./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.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.6.ufo.UNBOUNDED.pals+Problem12_label03.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 e1d9709d5a0621fd4bc0599bfe40ccbc8c215c029862756c658cfcd57bd9db9f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:45:21,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:45:21,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:45:21,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:45:21,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:45:21,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:45:21,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:45:21,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:45:21,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:45:21,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:45:21,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:45:21,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:45:21,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:45:21,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:45:21,724 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:45:21,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:45:21,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:45:21,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:45:21,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:45:21,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:45:21,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:45:21,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:45:21,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:45:21,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:45:21,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:45:21,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:45:21,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:45:21,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:45:21,728 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:45:21,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:45:21,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:45:21,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:45:21,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:21,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:45:21,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:45:21,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:45:21,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1d9709d5a0621fd4bc0599bfe40ccbc8c215c029862756c658cfcd57bd9db9f [2024-11-16 09:45:21,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:45:21,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:45:21,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:45:21,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:45:21,938 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:45:21,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:45:23,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:45:23,514 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:45:23,515 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:45:23,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93efef230/24aedaf242654521af3d54440953aa8e/FLAG7db57e862 [2024-11-16 09:45:23,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93efef230/24aedaf242654521af3d54440953aa8e [2024-11-16 09:45:23,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:45:23,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:45:23,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:23,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:45:23,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:45:23,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:23" (1/1) ... [2024-11-16 09:45:23,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50228c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:23, skipping insertion in model container [2024-11-16 09:45:23,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:23" (1/1) ... [2024-11-16 09:45:23,696 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:45:23,944 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.6.ufo.UNBOUNDED.pals+Problem12_label03.c[15510,15523] [2024-11-16 09:45:23,986 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.6.ufo.UNBOUNDED.pals+Problem12_label03.c[17847,17860] [2024-11-16 09:45:24,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:24,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:45:24,492 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.6.ufo.UNBOUNDED.pals+Problem12_label03.c[15510,15523] [2024-11-16 09:45:24,495 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.6.ufo.UNBOUNDED.pals+Problem12_label03.c[17847,17860] [2024-11-16 09:45:24,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:24,769 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:45:24,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24 WrapperNode [2024-11-16 09:45:24,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:24,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:24,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:45:24,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:45:24,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:24,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,036 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-11-16 09:45:25,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:25,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:45:25,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:45:25,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:45:25,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,220 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 09:45:25,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,333 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:45:25,414 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:45:25,414 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:45:25,414 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:45:25,415 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (1/1) ... [2024-11-16 09:45:25,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:25,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:25,438 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 09:45:25,440 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 09:45:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:45:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:45:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:45:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:45:25,560 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:45:25,562 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:45:28,667 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3685: havoc calculate_output2_#t~ret42#1; [2024-11-16 09:45:28,668 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5175: havoc calculate_output3_#t~ret43#1; [2024-11-16 09:45:28,668 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2206: havoc calculate_output_#t~ret41#1; [2024-11-16 09:45:28,791 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:45:28,791 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:45:28,823 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:45:28,823 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:45:28,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:28 BoogieIcfgContainer [2024-11-16 09:45:28,824 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:45:28,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:45:28,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:45:28,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:45:28,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:45:23" (1/3) ... [2024-11-16 09:45:28,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ade7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:28, skipping insertion in model container [2024-11-16 09:45:28,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:24" (2/3) ... [2024-11-16 09:45:28,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ade7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:28, skipping insertion in model container [2024-11-16 09:45:28,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:28" (3/3) ... [2024-11-16 09:45:28,832 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:45:28,845 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:45:28,846 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:45:28,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:45:28,927 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;@6534cdcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:45:28,928 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:45:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 0 states have call successors, (0), 0 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 09:45:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-16 09:45:28,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:28,942 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] [2024-11-16 09:45:28,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 442983107, now seen corresponding path program 1 times [2024-11-16 09:45:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:28,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647892382] [2024-11-16 09:45:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:28,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:29,324 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 09:45:29,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:29,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647892382] [2024-11-16 09:45:29,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647892382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:29,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:29,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:45:29,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016972961] [2024-11-16 09:45:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:29,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:29,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:29,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:29,376 INFO L87 Difference]: Start difference. First operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 0 states have call successors, (0), 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 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:32,205 INFO L93 Difference]: Finished difference Result 2552 states and 4901 transitions. [2024-11-16 09:45:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-16 09:45:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:32,222 INFO L225 Difference]: With dead ends: 2552 [2024-11-16 09:45:32,222 INFO L226 Difference]: Without dead ends: 1607 [2024-11-16 09:45:32,227 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 09:45:32,229 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1047 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:32,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 331 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 09:45:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-16 09:45:32,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2024-11-16 09:45:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1605 states have (on average 1.838006230529595) internal successors, (2950), 1606 states have internal predecessors, (2950), 0 states have call successors, (0), 0 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 09:45:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2950 transitions. [2024-11-16 09:45:32,308 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2950 transitions. Word has length 22 [2024-11-16 09:45:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:32,308 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2950 transitions. [2024-11-16 09:45:32,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2950 transitions. [2024-11-16 09:45:32,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:45:32,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:32,310 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] [2024-11-16 09:45:32,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:45:32,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:32,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1450179885, now seen corresponding path program 1 times [2024-11-16 09:45:32,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:32,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571150331] [2024-11-16 09:45:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:32,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,463 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 09:45:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571150331] [2024-11-16 09:45:32,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571150331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:45:32,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532404498] [2024-11-16 09:45:32,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:45:32,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:45:32,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:32,466 INFO L87 Difference]: Start difference. First operand 1607 states and 2950 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:32,531 INFO L93 Difference]: Finished difference Result 1664 states and 3037 transitions. [2024-11-16 09:45:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:45:32,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-16 09:45:32,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:32,536 INFO L225 Difference]: With dead ends: 1664 [2024-11-16 09:45:32,536 INFO L226 Difference]: Without dead ends: 1607 [2024-11-16 09:45:32,537 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 09:45:32,538 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 0 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:32,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6387 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-16 09:45:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2024-11-16 09:45:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1605 states have (on average 1.8130841121495327) internal successors, (2910), 1606 states have internal predecessors, (2910), 0 states have call successors, (0), 0 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 09:45:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2910 transitions. [2024-11-16 09:45:32,559 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2910 transitions. Word has length 28 [2024-11-16 09:45:32,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:32,560 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2910 transitions. [2024-11-16 09:45:32,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2910 transitions. [2024-11-16 09:45:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:45:32,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:32,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:32,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:45:32,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:32,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:32,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1102156321, now seen corresponding path program 1 times [2024-11-16 09:45:32,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:32,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096604130] [2024-11-16 09:45:32,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:32,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,729 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 09:45:32,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096604130] [2024-11-16 09:45:32,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096604130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276293770] [2024-11-16 09:45:32,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:32,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:32,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:32,734 INFO L87 Difference]: Start difference. First operand 1607 states and 2910 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 09:45:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:32,959 INFO L93 Difference]: Finished difference Result 2243 states and 3906 transitions. [2024-11-16 09:45:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:45:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 09:45:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:32,966 INFO L225 Difference]: With dead ends: 2243 [2024-11-16 09:45:32,967 INFO L226 Difference]: Without dead ends: 2190 [2024-11-16 09:45:32,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:45:32,968 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 9908 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9908 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:32,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9908 Valid, 3150 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2024-11-16 09:45:32,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1657. [2024-11-16 09:45:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1655 states have (on average 1.8060422960725075) internal successors, (2989), 1656 states have internal predecessors, (2989), 0 states have call successors, (0), 0 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 09:45:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2989 transitions. [2024-11-16 09:45:32,996 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2989 transitions. Word has length 67 [2024-11-16 09:45:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:32,996 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2989 transitions. [2024-11-16 09:45:32,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 09:45:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2989 transitions. [2024-11-16 09:45:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:45:32,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:32,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:32,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:45:32,999 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash 604662915, now seen corresponding path program 1 times [2024-11-16 09:45:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:33,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140014515] [2024-11-16 09:45:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:33,322 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 09:45:33,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:33,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140014515] [2024-11-16 09:45:33,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140014515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:33,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:33,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:33,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077003263] [2024-11-16 09:45:33,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:33,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:33,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:33,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:33,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:33,326 INFO L87 Difference]: Start difference. First operand 1657 states and 2989 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:33,550 INFO L93 Difference]: Finished difference Result 1763 states and 3153 transitions. [2024-11-16 09:45:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:33,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:45:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:33,555 INFO L225 Difference]: With dead ends: 1763 [2024-11-16 09:45:33,556 INFO L226 Difference]: Without dead ends: 1660 [2024-11-16 09:45:33,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:45:33,557 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 9034 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9034 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:33,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9034 Valid, 1960 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:33,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-16 09:45:33,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1657. [2024-11-16 09:45:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1655 states have (on average 1.8054380664652567) internal successors, (2988), 1656 states have internal predecessors, (2988), 0 states have call successors, (0), 0 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 09:45:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2988 transitions. [2024-11-16 09:45:33,587 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2988 transitions. Word has length 69 [2024-11-16 09:45:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:33,587 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2988 transitions. [2024-11-16 09:45:33,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2988 transitions. [2024-11-16 09:45:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:45:33,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:33,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:33,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:45:33,589 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:33,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1006466910, now seen corresponding path program 1 times [2024-11-16 09:45:33,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:33,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784339293] [2024-11-16 09:45:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:33,699 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 09:45:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:33,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784339293] [2024-11-16 09:45:33,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784339293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:33,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:33,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:33,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375258533] [2024-11-16 09:45:33,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:33,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:33,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:33,703 INFO L87 Difference]: Start difference. First operand 1657 states and 2988 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:33,738 INFO L93 Difference]: Finished difference Result 1851 states and 3290 transitions. [2024-11-16 09:45:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:33,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-16 09:45:33,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:33,744 INFO L225 Difference]: With dead ends: 1851 [2024-11-16 09:45:33,745 INFO L226 Difference]: Without dead ends: 1748 [2024-11-16 09:45:33,746 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 09:45:33,747 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 1496 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:33,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-11-16 09:45:33,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1743. [2024-11-16 09:45:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1741 states have (on average 1.7920735209649628) internal successors, (3120), 1742 states have internal predecessors, (3120), 0 states have call successors, (0), 0 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 09:45:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 3120 transitions. [2024-11-16 09:45:33,787 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 3120 transitions. Word has length 70 [2024-11-16 09:45:33,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:33,789 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 3120 transitions. [2024-11-16 09:45:33,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 3120 transitions. [2024-11-16 09:45:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:33,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:33,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:33,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:45:33,791 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:33,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash -694789691, now seen corresponding path program 1 times [2024-11-16 09:45:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:33,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35342452] [2024-11-16 09:45:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:33,861 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 09:45:33,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:33,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35342452] [2024-11-16 09:45:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35342452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:33,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348604875] [2024-11-16 09:45:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:33,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:33,864 INFO L87 Difference]: Start difference. First operand 1743 states and 3120 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 09:45:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:33,901 INFO L93 Difference]: Finished difference Result 2105 states and 3678 transitions. [2024-11-16 09:45:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:33,903 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 09:45:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:33,910 INFO L225 Difference]: With dead ends: 2105 [2024-11-16 09:45:33,911 INFO L226 Difference]: Without dead ends: 1916 [2024-11-16 09:45:33,911 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 09:45:33,915 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1509 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1711 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 09:45:33,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2024-11-16 09:45:33,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1913. [2024-11-16 09:45:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1911 states have (on average 1.7681841967556253) internal successors, (3379), 1912 states have internal predecessors, (3379), 0 states have call successors, (0), 0 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 09:45:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 3379 transitions. [2024-11-16 09:45:33,957 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 3379 transitions. Word has length 71 [2024-11-16 09:45:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:33,957 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 3379 transitions. [2024-11-16 09:45:33,957 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 09:45:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 3379 transitions. [2024-11-16 09:45:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:33,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:33,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:33,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:45:33,959 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:33,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1696199419, now seen corresponding path program 1 times [2024-11-16 09:45:33,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:33,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915780674] [2024-11-16 09:45:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,009 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 09:45:34,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:34,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915780674] [2024-11-16 09:45:34,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915780674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:34,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:34,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515028155] [2024-11-16 09:45:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:34,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:34,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:34,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:34,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:34,011 INFO L87 Difference]: Start difference. First operand 1913 states and 3379 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 09:45:34,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:34,036 INFO L93 Difference]: Finished difference Result 2599 states and 4427 transitions. [2024-11-16 09:45:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:34,036 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 09:45:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:34,042 INFO L225 Difference]: With dead ends: 2599 [2024-11-16 09:45:34,042 INFO L226 Difference]: Without dead ends: 2240 [2024-11-16 09:45:34,043 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 09:45:34,044 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1507 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1713 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 09:45:34,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1713 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-16 09:45:34,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2237. [2024-11-16 09:45:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2235 states have (on average 1.7293064876957494) internal successors, (3865), 2236 states have internal predecessors, (3865), 0 states have call successors, (0), 0 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 09:45:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3865 transitions. [2024-11-16 09:45:34,078 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3865 transitions. Word has length 71 [2024-11-16 09:45:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:34,078 INFO L471 AbstractCegarLoop]: Abstraction has 2237 states and 3865 transitions. [2024-11-16 09:45:34,078 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 09:45:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3865 transitions. [2024-11-16 09:45:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:34,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:34,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:34,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:45:34,079 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:34,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1710649275, now seen corresponding path program 1 times [2024-11-16 09:45:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:34,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338403924] [2024-11-16 09:45:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:34,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,122 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 09:45:34,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:34,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338403924] [2024-11-16 09:45:34,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338403924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:34,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:34,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:34,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749522834] [2024-11-16 09:45:34,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:34,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:34,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:34,124 INFO L87 Difference]: Start difference. First operand 2237 states and 3865 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 09:45:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:34,156 INFO L93 Difference]: Finished difference Result 3539 states and 5829 transitions. [2024-11-16 09:45:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:34,157 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 09:45:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:34,164 INFO L225 Difference]: With dead ends: 3539 [2024-11-16 09:45:34,164 INFO L226 Difference]: Without dead ends: 2856 [2024-11-16 09:45:34,165 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 09:45:34,166 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 1505 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1715 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 09:45:34,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1715 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2024-11-16 09:45:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2853. [2024-11-16 09:45:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2851 states have (on average 1.6741494212556998) internal successors, (4773), 2852 states have internal predecessors, (4773), 0 states have call successors, (0), 0 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 09:45:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4773 transitions. [2024-11-16 09:45:34,208 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4773 transitions. Word has length 71 [2024-11-16 09:45:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:34,209 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 4773 transitions. [2024-11-16 09:45:34,209 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 09:45:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4773 transitions. [2024-11-16 09:45:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:34,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:34,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:34,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:45:34,211 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:34,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash 380953477, now seen corresponding path program 1 times [2024-11-16 09:45:34,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:34,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572740128] [2024-11-16 09:45:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:34,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,264 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 09:45:34,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:34,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572740128] [2024-11-16 09:45:34,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572740128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:34,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:34,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129255006] [2024-11-16 09:45:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:34,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:34,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:34,266 INFO L87 Difference]: Start difference. First operand 2853 states and 4773 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 09:45:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:34,319 INFO L93 Difference]: Finished difference Result 5323 states and 8441 transitions. [2024-11-16 09:45:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:34,320 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 09:45:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:34,332 INFO L225 Difference]: With dead ends: 5323 [2024-11-16 09:45:34,333 INFO L226 Difference]: Without dead ends: 4024 [2024-11-16 09:45:34,335 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 09:45:34,336 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 1503 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1717 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 09:45:34,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:34,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2024-11-16 09:45:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 4021. [2024-11-16 09:45:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 1.607613834287136) internal successors, (6461), 4020 states have internal predecessors, (6461), 0 states have call successors, (0), 0 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 09:45:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 6461 transitions. [2024-11-16 09:45:34,416 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 6461 transitions. Word has length 71 [2024-11-16 09:45:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:34,417 INFO L471 AbstractCegarLoop]: Abstraction has 4021 states and 6461 transitions. [2024-11-16 09:45:34,417 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 09:45:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 6461 transitions. [2024-11-16 09:45:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:34,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:34,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:34,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:45:34,418 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:34,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash -143323578, now seen corresponding path program 1 times [2024-11-16 09:45:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:34,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946535739] [2024-11-16 09:45:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,605 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 09:45:34,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946535739] [2024-11-16 09:45:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946535739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:34,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:34,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:34,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430560721] [2024-11-16 09:45:34,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:34,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:34,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:34,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:34,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:34,607 INFO L87 Difference]: Start difference. First operand 4021 states and 6461 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 09:45:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:34,677 INFO L93 Difference]: Finished difference Result 4120 states and 6591 transitions. [2024-11-16 09:45:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 09:45:34,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:34,688 INFO L225 Difference]: With dead ends: 4120 [2024-11-16 09:45:34,688 INFO L226 Difference]: Without dead ends: 4117 [2024-11-16 09:45:34,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:34,693 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 0 mSDsluCounter, 9371 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10935 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:34,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10935 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2024-11-16 09:45:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4117. [2024-11-16 09:45:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 4115 states have (on average 1.58955042527339) internal successors, (6541), 4116 states have internal predecessors, (6541), 0 states have call successors, (0), 0 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 09:45:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 6541 transitions. [2024-11-16 09:45:34,761 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 6541 transitions. Word has length 71 [2024-11-16 09:45:34,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:34,761 INFO L471 AbstractCegarLoop]: Abstraction has 4117 states and 6541 transitions. [2024-11-16 09:45:34,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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 09:45:34,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 6541 transitions. [2024-11-16 09:45:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:34,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:34,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:34,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:45:34,762 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:34,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:34,763 INFO L85 PathProgramCache]: Analyzing trace with hash -412715387, now seen corresponding path program 1 times [2024-11-16 09:45:34,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:34,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286912632] [2024-11-16 09:45:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:34,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,800 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 09:45:34,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:34,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286912632] [2024-11-16 09:45:34,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286912632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:34,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:34,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730400436] [2024-11-16 09:45:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:34,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:34,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:34,802 INFO L87 Difference]: Start difference. First operand 4117 states and 6541 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 09:45:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:34,874 INFO L93 Difference]: Finished difference Result 8987 states and 13521 transitions. [2024-11-16 09:45:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:34,874 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 09:45:34,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:34,884 INFO L225 Difference]: With dead ends: 8987 [2024-11-16 09:45:34,884 INFO L226 Difference]: Without dead ends: 6424 [2024-11-16 09:45:34,888 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 09:45:34,889 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 1511 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1717 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 09:45:34,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2024-11-16 09:45:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 6421. [2024-11-16 09:45:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6421 states, 6419 states have (on average 1.5175260944072286) internal successors, (9741), 6420 states have internal predecessors, (9741), 0 states have call successors, (0), 0 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 09:45:35,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6421 states to 6421 states and 9741 transitions. [2024-11-16 09:45:35,010 INFO L78 Accepts]: Start accepts. Automaton has 6421 states and 9741 transitions. Word has length 71 [2024-11-16 09:45:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:35,010 INFO L471 AbstractCegarLoop]: Abstraction has 6421 states and 9741 transitions. [2024-11-16 09:45:35,010 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 09:45:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 6421 states and 9741 transitions. [2024-11-16 09:45:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:45:35,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:35,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:35,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:45:35,016 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:35,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1728012283, now seen corresponding path program 1 times [2024-11-16 09:45:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:35,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926714227] [2024-11-16 09:45:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:35,053 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 09:45:35,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926714227] [2024-11-16 09:45:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926714227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:35,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375587764] [2024-11-16 09:45:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:35,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:35,056 INFO L87 Difference]: Start difference. First operand 6421 states and 9741 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 09:45:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:35,143 INFO L93 Difference]: Finished difference Result 11551 states and 17110 transitions. [2024-11-16 09:45:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:35,144 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 09:45:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:35,160 INFO L225 Difference]: With dead ends: 11551 [2024-11-16 09:45:35,161 INFO L226 Difference]: Without dead ends: 8795 [2024-11-16 09:45:35,167 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 09:45:35,167 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 1510 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1718 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 09:45:35,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-11-16 09:45:35,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8792. [2024-11-16 09:45:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8792 states, 8790 states have (on average 1.483503981797497) internal successors, (13040), 8791 states have internal predecessors, (13040), 0 states have call successors, (0), 0 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 09:45:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8792 states to 8792 states and 13040 transitions. [2024-11-16 09:45:35,351 INFO L78 Accepts]: Start accepts. Automaton has 8792 states and 13040 transitions. Word has length 73 [2024-11-16 09:45:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:35,351 INFO L471 AbstractCegarLoop]: Abstraction has 8792 states and 13040 transitions. [2024-11-16 09:45:35,351 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 09:45:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8792 states and 13040 transitions. [2024-11-16 09:45:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:45:35,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:35,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:35,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:45:35,353 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:35,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash -125544269, now seen corresponding path program 1 times [2024-11-16 09:45:35,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:35,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956171611] [2024-11-16 09:45:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:35,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:35,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956171611] [2024-11-16 09:45:35,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956171611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:35,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:35,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495740411] [2024-11-16 09:45:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:35,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:45:35,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:35,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:45:35,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:45:35,465 INFO L87 Difference]: Start difference. First operand 8792 states and 13040 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:39,586 INFO L93 Difference]: Finished difference Result 12555 states and 19936 transitions. [2024-11-16 09:45:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:45:39,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 09:45:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:39,600 INFO L225 Difference]: With dead ends: 12555 [2024-11-16 09:45:39,600 INFO L226 Difference]: Without dead ends: 11048 [2024-11-16 09:45:39,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:39,603 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 2435 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:39,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 847 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-16 09:45:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11048 states. [2024-11-16 09:45:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11048 to 11048. [2024-11-16 09:45:39,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11048 states, 11046 states have (on average 1.4640593880137607) internal successors, (16172), 11047 states have internal predecessors, (16172), 0 states have call successors, (0), 0 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 09:45:39,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11048 states to 11048 states and 16172 transitions. [2024-11-16 09:45:39,787 INFO L78 Accepts]: Start accepts. Automaton has 11048 states and 16172 transitions. Word has length 92 [2024-11-16 09:45:39,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:39,787 INFO L471 AbstractCegarLoop]: Abstraction has 11048 states and 16172 transitions. [2024-11-16 09:45:39,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:39,787 INFO L276 IsEmpty]: Start isEmpty. Operand 11048 states and 16172 transitions. [2024-11-16 09:45:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:39,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:39,790 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:39,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:45:39,791 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash 626624344, now seen corresponding path program 1 times [2024-11-16 09:45:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:39,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328943391] [2024-11-16 09:45:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:39,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:45:39,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:39,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328943391] [2024-11-16 09:45:39,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328943391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:39,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:39,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:45:39,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219165082] [2024-11-16 09:45:39,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:39,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:39,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:39,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:39,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:39,885 INFO L87 Difference]: Start difference. First operand 11048 states and 16172 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 09:45:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:42,252 INFO L93 Difference]: Finished difference Result 17819 states and 27234 transitions. [2024-11-16 09:45:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:42,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:42,273 INFO L225 Difference]: With dead ends: 17819 [2024-11-16 09:45:42,273 INFO L226 Difference]: Without dead ends: 14056 [2024-11-16 09:45:42,280 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 09:45:42,281 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 854 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:42,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 607 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:45:42,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14056 states. [2024-11-16 09:45:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14056 to 14056. [2024-11-16 09:45:42,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14056 states, 14054 states have (on average 1.415966984488402) internal successors, (19900), 14055 states have internal predecessors, (19900), 0 states have call successors, (0), 0 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 09:45:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14056 states to 14056 states and 19900 transitions. [2024-11-16 09:45:42,472 INFO L78 Accepts]: Start accepts. Automaton has 14056 states and 19900 transitions. Word has length 94 [2024-11-16 09:45:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:42,473 INFO L471 AbstractCegarLoop]: Abstraction has 14056 states and 19900 transitions. [2024-11-16 09:45:42,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 09:45:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14056 states and 19900 transitions. [2024-11-16 09:45:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:42,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:42,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:45:42,475 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:42,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash 449686707, now seen corresponding path program 1 times [2024-11-16 09:45:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313534433] [2024-11-16 09:45:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:42,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:45:42,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:42,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313534433] [2024-11-16 09:45:42,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313534433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:42,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:42,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238361131] [2024-11-16 09:45:42,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:42,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:42,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:42,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:42,653 INFO L87 Difference]: Start difference. First operand 14056 states and 19900 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 09:45:43,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:43,215 INFO L93 Difference]: Finished difference Result 59005 states and 83242 transitions. [2024-11-16 09:45:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:43,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:43,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:43,295 INFO L225 Difference]: With dead ends: 59005 [2024-11-16 09:45:43,296 INFO L226 Difference]: Without dead ends: 51770 [2024-11-16 09:45:43,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:43,321 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 8147 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8147 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:43,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8147 Valid, 3907 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51770 states. [2024-11-16 09:45:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51770 to 21288. [2024-11-16 09:45:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21288 states, 21286 states have (on average 1.4099408061636756) internal successors, (30012), 21287 states have internal predecessors, (30012), 0 states have call successors, (0), 0 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 09:45:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21288 states to 21288 states and 30012 transitions. [2024-11-16 09:45:43,837 INFO L78 Accepts]: Start accepts. Automaton has 21288 states and 30012 transitions. Word has length 94 [2024-11-16 09:45:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:43,837 INFO L471 AbstractCegarLoop]: Abstraction has 21288 states and 30012 transitions. [2024-11-16 09:45:43,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 09:45:43,837 INFO L276 IsEmpty]: Start isEmpty. Operand 21288 states and 30012 transitions. [2024-11-16 09:45:43,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:43,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:43,843 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:43,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:45:43,844 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:43,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:43,844 INFO L85 PathProgramCache]: Analyzing trace with hash -551723021, now seen corresponding path program 1 times [2024-11-16 09:45:43,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:43,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498242857] [2024-11-16 09:45:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:43,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:45:43,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:43,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498242857] [2024-11-16 09:45:43,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498242857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:43,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:43,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:43,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117716065] [2024-11-16 09:45:43,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:43,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:43,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:43,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:43,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:43,992 INFO L87 Difference]: Start difference. First operand 21288 states and 30012 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:44,745 INFO L93 Difference]: Finished difference Result 66237 states and 93354 transitions. [2024-11-16 09:45:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:44,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:44,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:44,815 INFO L225 Difference]: With dead ends: 66237 [2024-11-16 09:45:44,816 INFO L226 Difference]: Without dead ends: 59002 [2024-11-16 09:45:44,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:44,838 INFO L432 NwaCegarLoop]: 1648 mSDtfsCounter, 8198 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8198 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:44,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8198 Valid, 3829 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59002 states. [2024-11-16 09:45:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59002 to 32168. [2024-11-16 09:45:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32168 states, 32166 states have (on average 1.4025990175962195) internal successors, (45116), 32167 states have internal predecessors, (45116), 0 states have call successors, (0), 0 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 09:45:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32168 states to 32168 states and 45116 transitions. [2024-11-16 09:45:45,722 INFO L78 Accepts]: Start accepts. Automaton has 32168 states and 45116 transitions. Word has length 94 [2024-11-16 09:45:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:45,723 INFO L471 AbstractCegarLoop]: Abstraction has 32168 states and 45116 transitions. [2024-11-16 09:45:45,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 32168 states and 45116 transitions. [2024-11-16 09:45:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:45,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:45,726 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:45,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:45:45,726 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:45,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -566172877, now seen corresponding path program 1 times [2024-11-16 09:45:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:45,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076624687] [2024-11-16 09:45:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:45,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:45:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076624687] [2024-11-16 09:45:45,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076624687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:45,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:45,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:45,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054602427] [2024-11-16 09:45:45,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:45,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:45,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:45,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:45,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:45,860 INFO L87 Difference]: Start difference. First operand 32168 states and 45116 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 09:45:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:46,691 INFO L93 Difference]: Finished difference Result 73469 states and 103466 transitions. [2024-11-16 09:45:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:46,765 INFO L225 Difference]: With dead ends: 73469 [2024-11-16 09:45:46,766 INFO L226 Difference]: Without dead ends: 66234 [2024-11-16 09:45:46,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:46,931 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 8250 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8250 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:46,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8250 Valid, 3834 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66234 states. [2024-11-16 09:45:47,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66234 to 39400. [2024-11-16 09:45:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39400 states, 39398 states have (on average 1.4017970455353064) internal successors, (55228), 39399 states have internal predecessors, (55228), 0 states have call successors, (0), 0 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 09:45:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39400 states to 39400 states and 55228 transitions. [2024-11-16 09:45:47,634 INFO L78 Accepts]: Start accepts. Automaton has 39400 states and 55228 transitions. Word has length 94 [2024-11-16 09:45:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:47,634 INFO L471 AbstractCegarLoop]: Abstraction has 39400 states and 55228 transitions. [2024-11-16 09:45:47,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 09:45:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 39400 states and 55228 transitions. [2024-11-16 09:45:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:47,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:47,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:47,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:45:47,638 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:47,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1525429875, now seen corresponding path program 1 times [2024-11-16 09:45:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159310950] [2024-11-16 09:45:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:45:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:47,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159310950] [2024-11-16 09:45:47,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159310950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:47,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:47,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:47,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814850396] [2024-11-16 09:45:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:47,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:47,908 INFO L87 Difference]: Start difference. First operand 39400 states and 55228 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 09:45:49,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:49,086 INFO L93 Difference]: Finished difference Result 80701 states and 113578 transitions. [2024-11-16 09:45:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:49,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:49,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:49,173 INFO L225 Difference]: With dead ends: 80701 [2024-11-16 09:45:49,174 INFO L226 Difference]: Without dead ends: 73466 [2024-11-16 09:45:49,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:49,194 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8147 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8147 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:49,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8147 Valid, 3935 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73466 states. [2024-11-16 09:45:50,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73466 to 46632. [2024-11-16 09:45:50,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46632 states, 46630 states have (on average 1.4012438344413467) internal successors, (65340), 46631 states have internal predecessors, (65340), 0 states have call successors, (0), 0 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 09:45:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46632 states to 46632 states and 65340 transitions. [2024-11-16 09:45:50,521 INFO L78 Accepts]: Start accepts. Automaton has 46632 states and 65340 transitions. Word has length 94 [2024-11-16 09:45:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:50,521 INFO L471 AbstractCegarLoop]: Abstraction has 46632 states and 65340 transitions. [2024-11-16 09:45:50,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 09:45:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 46632 states and 65340 transitions. [2024-11-16 09:45:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:50,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:50,525 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:50,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:45:50,525 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:50,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:50,526 INFO L85 PathProgramCache]: Analyzing trace with hash 731761011, now seen corresponding path program 1 times [2024-11-16 09:45:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:50,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680235877] [2024-11-16 09:45:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:45:50,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:50,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680235877] [2024-11-16 09:45:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680235877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:50,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:50,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028314323] [2024-11-16 09:45:50,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:50,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:50,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:50,669 INFO L87 Difference]: Start difference. First operand 46632 states and 65340 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 09:45:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:51,903 INFO L93 Difference]: Finished difference Result 87933 states and 123690 transitions. [2024-11-16 09:45:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:51,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:51,985 INFO L225 Difference]: With dead ends: 87933 [2024-11-16 09:45:51,985 INFO L226 Difference]: Without dead ends: 80698 [2024-11-16 09:45:52,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:52,002 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8083 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8083 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:52,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8083 Valid, 4090 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80698 states. [2024-11-16 09:45:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80698 to 53864. [2024-11-16 09:45:53,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53864 states, 53862 states have (on average 1.4008391816122683) internal successors, (75452), 53863 states have internal predecessors, (75452), 0 states have call successors, (0), 0 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 09:45:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53864 states to 53864 states and 75452 transitions. [2024-11-16 09:45:53,494 INFO L78 Accepts]: Start accepts. Automaton has 53864 states and 75452 transitions. Word has length 94 [2024-11-16 09:45:53,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:53,494 INFO L471 AbstractCegarLoop]: Abstraction has 53864 states and 75452 transitions. [2024-11-16 09:45:53,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 09:45:53,494 INFO L276 IsEmpty]: Start isEmpty. Operand 53864 states and 75452 transitions. [2024-11-16 09:45:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:53,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:53,500 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:53,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:45:53,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:53,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash 646589077, now seen corresponding path program 1 times [2024-11-16 09:45:53,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233050900] [2024-11-16 09:45:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:53,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:53,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:53,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233050900] [2024-11-16 09:45:53,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233050900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:53,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:53,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891554526] [2024-11-16 09:45:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:53,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:53,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:53,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:53,610 INFO L87 Difference]: Start difference. First operand 53864 states and 75452 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,562 INFO L93 Difference]: Finished difference Result 87174 states and 122489 transitions. [2024-11-16 09:45:54,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:54,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-16 09:45:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,607 INFO L225 Difference]: With dead ends: 87174 [2024-11-16 09:45:54,607 INFO L226 Difference]: Without dead ends: 40131 [2024-11-16 09:45:54,631 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 09:45:54,631 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 59 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3175 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 09:45:54,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3175 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:54,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40131 states. [2024-11-16 09:45:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40131 to 40128. [2024-11-16 09:45:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40128 states, 40126 states have (on average 1.403279669042516) internal successors, (56308), 40127 states have internal predecessors, (56308), 0 states have call successors, (0), 0 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 09:45:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40128 states to 40128 states and 56308 transitions. [2024-11-16 09:45:55,478 INFO L78 Accepts]: Start accepts. Automaton has 40128 states and 56308 transitions. Word has length 96 [2024-11-16 09:45:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:55,478 INFO L471 AbstractCegarLoop]: Abstraction has 40128 states and 56308 transitions. [2024-11-16 09:45:55,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 40128 states and 56308 transitions. [2024-11-16 09:45:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:55,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:55,481 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:55,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:45:55,481 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:55,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1397821581, now seen corresponding path program 1 times [2024-11-16 09:45:55,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:55,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626648452] [2024-11-16 09:45:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:55,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:45:55,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:55,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626648452] [2024-11-16 09:45:55,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626648452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:55,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:55,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:55,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168615959] [2024-11-16 09:45:55,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:55,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:55,605 INFO L87 Difference]: Start difference. First operand 40128 states and 56308 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:56,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:56,612 INFO L93 Difference]: Finished difference Result 70869 states and 99714 transitions. [2024-11-16 09:45:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:56,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-16 09:45:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:56,677 INFO L225 Difference]: With dead ends: 70869 [2024-11-16 09:45:56,677 INFO L226 Difference]: Without dead ends: 65746 [2024-11-16 09:45:56,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:56,694 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8108 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:56,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 4030 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65746 states. [2024-11-16 09:45:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65746 to 45248. [2024-11-16 09:45:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45248 states, 45246 states have (on average 1.402908544401715) internal successors, (63476), 45247 states have internal predecessors, (63476), 0 states have call successors, (0), 0 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 09:45:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45248 states to 45248 states and 63476 transitions. [2024-11-16 09:45:58,244 INFO L78 Accepts]: Start accepts. Automaton has 45248 states and 63476 transitions. Word has length 96 [2024-11-16 09:45:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:58,244 INFO L471 AbstractCegarLoop]: Abstraction has 45248 states and 63476 transitions. [2024-11-16 09:45:58,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 45248 states and 63476 transitions. [2024-11-16 09:45:58,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:45:58,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:58,247 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:58,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:45:58,247 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:58,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash -987382443, now seen corresponding path program 1 times [2024-11-16 09:45:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:58,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809362913] [2024-11-16 09:45:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:58,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:58,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:58,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809362913] [2024-11-16 09:45:58,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809362913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:58,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:58,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416515535] [2024-11-16 09:45:58,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:58,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:58,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:58,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:58,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:58,319 INFO L87 Difference]: Start difference. First operand 45248 states and 63476 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 09:45:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:58,669 INFO L93 Difference]: Finished difference Result 64454 states and 90360 transitions. [2024-11-16 09:45:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-16 09:45:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:58,696 INFO L225 Difference]: With dead ends: 64454 [2024-11-16 09:45:58,697 INFO L226 Difference]: Without dead ends: 26051 [2024-11-16 09:45:58,720 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 09:45:58,720 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 52 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3160 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 09:45:58,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3160 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26051 states. [2024-11-16 09:45:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26051 to 26048. [2024-11-16 09:45:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26048 states, 26046 states have (on average 1.3958381325347462) internal successors, (36356), 26047 states have internal predecessors, (36356), 0 states have call successors, (0), 0 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 09:45:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26048 states to 26048 states and 36356 transitions. [2024-11-16 09:45:59,341 INFO L78 Accepts]: Start accepts. Automaton has 26048 states and 36356 transitions. Word has length 98 [2024-11-16 09:45:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:59,341 INFO L471 AbstractCegarLoop]: Abstraction has 26048 states and 36356 transitions. [2024-11-16 09:45:59,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 09:45:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 26048 states and 36356 transitions. [2024-11-16 09:45:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:45:59,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:59,343 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:59,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:45:59,344 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:59,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:59,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1359947049, now seen corresponding path program 1 times [2024-11-16 09:45:59,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:59,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893347411] [2024-11-16 09:45:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:59,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:59,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:59,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893347411] [2024-11-16 09:45:59,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893347411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:59,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:59,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435557883] [2024-11-16 09:45:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:59,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:59,426 INFO L87 Difference]: Start difference. First operand 26048 states and 36356 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 09:45:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:59,612 INFO L93 Difference]: Finished difference Result 35654 states and 49680 transitions. [2024-11-16 09:45:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 09:45:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:59,630 INFO L225 Difference]: With dead ends: 35654 [2024-11-16 09:45:59,630 INFO L226 Difference]: Without dead ends: 16451 [2024-11-16 09:45:59,643 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 09:45:59,645 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 47 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3145 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 09:45:59,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3145 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2024-11-16 09:45:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16448. [2024-11-16 09:45:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16448 states, 16446 states have (on average 1.3934087316064696) internal successors, (22916), 16447 states have internal predecessors, (22916), 0 states have call successors, (0), 0 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 09:46:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16448 states to 16448 states and 22916 transitions. [2024-11-16 09:46:00,007 INFO L78 Accepts]: Start accepts. Automaton has 16448 states and 22916 transitions. Word has length 100 [2024-11-16 09:46:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:00,007 INFO L471 AbstractCegarLoop]: Abstraction has 16448 states and 22916 transitions. [2024-11-16 09:46:00,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 09:46:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 16448 states and 22916 transitions. [2024-11-16 09:46:00,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:46:00,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:00,009 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, 1, 1, 1, 1, 1, 1, 1, 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 09:46:00,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:46:00,009 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:00,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash -975182626, now seen corresponding path program 1 times [2024-11-16 09:46:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:00,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233809459] [2024-11-16 09:46:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:00,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233809459] [2024-11-16 09:46:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233809459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:46:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:46:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:46:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800971571] [2024-11-16 09:46:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:46:00,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:46:00,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:46:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:46:00,080 INFO L87 Difference]: Start difference. First operand 16448 states and 22916 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 09:46:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:00,186 INFO L93 Difference]: Finished difference Result 21254 states and 29520 transitions. [2024-11-16 09:46:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:46:00,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 09:46:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:00,199 INFO L225 Difference]: With dead ends: 21254 [2024-11-16 09:46:00,199 INFO L226 Difference]: Without dead ends: 11651 [2024-11-16 09:46:00,206 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 09:46:00,207 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 44 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3130 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 09:46:00,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:46:00,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11651 states. [2024-11-16 09:46:00,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11651 to 11648. [2024-11-16 09:46:00,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11648 states, 11646 states have (on average 1.3958440666323202) internal successors, (16256), 11647 states have internal predecessors, (16256), 0 states have call successors, (0), 0 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 09:46:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11648 states to 11648 states and 16256 transitions. [2024-11-16 09:46:00,351 INFO L78 Accepts]: Start accepts. Automaton has 11648 states and 16256 transitions. Word has length 102 [2024-11-16 09:46:00,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:00,352 INFO L471 AbstractCegarLoop]: Abstraction has 11648 states and 16256 transitions. [2024-11-16 09:46:00,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 09:46:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 11648 states and 16256 transitions. [2024-11-16 09:46:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:46:00,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:00,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:00,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:46:00,353 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:00,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:00,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1599975429, now seen corresponding path program 1 times [2024-11-16 09:46:00,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:00,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645949325] [2024-11-16 09:46:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:00,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645949325] [2024-11-16 09:46:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645949325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:46:00,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:46:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:46:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588827894] [2024-11-16 09:46:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:46:00,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:46:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:46:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:46:00,413 INFO L87 Difference]: Start difference. First operand 11648 states and 16256 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 09:46:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:00,478 INFO L93 Difference]: Finished difference Result 14054 states and 19530 transitions. [2024-11-16 09:46:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:46:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 09:46:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:00,487 INFO L225 Difference]: With dead ends: 14054 [2024-11-16 09:46:00,487 INFO L226 Difference]: Without dead ends: 9251 [2024-11-16 09:46:00,490 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 09:46:00,491 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 41 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3115 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 09:46:00,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:46:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2024-11-16 09:46:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 9248. [2024-11-16 09:46:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9248 states, 9246 states have (on average 1.4012545965823058) internal successors, (12956), 9247 states have internal predecessors, (12956), 0 states have call successors, (0), 0 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 09:46:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9248 states to 9248 states and 12956 transitions. [2024-11-16 09:46:00,588 INFO L78 Accepts]: Start accepts. Automaton has 9248 states and 12956 transitions. Word has length 104 [2024-11-16 09:46:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:00,588 INFO L471 AbstractCegarLoop]: Abstraction has 9248 states and 12956 transitions. [2024-11-16 09:46:00,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 09:46:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 9248 states and 12956 transitions. [2024-11-16 09:46:00,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:46:00,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:00,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:00,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:46:00,590 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:00,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:00,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2124065868, now seen corresponding path program 1 times [2024-11-16 09:46:00,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:00,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511418191] [2024-11-16 09:46:00,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:00,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:00,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:00,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511418191] [2024-11-16 09:46:00,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511418191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:46:00,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:46:00,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:46:00,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946518382] [2024-11-16 09:46:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:46:00,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:46:00,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:46:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:46:00,651 INFO L87 Difference]: Start difference. First operand 9248 states and 12956 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:46:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:00,694 INFO L93 Difference]: Finished difference Result 10454 states and 14580 transitions. [2024-11-16 09:46:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:46:00,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-16 09:46:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:00,701 INFO L225 Difference]: With dead ends: 10454 [2024-11-16 09:46:00,702 INFO L226 Difference]: Without dead ends: 8051 [2024-11-16 09:46:00,703 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 09:46:00,704 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 38 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3100 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 09:46:00,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:46:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8051 states. [2024-11-16 09:46:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8051 to 8048. [2024-11-16 09:46:00,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8048 states, 8046 states have (on average 1.4070345513298534) internal successors, (11321), 8047 states have internal predecessors, (11321), 0 states have call successors, (0), 0 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 09:46:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8048 states to 8048 states and 11321 transitions. [2024-11-16 09:46:00,778 INFO L78 Accepts]: Start accepts. Automaton has 8048 states and 11321 transitions. Word has length 106 [2024-11-16 09:46:00,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:00,778 INFO L471 AbstractCegarLoop]: Abstraction has 8048 states and 11321 transitions. [2024-11-16 09:46:00,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:46:00,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8048 states and 11321 transitions. [2024-11-16 09:46:00,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:46:00,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:00,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:00,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 09:46:00,779 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:00,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1444497843, now seen corresponding path program 1 times [2024-11-16 09:46:00,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185945619] [2024-11-16 09:46:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:01,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:01,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185945619] [2024-11-16 09:46:01,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185945619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:01,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452215748] [2024-11-16 09:46:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:01,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:01,162 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 09:46:01,163 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 09:46:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:01,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:46:01,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:01,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:02,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452215748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:02,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:02,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-16 09:46:02,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647298965] [2024-11-16 09:46:02,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:02,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-16 09:46:02,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:02,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-16 09:46:02,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-16 09:46:02,916 INFO L87 Difference]: Start difference. First operand 8048 states and 11321 transitions. Second operand has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:46:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:04,101 INFO L93 Difference]: Finished difference Result 13169 states and 18175 transitions. [2024-11-16 09:46:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:46:04,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-16 09:46:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:04,115 INFO L225 Difference]: With dead ends: 13169 [2024-11-16 09:46:04,116 INFO L226 Difference]: Without dead ends: 11966 [2024-11-16 09:46:04,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=653, Invalid=2539, Unknown=0, NotChecked=0, Total=3192 [2024-11-16 09:46:04,122 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 19339 mSDsluCounter, 6631 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19339 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:04,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19339 Valid, 8151 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:46:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11966 states. [2024-11-16 09:46:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11966 to 11888. [2024-11-16 09:46:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11888 states, 11886 states have (on average 1.3727073868416624) internal successors, (16316), 11887 states have internal predecessors, (16316), 0 states have call successors, (0), 0 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 09:46:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11888 states to 11888 states and 16316 transitions. [2024-11-16 09:46:04,377 INFO L78 Accepts]: Start accepts. Automaton has 11888 states and 16316 transitions. Word has length 108 [2024-11-16 09:46:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:04,378 INFO L471 AbstractCegarLoop]: Abstraction has 11888 states and 16316 transitions. [2024-11-16 09:46:04,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.538461538461538) internal successors, (300), 25 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:46:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 11888 states and 16316 transitions. [2024-11-16 09:46:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:46:04,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:04,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:04,396 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 09:46:04,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 09:46:04,585 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:04,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:04,585 INFO L85 PathProgramCache]: Analyzing trace with hash -82417965, now seen corresponding path program 1 times [2024-11-16 09:46:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:04,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458278911] [2024-11-16 09:46:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:04,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458278911] [2024-11-16 09:46:04,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458278911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579381655] [2024-11-16 09:46:04,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:04,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:04,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:04,985 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 09:46:04,986 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 09:46:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:05,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:46:05,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:05,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:06,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579381655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:06,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:06,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:46:06,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406580614] [2024-11-16 09:46:06,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:06,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:46:06,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:46:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:46:06,493 INFO L87 Difference]: Start difference. First operand 11888 states and 16316 transitions. Second operand has 25 states, 25 states have (on average 11.76) internal successors, (294), 24 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 09:46:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:07,860 INFO L93 Difference]: Finished difference Result 32789 states and 43810 transitions. [2024-11-16 09:46:07,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:46:07,861 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.76) internal successors, (294), 24 states have internal predecessors, (294), 0 states have call successors, (0), 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 108 [2024-11-16 09:46:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:07,888 INFO L225 Difference]: With dead ends: 32789 [2024-11-16 09:46:07,888 INFO L226 Difference]: Without dead ends: 27746 [2024-11-16 09:46:07,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=574, Invalid=2288, Unknown=0, NotChecked=0, Total=2862 [2024-11-16 09:46:07,899 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 19192 mSDsluCounter, 8631 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19192 SdHoareTripleChecker+Valid, 10183 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:07,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19192 Valid, 10183 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:46:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27746 states. [2024-11-16 09:46:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27746 to 27488. [2024-11-16 09:46:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27488 states, 27486 states have (on average 1.3227097431419632) internal successors, (36356), 27487 states have internal predecessors, (36356), 0 states have call successors, (0), 0 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 09:46:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27488 states to 27488 states and 36356 transitions. [2024-11-16 09:46:08,470 INFO L78 Accepts]: Start accepts. Automaton has 27488 states and 36356 transitions. Word has length 108 [2024-11-16 09:46:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:08,470 INFO L471 AbstractCegarLoop]: Abstraction has 27488 states and 36356 transitions. [2024-11-16 09:46:08,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.76) internal successors, (294), 24 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 09:46:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27488 states and 36356 transitions. [2024-11-16 09:46:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 09:46:08,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:08,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:08,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:08,674 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,SelfDestructingSolverStorable27 [2024-11-16 09:46:08,675 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:08,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1307170852, now seen corresponding path program 1 times [2024-11-16 09:46:08,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:08,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646849977] [2024-11-16 09:46:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:09,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:09,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646849977] [2024-11-16 09:46:09,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646849977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:09,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533160316] [2024-11-16 09:46:09,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:09,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:09,110 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 09:46:09,111 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 09:46:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:09,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:46:09,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:09,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533160316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:10,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:10,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-16 09:46:10,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175399938] [2024-11-16 09:46:10,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:10,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 09:46:10,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:10,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 09:46:10,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-16 09:46:10,118 INFO L87 Difference]: Start difference. First operand 27488 states and 36356 transitions. Second operand has 21 states, 21 states have (on average 11.238095238095237) internal successors, (236), 20 states have internal predecessors, (236), 0 states have call successors, (0), 0 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 09:46:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:11,208 INFO L93 Difference]: Finished difference Result 70217 states and 91802 transitions. [2024-11-16 09:46:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:46:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.238095238095237) internal successors, (236), 20 states have internal predecessors, (236), 0 states have call successors, (0), 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 110 [2024-11-16 09:46:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:11,274 INFO L225 Difference]: With dead ends: 70217 [2024-11-16 09:46:11,275 INFO L226 Difference]: Without dead ends: 49574 [2024-11-16 09:46:11,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:46:11,302 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 11007 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11007 SdHoareTripleChecker+Valid, 5058 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:11,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11007 Valid, 5058 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:46:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49574 states. [2024-11-16 09:46:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49574 to 49088. [2024-11-16 09:46:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49088 states, 49086 states have (on average 1.2980483233508535) internal successors, (63716), 49087 states have internal predecessors, (63716), 0 states have call successors, (0), 0 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 09:46:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49088 states to 49088 states and 63716 transitions. [2024-11-16 09:46:12,960 INFO L78 Accepts]: Start accepts. Automaton has 49088 states and 63716 transitions. Word has length 110 [2024-11-16 09:46:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:12,961 INFO L471 AbstractCegarLoop]: Abstraction has 49088 states and 63716 transitions. [2024-11-16 09:46:12,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.238095238095237) internal successors, (236), 20 states have internal predecessors, (236), 0 states have call successors, (0), 0 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 09:46:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 49088 states and 63716 transitions. [2024-11-16 09:46:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 09:46:12,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:12,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:12,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:46:13,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 09:46:13,167 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:13,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash -317853522, now seen corresponding path program 1 times [2024-11-16 09:46:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:13,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175349771] [2024-11-16 09:46:13,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:13,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:13,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175349771] [2024-11-16 09:46:13,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175349771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599344199] [2024-11-16 09:46:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:13,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:13,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:13,832 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 09:46:13,833 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 09:46:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:13,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-16 09:46:13,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:15,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:17,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599344199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:17,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 39 [2024-11-16 09:46:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640813604] [2024-11-16 09:46:17,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:17,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-16 09:46:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-16 09:46:17,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1336, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 09:46:17,446 INFO L87 Difference]: Start difference. First operand 49088 states and 63716 transitions. Second operand has 40 states, 40 states have (on average 7.3) internal successors, (292), 39 states have internal predecessors, (292), 0 states have call successors, (0), 0 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 09:46:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:36,636 INFO L93 Difference]: Finished difference Result 228116 states and 291324 transitions. [2024-11-16 09:46:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-11-16 09:46:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 7.3) internal successors, (292), 39 states have internal predecessors, (292), 0 states have call successors, (0), 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 111 [2024-11-16 09:46:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:36,958 INFO L225 Difference]: With dead ends: 228116 [2024-11-16 09:46:36,958 INFO L226 Difference]: Without dead ends: 185873 [2024-11-16 09:46:36,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19652 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=7360, Invalid=42592, Unknown=0, NotChecked=0, Total=49952 [2024-11-16 09:46:36,995 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 22105 mSDsluCounter, 21905 mSDsCounter, 0 mSdLazyCounter, 4324 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22105 SdHoareTripleChecker+Valid, 23518 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:36,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22105 Valid, 23518 Invalid, 4401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 4324 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:46:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185873 states. [2024-11-16 09:46:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185873 to 108656. [2024-11-16 09:46:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108656 states, 108654 states have (on average 1.2753511145470944) internal successors, (138572), 108655 states have internal predecessors, (138572), 0 states have call successors, (0), 0 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 09:46:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108656 states to 108656 states and 138572 transitions. [2024-11-16 09:46:40,498 INFO L78 Accepts]: Start accepts. Automaton has 108656 states and 138572 transitions. Word has length 111 [2024-11-16 09:46:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:40,498 INFO L471 AbstractCegarLoop]: Abstraction has 108656 states and 138572 transitions. [2024-11-16 09:46:40,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 7.3) internal successors, (292), 39 states have internal predecessors, (292), 0 states have call successors, (0), 0 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 09:46:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 108656 states and 138572 transitions. [2024-11-16 09:46:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:46:40,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:40,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:40,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:46:40,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:40,708 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:40,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1519572535, now seen corresponding path program 1 times [2024-11-16 09:46:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452368942] [2024-11-16 09:46:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:41,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452368942] [2024-11-16 09:46:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452368942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540190998] [2024-11-16 09:46:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:41,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:41,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:41,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:41,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:46:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:41,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-16 09:46:41,490 INFO L278 TraceCheckSpWp]: Computing forward predicates...