./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.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.5.ufo.UNBOUNDED.pals+Problem12_label04.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 1aca40c6fb295c9a2e56226d72fd8b40da8517a7cbcabf878259c9e76e6a2f97 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:42:09,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:42:10,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:42:10,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:42:10,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:42:10,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:42:10,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:42:10,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:42:10,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:42:10,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:42:10,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:42:10,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:42:10,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:42:10,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:42:10,098 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:42:10,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:42:10,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:42:10,098 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:42:10,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:42:10,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:42:10,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:42:10,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:42:10,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:42:10,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:42:10,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:42:10,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:42:10,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:42:10,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:42:10,102 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:42:10,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:42:10,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:42:10,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:42:10,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:10,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:42:10,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:42:10,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:42:10,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:42:10,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:42:10,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:42:10,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:42:10,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:42:10,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:42:10,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aca40c6fb295c9a2e56226d72fd8b40da8517a7cbcabf878259c9e76e6a2f97 [2024-11-16 09:42:10,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:42:10,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:42:10,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:42:10,379 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:42:10,379 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:42:10,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:42:11,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:42:12,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:42:12,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:42:12,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d36311f8f/c73f9210eb3f4c16a13998312af61831/FLAGdd1380d69 [2024-11-16 09:42:12,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d36311f8f/c73f9210eb3f4c16a13998312af61831 [2024-11-16 09:42:12,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:42:12,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:42:12,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:12,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:42:12,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:42:12,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:12" (1/1) ... [2024-11-16 09:42:12,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25dc960a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:12, skipping insertion in model container [2024-11-16 09:42:12,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:12" (1/1) ... [2024-11-16 09:42:12,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:42:12,762 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.5.ufo.UNBOUNDED.pals+Problem12_label04.c[11668,11681] [2024-11-16 09:42:12,823 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.5.ufo.UNBOUNDED.pals+Problem12_label04.c[18729,18742] [2024-11-16 09:42:13,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:13,501 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:42:13,539 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.5.ufo.UNBOUNDED.pals+Problem12_label04.c[11668,11681] [2024-11-16 09:42:13,554 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.5.ufo.UNBOUNDED.pals+Problem12_label04.c[18729,18742] [2024-11-16 09:42:13,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:13,984 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:42:13,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13 WrapperNode [2024-11-16 09:42:13,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:13,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:13,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:42:13,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:42:13,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,355 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-11-16 09:42:14,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:14,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:42:14,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:42:14,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:42:14,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,418 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,587 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 09:42:14,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,710 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:42:14,807 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:42:14,807 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:42:14,807 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:42:14,808 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (1/1) ... [2024-11-16 09:42:14,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:14,840 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 09:42:14,848 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 09:42:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:42:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:42:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:42:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:42:15,027 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:42:15,029 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:42:19,203 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2129: havoc calculate_output_#t~ret37#1; [2024-11-16 09:42:19,204 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3608: havoc calculate_output2_#t~ret38#1; [2024-11-16 09:42:19,204 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5098: havoc calculate_output3_#t~ret39#1; [2024-11-16 09:42:19,358 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-16 09:42:19,358 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:42:19,400 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:42:19,401 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:42:19,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:19 BoogieIcfgContainer [2024-11-16 09:42:19,401 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:42:19,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:42:19,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:42:19,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:42:19,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:42:12" (1/3) ... [2024-11-16 09:42:19,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5658b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:19, skipping insertion in model container [2024-11-16 09:42:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:13" (2/3) ... [2024-11-16 09:42:19,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5658b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:19, skipping insertion in model container [2024-11-16 09:42:19,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:19" (3/3) ... [2024-11-16 09:42:19,413 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:42:19,429 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:42:19,430 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:42:19,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:42:19,542 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;@19d13bcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:42:19,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:42:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 908 states, 905 states have (on average 1.8972375690607735) internal successors, (1717), 907 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states 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 09:42:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:19,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:19,564 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] [2024-11-16 09:42:19,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:19,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1541591592, now seen corresponding path program 1 times [2024-11-16 09:42:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:19,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022484036] [2024-11-16 09:42:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:19,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:19,868 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 09:42:19,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022484036] [2024-11-16 09:42:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022484036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:19,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:19,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:42:19,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923087745] [2024-11-16 09:42:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:19,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:42:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:42:19,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:42:19,941 INFO L87 Difference]: Start difference. First operand has 908 states, 905 states have (on average 1.8972375690607735) internal successors, (1717), 907 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:20,034 INFO L93 Difference]: Finished difference Result 1775 states and 3360 transitions. [2024-11-16 09:42:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:42:20,037 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-16 09:42:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:20,061 INFO L225 Difference]: With dead ends: 1775 [2024-11-16 09:42:20,061 INFO L226 Difference]: Without dead ends: 840 [2024-11-16 09:42:20,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:42:20,074 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:20,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:20,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-16 09:42:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2024-11-16 09:42:20,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.8878281622911695) internal successors, (1582), 839 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states 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 09:42:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1582 transitions. [2024-11-16 09:42:20,166 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1582 transitions. Word has length 26 [2024-11-16 09:42:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:20,167 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1582 transitions. [2024-11-16 09:42:20,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1582 transitions. [2024-11-16 09:42:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:20,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:20,169 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] [2024-11-16 09:42:20,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:42:20,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:20,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1950415817, now seen corresponding path program 1 times [2024-11-16 09:42:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848844764] [2024-11-16 09:42:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:20,423 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 09:42:20,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848844764] [2024-11-16 09:42:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848844764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:20,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:42:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792161828] [2024-11-16 09:42:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:20,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:42:20,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:20,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:42:20,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:42:20,431 INFO L87 Difference]: Start difference. First operand 840 states and 1582 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:20,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:20,577 INFO L93 Difference]: Finished difference Result 891 states and 1659 transitions. [2024-11-16 09:42:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:42:20,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-16 09:42:20,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:20,583 INFO L225 Difference]: With dead ends: 891 [2024-11-16 09:42:20,583 INFO L226 Difference]: Without dead ends: 840 [2024-11-16 09:42:20,584 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 09:42:20,585 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 0 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:20,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6284 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-16 09:42:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2024-11-16 09:42:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.8508353221957041) internal successors, (1551), 839 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states 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 09:42:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1551 transitions. [2024-11-16 09:42:20,636 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1551 transitions. Word has length 26 [2024-11-16 09:42:20,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:20,637 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1551 transitions. [2024-11-16 09:42:20,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1551 transitions. [2024-11-16 09:42:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 09:42:20,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:20,641 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] [2024-11-16 09:42:20,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:42:20,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:20,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1916981497, now seen corresponding path program 1 times [2024-11-16 09:42:20,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:20,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486662074] [2024-11-16 09:42:20,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:20,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:20,895 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 09:42:20,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:20,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486662074] [2024-11-16 09:42:20,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486662074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:20,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:20,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739175724] [2024-11-16 09:42:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:20,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:20,901 INFO L87 Difference]: Start difference. First operand 840 states and 1551 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:21,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:21,219 INFO L93 Difference]: Finished difference Result 1310 states and 2281 transitions. [2024-11-16 09:42:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:42:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 09:42:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:21,227 INFO L225 Difference]: With dead ends: 1310 [2024-11-16 09:42:21,228 INFO L226 Difference]: Without dead ends: 1263 [2024-11-16 09:42:21,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-16 09:42:21,232 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 8019 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8019 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:21,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8019 Valid, 2755 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:21,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2024-11-16 09:42:21,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 884. [2024-11-16 09:42:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 882 states have (on average 1.836734693877551) internal successors, (1620), 883 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 09:42:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1620 transitions. [2024-11-16 09:42:21,260 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1620 transitions. Word has length 56 [2024-11-16 09:42:21,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:21,261 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1620 transitions. [2024-11-16 09:42:21,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:21,261 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1620 transitions. [2024-11-16 09:42:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 09:42:21,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:21,263 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] [2024-11-16 09:42:21,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:42:21,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:21,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1967609179, now seen corresponding path program 1 times [2024-11-16 09:42:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:21,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611303854] [2024-11-16 09:42:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:21,567 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 09:42:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:21,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611303854] [2024-11-16 09:42:21,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611303854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:21,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782275994] [2024-11-16 09:42:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:21,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:21,570 INFO L87 Difference]: Start difference. First operand 884 states and 1620 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 09:42:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:21,743 INFO L93 Difference]: Finished difference Result 978 states and 1764 transitions. [2024-11-16 09:42:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:21,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-16 09:42:21,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:21,747 INFO L225 Difference]: With dead ends: 978 [2024-11-16 09:42:21,747 INFO L226 Difference]: Without dead ends: 887 [2024-11-16 09:42:21,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:42:21,749 INFO L432 NwaCegarLoop]: 1544 mSDtfsCounter, 4500 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:21,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4500 Valid, 1821 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-16 09:42:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 884. [2024-11-16 09:42:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 882 states have (on average 1.8356009070294785) internal successors, (1619), 883 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states 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 09:42:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1619 transitions. [2024-11-16 09:42:21,766 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1619 transitions. Word has length 58 [2024-11-16 09:42:21,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:21,766 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1619 transitions. [2024-11-16 09:42:21,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 09:42:21,767 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1619 transitions. [2024-11-16 09:42:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 09:42:21,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:21,768 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] [2024-11-16 09:42:21,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:42:21,769 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:21,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:21,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1704805686, now seen corresponding path program 1 times [2024-11-16 09:42:21,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135986513] [2024-11-16 09:42:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:21,875 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 09:42:21,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:21,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135986513] [2024-11-16 09:42:21,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135986513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:21,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:21,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:21,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083747291] [2024-11-16 09:42:21,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:21,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:21,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:21,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:21,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:21,879 INFO L87 Difference]: Start difference. First operand 884 states and 1619 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 09:42:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:21,922 INFO L93 Difference]: Finished difference Result 1054 states and 1881 transitions. [2024-11-16 09:42:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-16 09:42:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:21,927 INFO L225 Difference]: With dead ends: 1054 [2024-11-16 09:42:21,928 INFO L226 Difference]: Without dead ends: 963 [2024-11-16 09:42:21,928 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 09:42:21,929 INFO L432 NwaCegarLoop]: 1547 mSDtfsCounter, 1488 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1613 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 09:42:21,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1613 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-16 09:42:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 958. [2024-11-16 09:42:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 956 states have (on average 1.8106694560669456) internal successors, (1731), 957 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states 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 09:42:21,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1731 transitions. [2024-11-16 09:42:21,949 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1731 transitions. Word has length 59 [2024-11-16 09:42:21,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:21,950 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1731 transitions. [2024-11-16 09:42:21,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 09:42:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1731 transitions. [2024-11-16 09:42:21,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:21,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:21,952 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] [2024-11-16 09:42:21,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:42:21,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:21,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:21,954 INFO L85 PathProgramCache]: Analyzing trace with hash -868455267, now seen corresponding path program 1 times [2024-11-16 09:42:21,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:21,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094600439] [2024-11-16 09:42:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:21,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:22,033 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 09:42:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:22,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094600439] [2024-11-16 09:42:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094600439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:22,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:22,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303467662] [2024-11-16 09:42:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:22,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:22,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:22,037 INFO L87 Difference]: Start difference. First operand 958 states and 1731 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:22,070 INFO L93 Difference]: Finished difference Result 1272 states and 2209 transitions. [2024-11-16 09:42:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:22,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:22,076 INFO L225 Difference]: With dead ends: 1272 [2024-11-16 09:42:22,076 INFO L226 Difference]: Without dead ends: 1107 [2024-11-16 09:42:22,077 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 09:42:22,078 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 1501 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1678 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 09:42:22,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1678 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-11-16 09:42:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1104. [2024-11-16 09:42:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1102 states have (on average 1.7695099818511797) internal successors, (1950), 1103 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states 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 09:42:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1950 transitions. [2024-11-16 09:42:22,106 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1950 transitions. Word has length 60 [2024-11-16 09:42:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:22,107 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1950 transitions. [2024-11-16 09:42:22,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1950 transitions. [2024-11-16 09:42:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:22,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:22,147 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] [2024-11-16 09:42:22,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:42:22,148 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:22,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:22,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1869864995, now seen corresponding path program 1 times [2024-11-16 09:42:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:22,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363216403] [2024-11-16 09:42:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:22,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:22,208 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 09:42:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363216403] [2024-11-16 09:42:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363216403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:22,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:22,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:22,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091110890] [2024-11-16 09:42:22,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:22,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:22,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:22,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:22,211 INFO L87 Difference]: Start difference. First operand 1104 states and 1950 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:22,243 INFO L93 Difference]: Finished difference Result 1694 states and 2838 transitions. [2024-11-16 09:42:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:22,249 INFO L225 Difference]: With dead ends: 1694 [2024-11-16 09:42:22,249 INFO L226 Difference]: Without dead ends: 1383 [2024-11-16 09:42:22,249 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 09:42:22,250 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1499 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1680 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 09:42:22,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1680 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-11-16 09:42:22,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1380. [2024-11-16 09:42:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1378 states have (on average 1.7097242380261248) internal successors, (2356), 1379 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states 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 09:42:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2356 transitions. [2024-11-16 09:42:22,278 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2356 transitions. Word has length 60 [2024-11-16 09:42:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:22,278 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2356 transitions. [2024-11-16 09:42:22,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2356 transitions. [2024-11-16 09:42:22,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:22,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:22,279 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] [2024-11-16 09:42:22,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:42:22,280 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:22,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:22,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1884314851, now seen corresponding path program 1 times [2024-11-16 09:42:22,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:22,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630173868] [2024-11-16 09:42:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:22,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:22,332 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 09:42:22,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:22,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630173868] [2024-11-16 09:42:22,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630173868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:22,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:22,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436354716] [2024-11-16 09:42:22,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:22,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:22,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:22,335 INFO L87 Difference]: Start difference. First operand 1380 states and 2356 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:22,371 INFO L93 Difference]: Finished difference Result 2490 states and 4000 transitions. [2024-11-16 09:42:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:22,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:22,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:22,379 INFO L225 Difference]: With dead ends: 2490 [2024-11-16 09:42:22,379 INFO L226 Difference]: Without dead ends: 1903 [2024-11-16 09:42:22,380 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 09:42:22,381 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1497 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1682 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 09:42:22,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1682 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2024-11-16 09:42:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1900. [2024-11-16 09:42:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1898 states have (on average 1.6354056902002108) internal successors, (3104), 1899 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states 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 09:42:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 3104 transitions. [2024-11-16 09:42:22,424 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 3104 transitions. Word has length 60 [2024-11-16 09:42:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:22,425 INFO L471 AbstractCegarLoop]: Abstraction has 1900 states and 3104 transitions. [2024-11-16 09:42:22,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 3104 transitions. [2024-11-16 09:42:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:22,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:22,427 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] [2024-11-16 09:42:22,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:42:22,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:22,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:22,428 INFO L85 PathProgramCache]: Analyzing trace with hash 207287901, now seen corresponding path program 1 times [2024-11-16 09:42:22,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:22,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954379593] [2024-11-16 09:42:22,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:22,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:22,497 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 09:42:22,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:22,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954379593] [2024-11-16 09:42:22,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954379593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:22,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006445120] [2024-11-16 09:42:22,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:22,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:22,500 INFO L87 Difference]: Start difference. First operand 1900 states and 3104 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:22,546 INFO L93 Difference]: Finished difference Result 3986 states and 6132 transitions. [2024-11-16 09:42:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:22,555 INFO L225 Difference]: With dead ends: 3986 [2024-11-16 09:42:22,556 INFO L226 Difference]: Without dead ends: 2879 [2024-11-16 09:42:22,557 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 09:42:22,558 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 1495 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1684 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 09:42:22,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1684 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:22,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2024-11-16 09:42:22,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2876. [2024-11-16 09:42:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2874 states have (on average 1.5560194850382743) internal successors, (4472), 2875 states have internal predecessors, (4472), 0 states have call successors, (0), 0 states 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 09:42:22,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4472 transitions. [2024-11-16 09:42:22,619 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4472 transitions. Word has length 60 [2024-11-16 09:42:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:22,620 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 4472 transitions. [2024-11-16 09:42:22,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4472 transitions. [2024-11-16 09:42:22,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:22,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:22,621 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] [2024-11-16 09:42:22,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:42:22,621 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:22,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:22,622 INFO L85 PathProgramCache]: Analyzing trace with hash -316989154, now seen corresponding path program 1 times [2024-11-16 09:42:22,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:22,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89381693] [2024-11-16 09:42:22,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:22,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:22,852 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 09:42:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89381693] [2024-11-16 09:42:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89381693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:42:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11403124] [2024-11-16 09:42:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:22,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:42:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:42:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:42:22,854 INFO L87 Difference]: Start difference. First operand 2876 states and 4472 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:22,950 INFO L93 Difference]: Finished difference Result 2975 states and 4602 transitions. [2024-11-16 09:42:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:42:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:22,961 INFO L225 Difference]: With dead ends: 2975 [2024-11-16 09:42:22,962 INFO L226 Difference]: Without dead ends: 2972 [2024-11-16 09:42:22,963 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 09:42:22,963 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 9257 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10802 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 09:42:22,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10802 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2024-11-16 09:42:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2972. [2024-11-16 09:42:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2970 states have (on average 1.5326599326599326) internal successors, (4552), 2971 states have internal predecessors, (4552), 0 states have call successors, (0), 0 states 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 09:42:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4552 transitions. [2024-11-16 09:42:23,026 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4552 transitions. Word has length 60 [2024-11-16 09:42:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:23,026 INFO L471 AbstractCegarLoop]: Abstraction has 2972 states and 4552 transitions. [2024-11-16 09:42:23,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4552 transitions. [2024-11-16 09:42:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:42:23,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:23,027 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] [2024-11-16 09:42:23,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:42:23,027 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:23,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash 852820285, now seen corresponding path program 1 times [2024-11-16 09:42:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:23,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343773441] [2024-11-16 09:42:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:23,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:23,081 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 09:42:23,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:23,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343773441] [2024-11-16 09:42:23,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343773441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:23,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:23,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:23,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046743309] [2024-11-16 09:42:23,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:23,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:23,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:23,083 INFO L87 Difference]: Start difference. First operand 2972 states and 4552 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 09:42:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:23,144 INFO L93 Difference]: Finished difference Result 5286 states and 7857 transitions. [2024-11-16 09:42:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-16 09:42:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:23,157 INFO L225 Difference]: With dead ends: 5286 [2024-11-16 09:42:23,157 INFO L226 Difference]: Without dead ends: 4034 [2024-11-16 09:42:23,159 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 09:42:23,161 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 1500 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1679 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 09:42:23,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1679 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:23,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2024-11-16 09:42:23,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 4031. [2024-11-16 09:42:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4031 states, 4029 states have (on average 1.491933482253661) internal successors, (6011), 4030 states have internal predecessors, (6011), 0 states have call successors, (0), 0 states 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 09:42:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 6011 transitions. [2024-11-16 09:42:23,288 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 6011 transitions. Word has length 62 [2024-11-16 09:42:23,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:23,289 INFO L471 AbstractCegarLoop]: Abstraction has 4031 states and 6011 transitions. [2024-11-16 09:42:23,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 09:42:23,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 6011 transitions. [2024-11-16 09:42:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 09:42:23,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:23,290 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] [2024-11-16 09:42:23,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:42:23,290 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:23,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:23,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1767172515, now seen corresponding path program 1 times [2024-11-16 09:42:23,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:23,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948548939] [2024-11-16 09:42:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:23,346 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 09:42:23,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:23,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948548939] [2024-11-16 09:42:23,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948548939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:23,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:23,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:42:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807166387] [2024-11-16 09:42:23,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:23,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:23,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:23,349 INFO L87 Difference]: Start difference. First operand 4031 states and 6011 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:26,463 INFO L93 Difference]: Finished difference Result 5538 states and 8887 transitions. [2024-11-16 09:42:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:26,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-16 09:42:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:26,485 INFO L225 Difference]: With dead ends: 5538 [2024-11-16 09:42:26,485 INFO L226 Difference]: Without dead ends: 4783 [2024-11-16 09:42:26,488 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 09:42:26,488 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 850 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:26,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 589 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 09:42:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2024-11-16 09:42:26,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4783. [2024-11-16 09:42:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4781 states have (on average 1.4622463919682074) internal successors, (6991), 4782 states have internal predecessors, (6991), 0 states have call successors, (0), 0 states 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 09:42:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 6991 transitions. [2024-11-16 09:42:26,648 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 6991 transitions. Word has length 63 [2024-11-16 09:42:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:26,648 INFO L471 AbstractCegarLoop]: Abstraction has 4783 states and 6991 transitions. [2024-11-16 09:42:26,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 6991 transitions. [2024-11-16 09:42:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:26,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:26,651 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] [2024-11-16 09:42:26,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:42:26,651 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:26,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1095794021, now seen corresponding path program 1 times [2024-11-16 09:42:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:26,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789812700] [2024-11-16 09:42:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:26,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:42:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789812700] [2024-11-16 09:42:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789812700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:26,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834627906] [2024-11-16 09:42:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:26,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:26,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:26,811 INFO L87 Difference]: Start difference. First operand 4783 states and 6991 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:27,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:27,153 INFO L93 Difference]: Finished difference Result 21665 states and 30587 transitions. [2024-11-16 09:42:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:27,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 09:42:27,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:27,194 INFO L225 Difference]: With dead ends: 21665 [2024-11-16 09:42:27,194 INFO L226 Difference]: Without dead ends: 18430 [2024-11-16 09:42:27,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:27,206 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 6360 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6360 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:27,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6360 Valid, 3672 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18430 states. [2024-11-16 09:42:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18430 to 8015. [2024-11-16 09:42:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8015 states, 8013 states have (on average 1.4315487333083738) internal successors, (11471), 8014 states have internal predecessors, (11471), 0 states have call successors, (0), 0 states 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 09:42:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8015 states to 8015 states and 11471 transitions. [2024-11-16 09:42:27,553 INFO L78 Accepts]: Start accepts. Automaton has 8015 states and 11471 transitions. Word has length 81 [2024-11-16 09:42:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:27,553 INFO L471 AbstractCegarLoop]: Abstraction has 8015 states and 11471 transitions. [2024-11-16 09:42:27,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8015 states and 11471 transitions. [2024-11-16 09:42:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:27,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:27,557 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] [2024-11-16 09:42:27,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:42:27,558 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:27,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 94384293, now seen corresponding path program 1 times [2024-11-16 09:42:27,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:27,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287152241] [2024-11-16 09:42:27,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:27,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:42:27,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:27,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287152241] [2024-11-16 09:42:27,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287152241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:27,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:27,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:27,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162566690] [2024-11-16 09:42:27,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:27,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:27,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:27,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:27,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:27,776 INFO L87 Difference]: Start difference. First operand 8015 states and 11471 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:28,289 INFO L93 Difference]: Finished difference Result 24897 states and 35067 transitions. [2024-11-16 09:42:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:28,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 09:42:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:28,327 INFO L225 Difference]: With dead ends: 24897 [2024-11-16 09:42:28,327 INFO L226 Difference]: Without dead ends: 21662 [2024-11-16 09:42:28,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:28,339 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 6387 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6387 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:28,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6387 Valid, 3590 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21662 states. [2024-11-16 09:42:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21662 to 12879. [2024-11-16 09:42:28,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12879 states, 12877 states have (on average 1.4101887085501281) internal successors, (18159), 12878 states have internal predecessors, (18159), 0 states have call successors, (0), 0 states 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 09:42:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12879 states to 12879 states and 18159 transitions. [2024-11-16 09:42:28,817 INFO L78 Accepts]: Start accepts. Automaton has 12879 states and 18159 transitions. Word has length 81 [2024-11-16 09:42:28,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:28,818 INFO L471 AbstractCegarLoop]: Abstraction has 12879 states and 18159 transitions. [2024-11-16 09:42:28,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:28,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12879 states and 18159 transitions. [2024-11-16 09:42:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:28,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:28,820 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] [2024-11-16 09:42:28,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:42:28,821 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:28,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash 79934437, now seen corresponding path program 1 times [2024-11-16 09:42:28,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:28,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532384460] [2024-11-16 09:42:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:28,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:42:28,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:28,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532384460] [2024-11-16 09:42:28,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532384460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:28,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:28,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:28,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709551114] [2024-11-16 09:42:28,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:28,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:28,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:28,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:28,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:28,987 INFO L87 Difference]: Start difference. First operand 12879 states and 18159 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 09:42:29,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:29,430 INFO L93 Difference]: Finished difference Result 28129 states and 39547 transitions. [2024-11-16 09:42:29,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:29,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 81 [2024-11-16 09:42:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:29,478 INFO L225 Difference]: With dead ends: 28129 [2024-11-16 09:42:29,478 INFO L226 Difference]: Without dead ends: 24894 [2024-11-16 09:42:29,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:29,495 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 6430 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6430 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:29,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6430 Valid, 3573 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:29,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24894 states. [2024-11-16 09:42:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24894 to 16111. [2024-11-16 09:42:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16111 states, 16109 states have (on average 1.4053634614190824) internal successors, (22639), 16110 states have internal predecessors, (22639), 0 states have call successors, (0), 0 states 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 09:42:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16111 states to 16111 states and 22639 transitions. [2024-11-16 09:42:29,986 INFO L78 Accepts]: Start accepts. Automaton has 16111 states and 22639 transitions. Word has length 81 [2024-11-16 09:42:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:29,986 INFO L471 AbstractCegarLoop]: Abstraction has 16111 states and 22639 transitions. [2024-11-16 09:42:29,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 09:42:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 16111 states and 22639 transitions. [2024-11-16 09:42:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:29,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:29,989 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] [2024-11-16 09:42:29,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:42:29,990 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:29,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2123430107, now seen corresponding path program 1 times [2024-11-16 09:42:29,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462176548] [2024-11-16 09:42:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:42:30,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:30,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462176548] [2024-11-16 09:42:30,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462176548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:30,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:30,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:30,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092389456] [2024-11-16 09:42:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:30,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:30,154 INFO L87 Difference]: Start difference. First operand 16111 states and 22639 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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 09:42:30,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:30,669 INFO L93 Difference]: Finished difference Result 31361 states and 44027 transitions. [2024-11-16 09:42:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:30,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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 81 [2024-11-16 09:42:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:30,720 INFO L225 Difference]: With dead ends: 31361 [2024-11-16 09:42:30,721 INFO L226 Difference]: Without dead ends: 28126 [2024-11-16 09:42:30,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:30,735 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 6370 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6370 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:30,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6370 Valid, 3652 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28126 states. [2024-11-16 09:42:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28126 to 19343. [2024-11-16 09:42:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19343 states, 19341 states have (on average 1.4021508712062458) internal successors, (27119), 19342 states have internal predecessors, (27119), 0 states have call successors, (0), 0 states 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 09:42:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19343 states to 19343 states and 27119 transitions. [2024-11-16 09:42:31,255 INFO L78 Accepts]: Start accepts. Automaton has 19343 states and 27119 transitions. Word has length 81 [2024-11-16 09:42:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:31,255 INFO L471 AbstractCegarLoop]: Abstraction has 19343 states and 27119 transitions. [2024-11-16 09:42:31,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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 09:42:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 19343 states and 27119 transitions. [2024-11-16 09:42:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:42:31,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:31,259 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] [2024-11-16 09:42:31,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:42:31,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:31,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1214540089, now seen corresponding path program 1 times [2024-11-16 09:42:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:31,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399971666] [2024-11-16 09:42:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:31,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:31,372 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 09:42:31,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399971666] [2024-11-16 09:42:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399971666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:31,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:31,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894654231] [2024-11-16 09:42:31,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:31,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:31,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:31,375 INFO L87 Difference]: Start difference. First operand 19343 states and 27119 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:31,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:31,598 INFO L93 Difference]: Finished difference Result 32043 states and 44922 transitions. [2024-11-16 09:42:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:31,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-16 09:42:31,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:31,628 INFO L225 Difference]: With dead ends: 32043 [2024-11-16 09:42:31,629 INFO L226 Difference]: Without dead ends: 14248 [2024-11-16 09:42:31,647 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 09:42:31,648 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 51 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3129 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 09:42:31,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3129 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14248 states. [2024-11-16 09:42:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14248 to 14245. [2024-11-16 09:42:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14245 states, 14243 states have (on average 1.4101663975286105) internal successors, (20085), 14244 states have internal predecessors, (20085), 0 states have call successors, (0), 0 states 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 09:42:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14245 states to 14245 states and 20085 transitions. [2024-11-16 09:42:32,151 INFO L78 Accepts]: Start accepts. Automaton has 14245 states and 20085 transitions. Word has length 83 [2024-11-16 09:42:32,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:32,152 INFO L471 AbstractCegarLoop]: Abstraction has 14245 states and 20085 transitions. [2024-11-16 09:42:32,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:32,152 INFO L276 IsEmpty]: Start isEmpty. Operand 14245 states and 20085 transitions. [2024-11-16 09:42:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:42:32,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:32,154 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] [2024-11-16 09:42:32,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:42:32,155 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:32,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1289224187, now seen corresponding path program 1 times [2024-11-16 09:42:32,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:32,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555592580] [2024-11-16 09:42:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:42:32,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:32,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555592580] [2024-11-16 09:42:32,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555592580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:32,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:32,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:32,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843137057] [2024-11-16 09:42:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:32,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:32,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:32,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:32,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:32,349 INFO L87 Difference]: Start difference. First operand 14245 states and 20085 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:42:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:32,899 INFO L93 Difference]: Finished difference Result 25783 states and 36257 transitions. [2024-11-16 09:42:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:32,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 83 [2024-11-16 09:42:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:32,950 INFO L225 Difference]: With dead ends: 25783 [2024-11-16 09:42:32,951 INFO L226 Difference]: Without dead ends: 23476 [2024-11-16 09:42:32,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:32,964 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 6369 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6369 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:32,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6369 Valid, 3786 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:32,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23476 states. [2024-11-16 09:42:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23476 to 16549. [2024-11-16 09:42:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16549 states, 16547 states have (on average 1.4072037227291956) internal successors, (23285), 16548 states have internal predecessors, (23285), 0 states have call successors, (0), 0 states 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 09:42:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16549 states to 16549 states and 23285 transitions. [2024-11-16 09:42:33,373 INFO L78 Accepts]: Start accepts. Automaton has 16549 states and 23285 transitions. Word has length 83 [2024-11-16 09:42:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:33,375 INFO L471 AbstractCegarLoop]: Abstraction has 16549 states and 23285 transitions. [2024-11-16 09:42:33,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 09:42:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 16549 states and 23285 transitions. [2024-11-16 09:42:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:42:33,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:33,382 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] [2024-11-16 09:42:33,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:42:33,382 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:33,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 295498087, now seen corresponding path program 1 times [2024-11-16 09:42:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740735984] [2024-11-16 09:42:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:33,498 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 09:42:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740735984] [2024-11-16 09:42:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740735984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:33,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:33,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627630159] [2024-11-16 09:42:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:33,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:33,552 INFO L87 Difference]: Start difference. First operand 16549 states and 23285 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 09:42:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:33,704 INFO L93 Difference]: Finished difference Result 24043 states and 33689 transitions. [2024-11-16 09:42:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:33,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-16 09:42:33,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:33,721 INFO L225 Difference]: With dead ends: 24043 [2024-11-16 09:42:33,721 INFO L226 Difference]: Without dead ends: 9064 [2024-11-16 09:42:33,735 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 09:42:33,736 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 44 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3114 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 09:42:33,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3114 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9064 states. [2024-11-16 09:42:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9064 to 9061. [2024-11-16 09:42:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9061 states, 9059 states have (on average 1.4108621260624794) internal successors, (12781), 9060 states have internal predecessors, (12781), 0 states have call successors, (0), 0 states 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 09:42:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 12781 transitions. [2024-11-16 09:42:33,916 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 12781 transitions. Word has length 85 [2024-11-16 09:42:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 9061 states and 12781 transitions. [2024-11-16 09:42:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 09:42:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 12781 transitions. [2024-11-16 09:42:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:42:33,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:33,919 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] [2024-11-16 09:42:33,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:42:33,920 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:33,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1449445975, now seen corresponding path program 1 times [2024-11-16 09:42:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528682069] [2024-11-16 09:42:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528682069] [2024-11-16 09:42:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528682069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:34,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:34,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536157501] [2024-11-16 09:42:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:34,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:34,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:34,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:34,025 INFO L87 Difference]: Start difference. First operand 9061 states and 12781 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 09:42:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:34,118 INFO L93 Difference]: Finished difference Result 12811 states and 17933 transitions. [2024-11-16 09:42:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:34,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-16 09:42:34,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:34,128 INFO L225 Difference]: With dead ends: 12811 [2024-11-16 09:42:34,129 INFO L226 Difference]: Without dead ends: 5320 [2024-11-16 09:42:34,136 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 09:42:34,137 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 39 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3099 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 09:42:34,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3099 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5320 states. [2024-11-16 09:42:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5320 to 5317. [2024-11-16 09:42:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5315 states have (on average 1.426340545625588) internal successors, (7581), 5316 states have internal predecessors, (7581), 0 states have call successors, (0), 0 states 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 09:42:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 7581 transitions. [2024-11-16 09:42:34,236 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 7581 transitions. Word has length 87 [2024-11-16 09:42:34,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:34,237 INFO L471 AbstractCegarLoop]: Abstraction has 5317 states and 7581 transitions. [2024-11-16 09:42:34,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 09:42:34,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 7581 transitions. [2024-11-16 09:42:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 09:42:34,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:34,239 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] [2024-11-16 09:42:34,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:42:34,239 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:34,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1099430416, now seen corresponding path program 1 times [2024-11-16 09:42:34,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:34,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668577923] [2024-11-16 09:42:34,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:34,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:34,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668577923] [2024-11-16 09:42:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668577923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:34,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395378129] [2024-11-16 09:42:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:34,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:34,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:34,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:34,381 INFO L87 Difference]: Start difference. First operand 5317 states and 7581 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 09:42:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:34,435 INFO L93 Difference]: Finished difference Result 7195 states and 10133 transitions. [2024-11-16 09:42:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-16 09:42:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:34,443 INFO L225 Difference]: With dead ends: 7195 [2024-11-16 09:42:34,444 INFO L226 Difference]: Without dead ends: 3448 [2024-11-16 09:42:34,449 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 09:42:34,450 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 36 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3084 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 09:42:34,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2024-11-16 09:42:34,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3445. [2024-11-16 09:42:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3443 states have (on average 1.4542550101655534) internal successors, (5007), 3444 states have internal predecessors, (5007), 0 states have call successors, (0), 0 states 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 09:42:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5007 transitions. [2024-11-16 09:42:34,515 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5007 transitions. Word has length 89 [2024-11-16 09:42:34,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:34,515 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5007 transitions. [2024-11-16 09:42:34,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 09:42:34,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5007 transitions. [2024-11-16 09:42:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 09:42:34,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:34,517 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] [2024-11-16 09:42:34,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:42:34,518 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:34,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2136645527, now seen corresponding path program 1 times [2024-11-16 09:42:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:34,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911884524] [2024-11-16 09:42:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:34,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:34,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:34,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911884524] [2024-11-16 09:42:34,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911884524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:34,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:34,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:34,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002208432] [2024-11-16 09:42:34,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:34,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:34,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:34,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:34,647 INFO L87 Difference]: Start difference. First operand 3445 states and 5007 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 09:42:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:34,686 INFO L93 Difference]: Finished difference Result 4387 states and 6272 transitions. [2024-11-16 09:42:34,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:34,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-16 09:42:34,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:34,692 INFO L225 Difference]: With dead ends: 4387 [2024-11-16 09:42:34,692 INFO L226 Difference]: Without dead ends: 2512 [2024-11-16 09:42:34,695 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 09:42:34,695 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 33 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3069 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 09:42:34,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:34,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-16 09:42:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2509. [2024-11-16 09:42:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2507 states have (on average 1.4890307140007977) internal successors, (3733), 2508 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states 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 09:42:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3733 transitions. [2024-11-16 09:42:34,734 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3733 transitions. Word has length 91 [2024-11-16 09:42:34,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:34,735 INFO L471 AbstractCegarLoop]: Abstraction has 2509 states and 3733 transitions. [2024-11-16 09:42:34,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 09:42:34,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3733 transitions. [2024-11-16 09:42:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 09:42:34,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:34,737 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:34,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:42:34,737 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:34,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:34,738 INFO L85 PathProgramCache]: Analyzing trace with hash 648648254, now seen corresponding path program 1 times [2024-11-16 09:42:34,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:34,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718635983] [2024-11-16 09:42:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:35,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718635983] [2024-11-16 09:42:35,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718635983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:42:35,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208377559] [2024-11-16 09:42:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:35,129 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 09:42:35,131 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 09:42:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:35,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:42:35,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:42:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:35,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:42:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:37,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208377559] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:42:37,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:42:37,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:42:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259413962] [2024-11-16 09:42:37,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:42:37,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:42:37,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:42:37,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:42:37,149 INFO L87 Difference]: Start difference. First operand 2509 states and 3733 transitions. Second operand has 25 states, 25 states have (on average 10.44) internal successors, (261), 24 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 09:42:38,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:38,565 INFO L93 Difference]: Finished difference Result 6534 states and 9103 transitions. [2024-11-16 09:42:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:42:38,565 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.44) internal successors, (261), 24 states have internal predecessors, (261), 0 states have call successors, (0), 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 93 [2024-11-16 09:42:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:38,576 INFO L225 Difference]: With dead ends: 6534 [2024-11-16 09:42:38,576 INFO L226 Difference]: Without dead ends: 5595 [2024-11-16 09:42:38,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=611, Invalid=2469, Unknown=0, NotChecked=0, Total=3080 [2024-11-16 09:42:38,580 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 19102 mSDsluCounter, 6531 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19102 SdHoareTripleChecker+Valid, 8039 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:38,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19102 Valid, 8039 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:42:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2024-11-16 09:42:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5525. [2024-11-16 09:42:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5523 states have (on average 1.3820387470577584) internal successors, (7633), 5524 states have internal predecessors, (7633), 0 states have call successors, (0), 0 states 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 09:42:38,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 7633 transitions. [2024-11-16 09:42:38,695 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 7633 transitions. Word has length 93 [2024-11-16 09:42:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:38,696 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 7633 transitions. [2024-11-16 09:42:38,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.44) internal successors, (261), 24 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 09:42:38,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 7633 transitions. [2024-11-16 09:42:38,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 09:42:38,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:38,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:38,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 09:42:38,899 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,SelfDestructingSolverStorable22 [2024-11-16 09:42:38,900 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:38,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:38,900 INFO L85 PathProgramCache]: Analyzing trace with hash -546060386, now seen corresponding path program 1 times [2024-11-16 09:42:38,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:38,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487308827] [2024-11-16 09:42:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:38,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:39,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487308827] [2024-11-16 09:42:39,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487308827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:42:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326589398] [2024-11-16 09:42:39,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:39,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:39,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:39,715 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 09:42:39,716 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 09:42:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:39,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 09:42:39,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:42:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:40,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:42:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326589398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:42:41,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:42:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-11-16 09:42:41,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735950252] [2024-11-16 09:42:41,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:42:41,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 09:42:41,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 09:42:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2024-11-16 09:42:41,138 INFO L87 Difference]: Start difference. First operand 5525 states and 7633 transitions. Second operand has 27 states, 27 states have (on average 8.407407407407407) internal successors, (227), 26 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 09:42:41,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:41,708 INFO L93 Difference]: Finished difference Result 13750 states and 18403 transitions. [2024-11-16 09:42:41,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:42:41,709 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.407407407407407) internal successors, (227), 26 states have internal predecessors, (227), 0 states have call successors, (0), 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 93 [2024-11-16 09:42:41,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:41,720 INFO L225 Difference]: With dead ends: 13750 [2024-11-16 09:42:41,720 INFO L226 Difference]: Without dead ends: 9795 [2024-11-16 09:42:41,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 09:42:41,729 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 18386 mSDsluCounter, 4790 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18386 SdHoareTripleChecker+Valid, 6310 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:41,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18386 Valid, 6310 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:42:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9795 states. [2024-11-16 09:42:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9795 to 9685. [2024-11-16 09:42:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9685 states, 9683 states have (on average 1.3360528761747392) internal successors, (12937), 9684 states have internal predecessors, (12937), 0 states have call successors, (0), 0 states 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 09:42:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9685 states to 9685 states and 12937 transitions. [2024-11-16 09:42:41,941 INFO L78 Accepts]: Start accepts. Automaton has 9685 states and 12937 transitions. Word has length 93 [2024-11-16 09:42:41,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:41,941 INFO L471 AbstractCegarLoop]: Abstraction has 9685 states and 12937 transitions. [2024-11-16 09:42:41,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.407407407407407) internal successors, (227), 26 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 09:42:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9685 states and 12937 transitions. [2024-11-16 09:42:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:42:41,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:41,944 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:41,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:42:42,148 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,SelfDestructingSolverStorable23 [2024-11-16 09:42:42,149 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:42,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash -990916156, now seen corresponding path program 1 times [2024-11-16 09:42:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:42,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168626438] [2024-11-16 09:42:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:42,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:42,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:42,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168626438] [2024-11-16 09:42:42,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168626438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:42:42,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435745621] [2024-11-16 09:42:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:42,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:42,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:42,501 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 09:42:42,502 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 09:42:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:42,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 09:42:42,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:42:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:44,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:42:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:45,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435745621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:42:45,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:42:45,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 29 [2024-11-16 09:42:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98003371] [2024-11-16 09:42:45,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:42:45,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 09:42:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 09:42:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2024-11-16 09:42:45,051 INFO L87 Difference]: Start difference. First operand 9685 states and 12937 transitions. Second operand has 30 states, 30 states have (on average 8.466666666666667) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states 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 09:42:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:50,001 INFO L93 Difference]: Finished difference Result 60598 states and 78743 transitions. [2024-11-16 09:42:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-16 09:42:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.466666666666667) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 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 09:42:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:50,058 INFO L225 Difference]: With dead ends: 60598 [2024-11-16 09:42:50,059 INFO L226 Difference]: Without dead ends: 52483 [2024-11-16 09:42:50,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2140 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1586, Invalid=6424, Unknown=0, NotChecked=0, Total=8010 [2024-11-16 09:42:50,079 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 17668 mSDsluCounter, 8599 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17668 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:50,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17668 Valid, 10154 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:42:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52483 states. [2024-11-16 09:42:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52483 to 52037. [2024-11-16 09:42:51,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52037 states, 52035 states have (on average 1.2813875276256366) internal successors, (66677), 52036 states have internal predecessors, (66677), 0 states have call successors, (0), 0 states 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 09:42:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52037 states to 52037 states and 66677 transitions. [2024-11-16 09:42:51,291 INFO L78 Accepts]: Start accepts. Automaton has 52037 states and 66677 transitions. Word has length 94 [2024-11-16 09:42:51,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:51,292 INFO L471 AbstractCegarLoop]: Abstraction has 52037 states and 66677 transitions. [2024-11-16 09:42:51,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.466666666666667) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states 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 09:42:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 52037 states and 66677 transitions. [2024-11-16 09:42:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:42:51,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:51,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:51,316 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 09:42:51,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:51,499 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:51,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1927534653, now seen corresponding path program 1 times [2024-11-16 09:42:51,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:51,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496450862] [2024-11-16 09:42:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:51,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:52,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:52,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496450862] [2024-11-16 09:42:52,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496450862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:42:52,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316280384] [2024-11-16 09:42:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:52,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:52,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:52,667 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 09:42:52,668 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 09:42:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:52,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-16 09:42:52,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:42:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:54,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:42:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:57,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316280384] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:42:57,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:42:57,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 21] total 49 [2024-11-16 09:42:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104716005] [2024-11-16 09:42:57,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:42:57,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-16 09:42:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:57,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-16 09:42:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2024-11-16 09:42:57,209 INFO L87 Difference]: Start difference. First operand 52037 states and 66677 transitions. Second operand has 49 states, 49 states have (on average 5.285714285714286) internal successors, (259), 49 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)