07,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550380411] [2024-11-16 09:38:07,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:07,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:07,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:07,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550380411] [2024-11-16 09:38:07,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550380411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:07,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:07,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:07,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053205034] [2024-11-16 09:38:07,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:07,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:07,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:07,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:07,871 INFO L87 Difference]: Start difference. First operand 1672 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:07,901 INFO L93 Difference]: Finished difference Result 1817 states and 3271 transitions. [2024-11-16 09:38:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:07,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 09:38:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:07,908 INFO L225 Difference]: With dead ends: 1817 [2024-11-16 09:38:07,908 INFO L226 Difference]: Without dead ends: 1742 [2024-11-16 09:38:07,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:07,910 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 1490 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:07,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1635 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2024-11-16 09:38:07,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1739. [2024-11-16 09:38:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1737 states have (on average 1.8140472078295913) internal successors, (3151), 1738 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 3151 transitions. [2024-11-16 09:38:07,944 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 3151 transitions. Word has length 50 [2024-11-16 09:38:07,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:07,944 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 3151 transitions. [2024-11-16 09:38:07,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 3151 transitions. [2024-11-16 09:38:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:38:07,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:07,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:07,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:38:07,945 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:07,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:07,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1485867249, now seen corresponding path program 1 times [2024-11-16 09:38:07,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:07,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662863067] [2024-11-16 09:38:07,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:07,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:08,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:08,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662863067] [2024-11-16 09:38:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662863067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382336554] [2024-11-16 09:38:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:08,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,012 INFO L87 Difference]: Start difference. First operand 1739 states and 3151 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:08,048 INFO L93 Difference]: Finished difference Result 2113 states and 3713 transitions. [2024-11-16 09:38:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:08,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 09:38:08,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:08,059 INFO L225 Difference]: With dead ends: 2113 [2024-11-16 09:38:08,059 INFO L226 Difference]: Without dead ends: 1914 [2024-11-16 09:38:08,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,063 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 1488 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:08,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1641 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:08,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2024-11-16 09:38:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1911. [2024-11-16 09:38:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1909 states have (on average 1.7826086956521738) internal successors, (3403), 1910 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 3403 transitions. [2024-11-16 09:38:08,108 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 3403 transitions. Word has length 50 [2024-11-16 09:38:08,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:08,109 INFO L471 AbstractCegarLoop]: Abstraction has 1911 states and 3403 transitions. [2024-11-16 09:38:08,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 3403 transitions. [2024-11-16 09:38:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:38:08,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:08,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:08,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:38:08,110 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:08,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1471417393, now seen corresponding path program 1 times [2024-11-16 09:38:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151258863] [2024-11-16 09:38:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:08,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151258863] [2024-11-16 09:38:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151258863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:08,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:08,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103554245] [2024-11-16 09:38:08,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:08,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:08,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,193 INFO L87 Difference]: Start difference. First operand 1911 states and 3403 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:08,231 INFO L93 Difference]: Finished difference Result 2605 states and 4427 transitions. [2024-11-16 09:38:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:08,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 09:38:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:08,241 INFO L225 Difference]: With dead ends: 2605 [2024-11-16 09:38:08,241 INFO L226 Difference]: Without dead ends: 2234 [2024-11-16 09:38:08,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,244 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 1486 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:08,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1643 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2024-11-16 09:38:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2231. [2024-11-16 09:38:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2229 states have (on average 1.7312696276357111) internal successors, (3859), 2230 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3859 transitions. [2024-11-16 09:38:08,293 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3859 transitions. Word has length 50 [2024-11-16 09:38:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:08,293 INFO L471 AbstractCegarLoop]: Abstraction has 2231 states and 3859 transitions. [2024-11-16 09:38:08,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3859 transitions. [2024-11-16 09:38:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:38:08,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:08,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:08,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:38:08,295 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:08,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash -731947151, now seen corresponding path program 1 times [2024-11-16 09:38:08,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:08,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69499651] [2024-11-16 09:38:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:08,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69499651] [2024-11-16 09:38:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69499651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:08,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901846444] [2024-11-16 09:38:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:08,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,374 INFO L87 Difference]: Start difference. First operand 2231 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:08,430 INFO L93 Difference]: Finished difference Result 3517 states and 5711 transitions. [2024-11-16 09:38:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 09:38:08,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:08,441 INFO L225 Difference]: With dead ends: 3517 [2024-11-16 09:38:08,441 INFO L226 Difference]: Without dead ends: 2826 [2024-11-16 09:38:08,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:08,444 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 1484 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:08,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1645 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2024-11-16 09:38:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2823. [2024-11-16 09:38:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 2821 states have (on average 1.6572137539879475) internal successors, (4675), 2822 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 4675 transitions. [2024-11-16 09:38:08,516 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 4675 transitions. Word has length 50 [2024-11-16 09:38:08,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:08,517 INFO L471 AbstractCegarLoop]: Abstraction has 2823 states and 4675 transitions. [2024-11-16 09:38:08,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 4675 transitions. [2024-11-16 09:38:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:38:08,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:08,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:38:08,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:38:08,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:08,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1256224206, now seen corresponding path program 1 times [2024-11-16 09:38:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550158030] [2024-11-16 09:38:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:08,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:08,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:08,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550158030] [2024-11-16 09:38:08,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550158030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:08,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:08,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:38:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164863356] [2024-11-16 09:38:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:08,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:38:08,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:08,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:38:08,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:38:08,692 INFO L87 Difference]: Start difference. First operand 2823 states and 4675 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:08,791 INFO L93 Difference]: Finished difference Result 2922 states and 4805 transitions. [2024-11-16 09:38:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:38:08,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 09:38:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:08,802 INFO L225 Difference]: With dead ends: 2922 [2024-11-16 09:38:08,802 INFO L226 Difference]: Without dead ends: 2919 [2024-11-16 09:38:08,803 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 [2024-11-16 09:38:08,804 INFO L432 NwaCegarLoop]: 1527 mSDtfsCounter, 0 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6099 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:08,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6099 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:08,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2024-11-16 09:38:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2919. [2024-11-16 09:38:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2917 states have (on average 1.6328419609187521) internal successors, (4763), 2918 states have internal predecessors, (4763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4763 transitions. [2024-11-16 09:38:08,884 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4763 transitions. Word has length 50 [2024-11-16 09:38:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:08,885 INFO L471 AbstractCegarLoop]: Abstraction has 2919 states and 4763 transitions. [2024-11-16 09:38:08,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4763 transitions. [2024-11-16 09:38:08,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:38:08,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:08,887 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:08,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:38:08,887 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:08,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2040269213, now seen corresponding path program 1 times [2024-11-16 09:38:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:08,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961633010] [2024-11-16 09:38:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:38:09,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:09,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961633010] [2024-11-16 09:38:09,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961633010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:09,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:09,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:09,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621583463] [2024-11-16 09:38:09,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:09,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:09,035 INFO L87 Difference]: Start difference. First operand 2919 states and 4763 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:09,292 INFO L93 Difference]: Finished difference Result 8366 states and 12309 transitions. [2024-11-16 09:38:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:38:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:38:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:09,327 INFO L225 Difference]: With dead ends: 8366 [2024-11-16 09:38:09,327 INFO L226 Difference]: Without dead ends: 7371 [2024-11-16 09:38:09,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:38:09,337 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 4665 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:09,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 3423 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:38:09,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7371 states. [2024-11-16 09:38:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7371 to 4111. [2024-11-16 09:38:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4111 states, 4109 states have (on average 1.556339742029691) internal successors, (6395), 4110 states have internal predecessors, (6395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4111 states to 4111 states and 6395 transitions. [2024-11-16 09:38:09,504 INFO L78 Accepts]: Start accepts. Automaton has 4111 states and 6395 transitions. Word has length 69 [2024-11-16 09:38:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:09,505 INFO L471 AbstractCegarLoop]: Abstraction has 4111 states and 6395 transitions. [2024-11-16 09:38:09,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4111 states and 6395 transitions. [2024-11-16 09:38:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:38:09,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:09,507 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:09,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:38:09,507 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:09,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:09,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1038859485, now seen corresponding path program 1 times [2024-11-16 09:38:09,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:09,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129594989] [2024-11-16 09:38:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:09,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:38:09,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:09,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129594989] [2024-11-16 09:38:09,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129594989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:09,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:09,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:09,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291026963] [2024-11-16 09:38:09,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:09,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:09,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:09,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:09,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:09,672 INFO L87 Difference]: Start difference. First operand 4111 states and 6395 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:09,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:09,926 INFO L93 Difference]: Finished difference Result 9742 states and 14205 transitions. [2024-11-16 09:38:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:38:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:38:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:09,942 INFO L225 Difference]: With dead ends: 9742 [2024-11-16 09:38:09,943 INFO L226 Difference]: Without dead ends: 8363 [2024-11-16 09:38:09,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:38:09,948 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 4669 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:09,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 3380 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:38:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8363 states. [2024-11-16 09:38:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8363 to 5983. [2024-11-16 09:38:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5983 states, 5981 states have (on average 1.497241264002675) internal successors, (8955), 5982 states have internal predecessors, (8955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 8955 transitions. [2024-11-16 09:38:10,126 INFO L78 Accepts]: Start accepts. Automaton has 5983 states and 8955 transitions. Word has length 69 [2024-11-16 09:38:10,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:10,126 INFO L471 AbstractCegarLoop]: Abstraction has 5983 states and 8955 transitions. [2024-11-16 09:38:10,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5983 states and 8955 transitions. [2024-11-16 09:38:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:38:10,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:10,128 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:10,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:38:10,129 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:10,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1024409629, now seen corresponding path program 1 times [2024-11-16 09:38:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:10,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329590135] [2024-11-16 09:38:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:38:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:10,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329590135] [2024-11-16 09:38:10,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329590135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:10,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:10,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:10,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230382214] [2024-11-16 09:38:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:10,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:10,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:10,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:10,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:10,243 INFO L87 Difference]: Start difference. First operand 5983 states and 8955 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:10,565 INFO L93 Difference]: Finished difference Result 11118 states and 16093 transitions. [2024-11-16 09:38:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:38:10,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:38:10,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:10,583 INFO L225 Difference]: With dead ends: 11118 [2024-11-16 09:38:10,583 INFO L226 Difference]: Without dead ends: 9739 [2024-11-16 09:38:10,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:38:10,589 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 4693 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:10,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 3364 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:38:10,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9739 states. [2024-11-16 09:38:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9739 to 7359. [2024-11-16 09:38:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 7357 states have (on average 1.4738344433872503) internal successors, (10843), 7358 states have internal predecessors, (10843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 10843 transitions. [2024-11-16 09:38:10,798 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 10843 transitions. Word has length 69 [2024-11-16 09:38:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:10,798 INFO L471 AbstractCegarLoop]: Abstraction has 7359 states and 10843 transitions. [2024-11-16 09:38:10,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 10843 transitions. [2024-11-16 09:38:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:38:10,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:10,801 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:10,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:38:10,802 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:10,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1178954915, now seen corresponding path program 1 times [2024-11-16 09:38:10,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:10,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26276655] [2024-11-16 09:38:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:10,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:38:10,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26276655] [2024-11-16 09:38:10,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26276655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:10,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:10,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:38:10,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381742407] [2024-11-16 09:38:10,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:10,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:38:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:38:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:38:10,925 INFO L87 Difference]: Start difference. First operand 7359 states and 10843 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:11,188 INFO L93 Difference]: Finished difference Result 12494 states and 17981 transitions. [2024-11-16 09:38:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:38:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:38:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:11,209 INFO L225 Difference]: With dead ends: 12494 [2024-11-16 09:38:11,210 INFO L226 Difference]: Without dead ends: 11115 [2024-11-16 09:38:11,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:38:11,216 INFO L432 NwaCegarLoop]: 1584 mSDtfsCounter, 4681 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:11,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 3404 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:38:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2024-11-16 09:38:11,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 8735. [2024-11-16 09:38:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8733 states have (on average 1.4578037329669071) internal successors, (12731), 8734 states have internal predecessors, (12731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 12731 transitions. [2024-11-16 09:38:11,470 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 12731 transitions. Word has length 69 [2024-11-16 09:38:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:11,470 INFO L471 AbstractCegarLoop]: Abstraction has 8735 states and 12731 transitions. [2024-11-16 09:38:11,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 12731 transitions. [2024-11-16 09:38:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:38:11,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:11,473 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:11,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:38:11,473 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:11,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:11,474 INFO L85 PathProgramCache]: Analyzing trace with hash 188019967, now seen corresponding path program 1 times [2024-11-16 09:38:11,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:11,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476000554] [2024-11-16 09:38:11,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:11,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:11,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:11,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476000554] [2024-11-16 09:38:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476000554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:11,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:11,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:11,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267839509] [2024-11-16 09:38:11,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:11,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:11,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:11,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:11,582 INFO L87 Difference]: Start difference. First operand 8735 states and 12731 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:11,774 INFO L93 Difference]: Finished difference Result 15933 states and 22615 transitions. [2024-11-16 09:38:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:11,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:38:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:11,790 INFO L225 Difference]: With dead ends: 15933 [2024-11-16 09:38:11,790 INFO L226 Difference]: Without dead ends: 8738 [2024-11-16 09:38:11,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:11,801 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:11,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3076 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2024-11-16 09:38:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 8735. [2024-11-16 09:38:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8733 states have (on average 1.4436047177373181) internal successors, (12607), 8734 states have internal predecessors, (12607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 12607 transitions. [2024-11-16 09:38:12,013 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 12607 transitions. Word has length 71 [2024-11-16 09:38:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:12,013 INFO L471 AbstractCegarLoop]: Abstraction has 8735 states and 12607 transitions. [2024-11-16 09:38:12,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 12607 transitions. [2024-11-16 09:38:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:38:12,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:12,015 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:12,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:38:12,015 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash -94054337, now seen corresponding path program 1 times [2024-11-16 09:38:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:12,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710340055] [2024-11-16 09:38:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:12,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:12,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710340055] [2024-11-16 09:38:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710340055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:12,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:12,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:12,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980764118] [2024-11-16 09:38:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:12,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,113 INFO L87 Difference]: Start difference. First operand 8735 states and 12607 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:12,192 INFO L93 Difference]: Finished difference Result 11488 states and 16371 transitions. [2024-11-16 09:38:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:12,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:38:12,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:12,201 INFO L225 Difference]: With dead ends: 11488 [2024-11-16 09:38:12,202 INFO L226 Difference]: Without dead ends: 4293 [2024-11-16 09:38:12,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,210 INFO L432 NwaCegarLoop]: 1556 mSDtfsCounter, 32 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:12,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3073 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4293 states. [2024-11-16 09:38:12,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4293 to 4283. [2024-11-16 09:38:12,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 1.5321186638635833) internal successors, (6559), 4282 states have internal predecessors, (6559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 6559 transitions. [2024-11-16 09:38:12,300 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 6559 transitions. Word has length 71 [2024-11-16 09:38:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:12,301 INFO L471 AbstractCegarLoop]: Abstraction has 4283 states and 6559 transitions. [2024-11-16 09:38:12,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 6559 transitions. [2024-11-16 09:38:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:38:12,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:12,302 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:12,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:38:12,303 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:12,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:12,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1636853377, now seen corresponding path program 1 times [2024-11-16 09:38:12,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:12,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888104502] [2024-11-16 09:38:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:12,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:12,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:12,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888104502] [2024-11-16 09:38:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888104502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:12,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:12,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192049378] [2024-11-16 09:38:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:12,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,395 INFO L87 Difference]: Start difference. First operand 4283 states and 6559 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:12,440 INFO L93 Difference]: Finished difference Result 5653 states and 8411 transitions. [2024-11-16 09:38:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:12,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-16 09:38:12,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:12,446 INFO L225 Difference]: With dead ends: 5653 [2024-11-16 09:38:12,446 INFO L226 Difference]: Without dead ends: 2922 [2024-11-16 09:38:12,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,451 INFO L432 NwaCegarLoop]: 1550 mSDtfsCounter, 30 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:12,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3052 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-11-16 09:38:12,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2919. [2024-11-16 09:38:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2917 states have (on average 1.6074734316078163) internal successors, (4689), 2918 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4689 transitions. [2024-11-16 09:38:12,505 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4689 transitions. Word has length 73 [2024-11-16 09:38:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:12,506 INFO L471 AbstractCegarLoop]: Abstraction has 2919 states and 4689 transitions. [2024-11-16 09:38:12,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4689 transitions. [2024-11-16 09:38:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 09:38:12,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:12,507 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:12,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:38:12,508 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:12,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1090931768, now seen corresponding path program 1 times [2024-11-16 09:38:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956353698] [2024-11-16 09:38:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956353698] [2024-11-16 09:38:12,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956353698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:38:12,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:38:12,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:38:12,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108426682] [2024-11-16 09:38:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:38:12,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:38:12,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:38:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,592 INFO L87 Difference]: Start difference. First operand 2919 states and 4689 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:12,624 INFO L93 Difference]: Finished difference Result 3607 states and 5606 transitions. [2024-11-16 09:38:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:38:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-16 09:38:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:12,629 INFO L225 Difference]: With dead ends: 3607 [2024-11-16 09:38:12,629 INFO L226 Difference]: Without dead ends: 2240 [2024-11-16 09:38:12,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:38:12,632 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 27 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:12,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3037 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:38:12,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-16 09:38:12,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2237. [2024-11-16 09:38:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2235 states have (on average 1.6845637583892616) internal successors, (3765), 2236 states have internal predecessors, (3765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3765 transitions. [2024-11-16 09:38:12,710 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3765 transitions. Word has length 75 [2024-11-16 09:38:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:12,710 INFO L471 AbstractCegarLoop]: Abstraction has 2237 states and 3765 transitions. [2024-11-16 09:38:12,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3765 transitions. [2024-11-16 09:38:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 09:38:12,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:12,712 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:12,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:38:12,712 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:12,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:12,712 INFO L85 PathProgramCache]: Analyzing trace with hash -86744529, now seen corresponding path program 1 times [2024-11-16 09:38:12,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:12,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608767380] [2024-11-16 09:38:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:12,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:13,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:13,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608767380] [2024-11-16 09:38:13,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608767380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:38:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675625448] [2024-11-16 09:38:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:13,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:13,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:38:13,119 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) [2024-11-16 09:38:13,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:38:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:13,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:38:13,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:38:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:13,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:38:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:14,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675625448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:38:14,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:38:14,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:38:14,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597673848] [2024-11-16 09:38:14,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:38:14,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:38:14,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:14,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:38:14,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:38:14,879 INFO L87 Difference]: Start difference. First operand 2237 states and 3765 transitions. Second operand has 25 states, 25 states have (on average 8.52) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:16,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:16,531 INFO L93 Difference]: Finished difference Result 5206 states and 7695 transitions. [2024-11-16 09:38:16,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:38:16,531 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.52) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 09:38:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:16,540 INFO L225 Difference]: With dead ends: 5206 [2024-11-16 09:38:16,541 INFO L226 Difference]: Without dead ends: 4521 [2024-11-16 09:38:16,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2024-11-16 09:38:16,545 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 21831 mSDsluCounter, 8092 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21831 SdHoareTripleChecker+Valid, 9597 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:16,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21831 Valid, 9597 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:38:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4521 states. [2024-11-16 09:38:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4521 to 4459. [2024-11-16 09:38:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4459 states, 4457 states have (on average 1.481489791339466) internal successors, (6603), 4458 states have internal predecessors, (6603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:16,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 6603 transitions. [2024-11-16 09:38:16,688 INFO L78 Accepts]: Start accepts. Automaton has 4459 states and 6603 transitions. Word has length 77 [2024-11-16 09:38:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:16,688 INFO L471 AbstractCegarLoop]: Abstraction has 4459 states and 6603 transitions. [2024-11-16 09:38:16,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.52) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4459 states and 6603 transitions. [2024-11-16 09:38:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 09:38:16,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:16,692 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:16,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:38:16,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:16,893 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:16,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1510630993, now seen corresponding path program 1 times [2024-11-16 09:38:16,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:16,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481818449] [2024-11-16 09:38:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:17,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:17,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481818449] [2024-11-16 09:38:17,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481818449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:38:17,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872475579] [2024-11-16 09:38:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:17,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:17,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:38:17,452 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) [2024-11-16 09:38:17,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:38:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:17,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:38:17,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:38:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:18,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:38:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:18,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872475579] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:38:18,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:38:18,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:38:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522022873] [2024-11-16 09:38:18,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:38:18,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:38:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:38:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:38:18,826 INFO L87 Difference]: Start difference. First operand 4459 states and 6603 transitions. Second operand has 25 states, 25 states have (on average 7.56) internal successors, (189), 24 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:20,548 INFO L93 Difference]: Finished difference Result 16624 states and 22369 transitions. [2024-11-16 09:38:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:38:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.56) internal successors, (189), 24 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 09:38:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:20,575 INFO L225 Difference]: With dead ends: 16624 [2024-11-16 09:38:20,575 INFO L226 Difference]: Without dead ends: 13717 [2024-11-16 09:38:20,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=518, Invalid=2032, Unknown=0, NotChecked=0, Total=2550 [2024-11-16 09:38:20,585 INFO L432 NwaCegarLoop]: 1522 mSDtfsCounter, 21325 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21325 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:20,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21325 Valid, 6873 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:38:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13717 states. [2024-11-16 09:38:20,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 13523. [2024-11-16 09:38:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13523 states, 13521 states have (on average 1.3311885215590562) internal successors, (17999), 13522 states have internal predecessors, (17999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13523 states to 13523 states and 17999 transitions. [2024-11-16 09:38:20,948 INFO L78 Accepts]: Start accepts. Automaton has 13523 states and 17999 transitions. Word has length 77 [2024-11-16 09:38:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:20,948 INFO L471 AbstractCegarLoop]: Abstraction has 13523 states and 17999 transitions. [2024-11-16 09:38:20,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.56) internal successors, (189), 24 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 13523 states and 17999 transitions. [2024-11-16 09:38:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 09:38:20,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:20,951 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:20,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:38:21,155 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,SelfDestructingSolverStorable19 [2024-11-16 09:38:21,156 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1994964022, now seen corresponding path program 1 times [2024-11-16 09:38:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287614125] [2024-11-16 09:38:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:21,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287614125] [2024-11-16 09:38:21,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287614125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:38:21,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896380630] [2024-11-16 09:38:21,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:21,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:21,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:38:21,910 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) [2024-11-16 09:38:21,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:38:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:22,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-16 09:38:22,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:38:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:25,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:38:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896380630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:38:31,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:38:31,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24, 24] total 58 [2024-11-16 09:38:31,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084550401] [2024-11-16 09:38:31,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:38:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-16 09:38:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:31,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-16 09:38:31,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=2797, Unknown=0, NotChecked=0, Total=3306 [2024-11-16 09:38:31,944 INFO L87 Difference]: Start difference. First operand 13523 states and 17999 transitions. Second operand has 58 states, 58 states have (on average 3.5344827586206895) internal successors, (205), 58 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:38:48,501 INFO L93 Difference]: Finished difference Result 23557 states and 30768 transitions. [2024-11-16 09:38:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-16 09:38:48,502 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.5344827586206895) internal successors, (205), 58 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-16 09:38:48,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:38:48,533 INFO L225 Difference]: With dead ends: 23557 [2024-11-16 09:38:48,533 INFO L226 Difference]: Without dead ends: 18146 [2024-11-16 09:38:48,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5919 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=4636, Invalid=15104, Unknown=0, NotChecked=0, Total=19740 [2024-11-16 09:38:48,550 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 21951 mSDsluCounter, 23622 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21951 SdHoareTripleChecker+Valid, 25180 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:38:48,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21951 Valid, 25180 Invalid, 2763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 09:38:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18146 states. [2024-11-16 09:38:49,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18146 to 14214. [2024-11-16 09:38:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14214 states, 14212 states have (on average 1.325358851674641) internal successors, (18836), 14213 states have internal predecessors, (18836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14214 states to 14214 states and 18836 transitions. [2024-11-16 09:38:49,128 INFO L78 Accepts]: Start accepts. Automaton has 14214 states and 18836 transitions. Word has length 79 [2024-11-16 09:38:49,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:38:49,128 INFO L471 AbstractCegarLoop]: Abstraction has 14214 states and 18836 transitions. [2024-11-16 09:38:49,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.5344827586206895) internal successors, (205), 58 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:38:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14214 states and 18836 transitions. [2024-11-16 09:38:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 09:38:49,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:38:49,131 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:38:49,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 09:38:49,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:49,332 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:38:49,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:38:49,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2050000682, now seen corresponding path program 1 times [2024-11-16 09:38:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:38:49,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286897166] [2024-11-16 09:38:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:49,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:38:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:38:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286897166] [2024-11-16 09:38:50,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286897166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:38:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631594103] [2024-11-16 09:38:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:38:50,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:38:50,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:38:50,167 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) [2024-11-16 09:38:50,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:38:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:38:50,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-16 09:38:50,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:38:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:53,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:38:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:38:57,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631594103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:38:57,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:38:57,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24, 22] total 55 [2024-11-16 09:38:57,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325185608] [2024-11-16 09:38:57,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:38:57,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-16 09:38:57,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:38:57,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-16 09:38:57,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2619, Unknown=0, NotChecked=0, Total=2970 [2024-11-16 09:38:57,277 INFO L87 Difference]: Start difference. First operand 14214 states and 18836 transitions. Second operand has 55 states, 55 states have (on average 3.8727272727272726) internal successors, (213), 55 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)