./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.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_overflow.ufo.UNBOUNDED.pals+Problem12_label02.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 2d5ef49da8a464b4b8c9ada6da6f38848fd0a828ef607f1296d8e73281f8aa1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:42:50,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:42:50,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:42:50,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:42:50,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:42:50,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:42:50,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:42:50,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:42:50,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:42:50,534 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:42:50,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:42:50,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:42:50,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:42:50,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:42:50,536 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:42:50,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:42:50,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:42:50,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:42:50,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:42:50,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:42:50,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:42:50,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:42:50,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:42:50,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:42:50,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:42:50,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:42:50,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:42:50,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:42:50,543 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:42:50,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:42:50,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:42:50,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:42:50,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:50,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:42:50,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:42:50,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:42:50,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:42:50,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:42:50,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:42:50,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:42:50,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:42:50,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:42:50,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5ef49da8a464b4b8c9ada6da6f38848fd0a828ef607f1296d8e73281f8aa1e [2024-11-16 09:42:50,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:42:50,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:42:50,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:42:50,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:42:50,766 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:42:50,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:42:52,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:42:52,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:42:52,383 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:42:52,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371a1668e/78e0d0244e2843ae99ea515f21265cc3/FLAGc57149e2f [2024-11-16 09:42:52,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371a1668e/78e0d0244e2843ae99ea515f21265cc3 [2024-11-16 09:42:52,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:42:52,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:42:52,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:52,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:42:52,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:42:52,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:52" (1/1) ... [2024-11-16 09:42:52,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13613ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:52, skipping insertion in model container [2024-11-16 09:42:52,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:52" (1/1) ... [2024-11-16 09:42:52,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:42:52,817 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_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2024-11-16 09:42:52,868 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_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2024-11-16 09:42:53,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:53,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:42:53,391 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_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2024-11-16 09:42:53,399 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_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2024-11-16 09:42:53,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:53,802 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:42:53,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53 WrapperNode [2024-11-16 09:42:53,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:53,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:53,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:42:53,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:42:53,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:53,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,132 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5093 [2024-11-16 09:42:54,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:54,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:42:54,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:42:54,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:42:54,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,391 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 09:42:54,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,501 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:42:54,596 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:42:54,596 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:42:54,597 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:42:54,597 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (1/1) ... [2024-11-16 09:42:54,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:54,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:54,645 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 09:42:54,650 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 09:42:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:42:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:42:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:42:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:42:54,799 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:42:54,802 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:42:57,956 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2128: havoc calculate_output_#t~ret37#1; [2024-11-16 09:42:57,957 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3607: havoc calculate_output2_#t~ret38#1; [2024-11-16 09:42:57,957 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5097: havoc calculate_output3_#t~ret39#1; [2024-11-16 09:42:58,227 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-16 09:42:58,228 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:42:58,268 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:42:58,269 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:42:58,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:58 BoogieIcfgContainer [2024-11-16 09:42:58,273 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:42:58,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:42:58,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:42:58,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:42:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:42:52" (1/3) ... [2024-11-16 09:42:58,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3859bcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:58, skipping insertion in model container [2024-11-16 09:42:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:53" (2/3) ... [2024-11-16 09:42:58,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3859bcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:58, skipping insertion in model container [2024-11-16 09:42:58,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:58" (3/3) ... [2024-11-16 09:42:58,283 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:42:58,307 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:42:58,307 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:42:58,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:42:58,432 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;@944f06f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:42:58,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:42:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 906 states, 903 states have (on average 1.8981173864894796) internal successors, (1714), 905 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states 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 09:42:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:58,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:58,455 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 09:42:58,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:58,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1666129978, now seen corresponding path program 1 times [2024-11-16 09:42:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:58,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105270329] [2024-11-16 09:42:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:58,646 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 09:42:58,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:58,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105270329] [2024-11-16 09:42:58,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105270329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:58,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:58,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:42:58,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779648154] [2024-11-16 09:42:58,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:42:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:58,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:42:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:42:58,671 INFO L87 Difference]: Start difference. First operand has 906 states, 903 states have (on average 1.8981173864894796) internal successors, (1714), 905 states have internal predecessors, (1714), 0 states have call successors, (0), 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 09:42:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:58,735 INFO L93 Difference]: Finished difference Result 1771 states and 3354 transitions. [2024-11-16 09:42:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:42:58,737 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 09:42:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:58,749 INFO L225 Difference]: With dead ends: 1771 [2024-11-16 09:42:58,750 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 09:42:58,754 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 09:42:58,757 INFO L432 NwaCegarLoop]: 1643 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, 1643 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 09:42:58,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 09:42:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-16 09:42:58,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.888755980861244) internal successors, (1579), 837 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states 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 09:42:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1579 transitions. [2024-11-16 09:42:58,814 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1579 transitions. Word has length 26 [2024-11-16 09:42:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:58,814 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1579 transitions. [2024-11-16 09:42:58,814 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 09:42:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1579 transitions. [2024-11-16 09:42:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:58,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:58,816 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 09:42:58,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:42:58,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:58,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1257305753, now seen corresponding path program 1 times [2024-11-16 09:42:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984795715] [2024-11-16 09:42:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:58,994 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 09:42:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984795715] [2024-11-16 09:42:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984795715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:58,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:58,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:42:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863641878] [2024-11-16 09:42:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:58,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:42:58,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:58,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:42:58,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:42:58,997 INFO L87 Difference]: Start difference. First operand 838 states and 1579 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 09:42:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:59,066 INFO L93 Difference]: Finished difference Result 887 states and 1653 transitions. [2024-11-16 09:42:59,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:42:59,067 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 09:42:59,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:59,069 INFO L225 Difference]: With dead ends: 887 [2024-11-16 09:42:59,069 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 09:42:59,070 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 09:42:59,070 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 4695 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:59,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6272 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 09:42:59,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-16 09:42:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.8516746411483254) internal successors, (1548), 837 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states 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 09:42:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1548 transitions. [2024-11-16 09:42:59,084 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1548 transitions. Word has length 26 [2024-11-16 09:42:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:59,084 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1548 transitions. [2024-11-16 09:42:59,085 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 09:42:59,085 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1548 transitions. [2024-11-16 09:42:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 09:42:59,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:59,086 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 09:42:59,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:42:59,086 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:59,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:59,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2143625797, now seen corresponding path program 1 times [2024-11-16 09:42:59,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:59,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168244612] [2024-11-16 09:42:59,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:59,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:59,328 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 09:42:59,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:59,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168244612] [2024-11-16 09:42:59,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168244612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:59,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:59,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:59,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942480892] [2024-11-16 09:42:59,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:59,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:59,332 INFO L87 Difference]: Start difference. First operand 838 states and 1548 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 09:42:59,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:59,537 INFO L93 Difference]: Finished difference Result 1288 states and 2248 transitions. [2024-11-16 09:42:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:42:59,538 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 09:42:59,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:59,542 INFO L225 Difference]: With dead ends: 1288 [2024-11-16 09:42:59,542 INFO L226 Difference]: Without dead ends: 1243 [2024-11-16 09:42:59,543 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 09:42:59,545 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 7986 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7986 SdHoareTripleChecker+Valid, 2698 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 09:42:59,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7986 Valid, 2698 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2024-11-16 09:42:59,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 880. [2024-11-16 09:42:59,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8382687927107062) internal successors, (1614), 879 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states 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 09:42:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1614 transitions. [2024-11-16 09:42:59,563 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1614 transitions. Word has length 56 [2024-11-16 09:42:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:59,564 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1614 transitions. [2024-11-16 09:42:59,564 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 09:42:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1614 transitions. [2024-11-16 09:42:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 09:42:59,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:59,567 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 09:42:59,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:42:59,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:59,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash -445695587, now seen corresponding path program 1 times [2024-11-16 09:42:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:59,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325711361] [2024-11-16 09:42:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:59,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:59,799 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 09:42:59,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:59,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325711361] [2024-11-16 09:42:59,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325711361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:59,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:59,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950272228] [2024-11-16 09:42:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:59,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:59,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:59,801 INFO L87 Difference]: Start difference. First operand 880 states and 1614 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 09:42:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:59,972 INFO L93 Difference]: Finished difference Result 970 states and 1752 transitions. [2024-11-16 09:42:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:59,973 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 09:42:59,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:59,975 INFO L225 Difference]: With dead ends: 970 [2024-11-16 09:42:59,976 INFO L226 Difference]: Without dead ends: 883 [2024-11-16 09:42:59,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:42:59,978 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 4491 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4491 SdHoareTripleChecker+Valid, 1806 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 09:42:59,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4491 Valid, 1806 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:59,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-16 09:42:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 880. [2024-11-16 09:42:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8371298405466971) internal successors, (1613), 879 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states 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 09:42:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1613 transitions. [2024-11-16 09:42:59,990 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1613 transitions. Word has length 58 [2024-11-16 09:42:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:59,991 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1613 transitions. [2024-11-16 09:42:59,991 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 09:42:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1613 transitions. [2024-11-16 09:42:59,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 09:42:59,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:59,994 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 09:42:59,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:42:59,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:59,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:59,995 INFO L85 PathProgramCache]: Analyzing trace with hash 792157896, now seen corresponding path program 1 times [2024-11-16 09:42:59,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:59,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205432304] [2024-11-16 09:42:59,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:59,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:00,096 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 09:43:00,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:00,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205432304] [2024-11-16 09:43:00,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205432304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:00,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:00,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:00,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171431011] [2024-11-16 09:43:00,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:00,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:00,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:00,098 INFO L87 Difference]: Start difference. First operand 880 states and 1613 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 09:43:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:00,146 INFO L93 Difference]: Finished difference Result 1042 states and 1863 transitions. [2024-11-16 09:43:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:00,150 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 09:43:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:00,153 INFO L225 Difference]: With dead ends: 1042 [2024-11-16 09:43:00,153 INFO L226 Difference]: Without dead ends: 955 [2024-11-16 09:43:00,153 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 09:43:00,154 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 1486 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:00,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1610 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:00,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-16 09:43:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 952. [2024-11-16 09:43:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 950 states have (on average 1.8136842105263158) internal successors, (1723), 951 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states 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 09:43:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1723 transitions. [2024-11-16 09:43:00,181 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1723 transitions. Word has length 59 [2024-11-16 09:43:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:00,182 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1723 transitions. [2024-11-16 09:43:00,182 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 09:43:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1723 transitions. [2024-11-16 09:43:00,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:00,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:00,182 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 09:43:00,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:43:00,183 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:00,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:00,183 INFO L85 PathProgramCache]: Analyzing trace with hash -771995553, now seen corresponding path program 1 times [2024-11-16 09:43:00,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:00,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852515470] [2024-11-16 09:43:00,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:00,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:00,265 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 09:43:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852515470] [2024-11-16 09:43:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852515470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:00,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:00,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:00,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503656014] [2024-11-16 09:43:00,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:00,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:00,266 INFO L87 Difference]: Start difference. First operand 952 states and 1723 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 09:43:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:00,311 INFO L93 Difference]: Finished difference Result 1254 states and 2185 transitions. [2024-11-16 09:43:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:00,311 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 09:43:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:00,314 INFO L225 Difference]: With dead ends: 1254 [2024-11-16 09:43:00,314 INFO L226 Difference]: Without dead ends: 1095 [2024-11-16 09:43:00,315 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 09:43:00,319 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1498 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1671 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 09:43:00,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-16 09:43:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1092. [2024-11-16 09:43:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1090 states have (on average 1.7743119266055045) internal successors, (1934), 1091 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states 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 09:43:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1934 transitions. [2024-11-16 09:43:00,333 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1934 transitions. Word has length 60 [2024-11-16 09:43:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:00,333 INFO L471 AbstractCegarLoop]: Abstraction has 1092 states and 1934 transitions. [2024-11-16 09:43:00,333 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 09:43:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1934 transitions. [2024-11-16 09:43:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:00,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:00,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:43:00,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:43:00,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:00,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1773405281, now seen corresponding path program 1 times [2024-11-16 09:43:00,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:00,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422494288] [2024-11-16 09:43:00,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:00,371 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 09:43:00,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422494288] [2024-11-16 09:43:00,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422494288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:00,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:00,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:00,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571095643] [2024-11-16 09:43:00,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:00,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:00,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:00,373 INFO L87 Difference]: Start difference. First operand 1092 states and 1934 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 09:43:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:00,395 INFO L93 Difference]: Finished difference Result 1658 states and 2790 transitions. [2024-11-16 09:43:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:00,395 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 09:43:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:00,399 INFO L225 Difference]: With dead ends: 1658 [2024-11-16 09:43:00,399 INFO L226 Difference]: Without dead ends: 1359 [2024-11-16 09:43:00,399 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 09:43:00,400 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 1496 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1673 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 09:43:00,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-16 09:43:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1356. [2024-11-16 09:43:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1354 states have (on average 1.7163958641063515) internal successors, (2324), 1355 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states 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 09:43:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2324 transitions. [2024-11-16 09:43:00,417 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2324 transitions. Word has length 60 [2024-11-16 09:43:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:00,418 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 2324 transitions. [2024-11-16 09:43:00,418 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 09:43:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2324 transitions. [2024-11-16 09:43:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:00,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:00,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:43:00,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:43:00,419 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:00,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:00,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1787855137, now seen corresponding path program 1 times [2024-11-16 09:43:00,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:00,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122438897] [2024-11-16 09:43:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:00,488 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 09:43:00,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:00,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122438897] [2024-11-16 09:43:00,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122438897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:00,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:00,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:00,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878283553] [2024-11-16 09:43:00,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:00,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:00,491 INFO L87 Difference]: Start difference. First operand 1356 states and 2324 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 09:43:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:00,536 INFO L93 Difference]: Finished difference Result 2418 states and 3904 transitions. [2024-11-16 09:43:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:00,536 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 09:43:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:00,545 INFO L225 Difference]: With dead ends: 2418 [2024-11-16 09:43:00,545 INFO L226 Difference]: Without dead ends: 1855 [2024-11-16 09:43:00,546 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 09:43:00,546 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 1494 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1675 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 09:43:00,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2024-11-16 09:43:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1852. [2024-11-16 09:43:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1850 states have (on average 1.6432432432432433) internal successors, (3040), 1851 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states 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 09:43:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 3040 transitions. [2024-11-16 09:43:00,598 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 3040 transitions. Word has length 60 [2024-11-16 09:43:00,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:00,598 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 3040 transitions. [2024-11-16 09:43:00,599 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 09:43:00,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 3040 transitions. [2024-11-16 09:43:00,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:00,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:00,599 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 09:43:00,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:43:00,600 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:00,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash 303747615, now seen corresponding path program 1 times [2024-11-16 09:43:00,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298663133] [2024-11-16 09:43:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:00,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:00,668 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 09:43:00,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:00,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298663133] [2024-11-16 09:43:00,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298663133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:00,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:00,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:00,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209909443] [2024-11-16 09:43:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:00,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:00,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:00,674 INFO L87 Difference]: Start difference. First operand 1852 states and 3040 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 09:43:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:00,735 INFO L93 Difference]: Finished difference Result 3842 states and 5940 transitions. [2024-11-16 09:43:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:00,736 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 09:43:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:00,745 INFO L225 Difference]: With dead ends: 3842 [2024-11-16 09:43:00,749 INFO L226 Difference]: Without dead ends: 2783 [2024-11-16 09:43:00,750 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 09:43:00,754 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 1492 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1677 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 09:43:00,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2024-11-16 09:43:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2780. [2024-11-16 09:43:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2778 states have (on average 1.5637149028077755) internal successors, (4344), 2779 states have internal predecessors, (4344), 0 states have call successors, (0), 0 states 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 09:43:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4344 transitions. [2024-11-16 09:43:00,881 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4344 transitions. Word has length 60 [2024-11-16 09:43:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:00,881 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 4344 transitions. [2024-11-16 09:43:00,881 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 09:43:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4344 transitions. [2024-11-16 09:43:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:00,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:00,882 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 09:43:00,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:43:00,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:00,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash -220529440, now seen corresponding path program 1 times [2024-11-16 09:43:00,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:00,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187239651] [2024-11-16 09:43:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:01,031 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 09:43:01,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:01,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187239651] [2024-11-16 09:43:01,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187239651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:01,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:01,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:01,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989758021] [2024-11-16 09:43:01,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:01,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:01,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:01,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:01,033 INFO L87 Difference]: Start difference. First operand 2780 states and 4344 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 09:43:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:01,097 INFO L93 Difference]: Finished difference Result 2879 states and 4474 transitions. [2024-11-16 09:43:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:01,098 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 09:43:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:01,104 INFO L225 Difference]: With dead ends: 2879 [2024-11-16 09:43:01,104 INFO L226 Difference]: Without dead ends: 2876 [2024-11-16 09:43:01,105 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 09:43:01,105 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 0 mSDsluCounter, 9239 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10781 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 09:43:01,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10781 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:01,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2024-11-16 09:43:01,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2876. [2024-11-16 09:43:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2874 states have (on average 1.5393180236604036) internal successors, (4424), 2875 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states 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 09:43:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4424 transitions. [2024-11-16 09:43:01,144 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4424 transitions. Word has length 60 [2024-11-16 09:43:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:01,144 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 4424 transitions. [2024-11-16 09:43:01,144 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 09:43:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4424 transitions. [2024-11-16 09:43:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:43:01,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:01,145 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 09:43:01,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:43:01,145 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:01,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:01,145 INFO L85 PathProgramCache]: Analyzing trace with hash -489921249, now seen corresponding path program 1 times [2024-11-16 09:43:01,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:01,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790879543] [2024-11-16 09:43:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:01,180 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 09:43:01,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:01,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790879543] [2024-11-16 09:43:01,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790879543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:01,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:01,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565143646] [2024-11-16 09:43:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:01,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:01,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:01,182 INFO L87 Difference]: Start difference. First operand 2876 states and 4424 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 09:43:01,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:01,222 INFO L93 Difference]: Finished difference Result 5125 states and 7632 transitions. [2024-11-16 09:43:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:01,223 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 09:43:01,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:01,231 INFO L225 Difference]: With dead ends: 5125 [2024-11-16 09:43:01,231 INFO L226 Difference]: Without dead ends: 3938 [2024-11-16 09:43:01,232 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 09:43:01,233 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1500 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1673 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 09:43:01,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:01,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2024-11-16 09:43:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3935. [2024-11-16 09:43:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3935 states, 3933 states have (on average 1.4958047292143402) internal successors, (5883), 3934 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states 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 09:43:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 5883 transitions. [2024-11-16 09:43:01,287 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 5883 transitions. Word has length 60 [2024-11-16 09:43:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:01,287 INFO L471 AbstractCegarLoop]: Abstraction has 3935 states and 5883 transitions. [2024-11-16 09:43:01,287 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 09:43:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 5883 transitions. [2024-11-16 09:43:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 09:43:01,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:01,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:43:01,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:43:01,288 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:01,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1134020029, now seen corresponding path program 1 times [2024-11-16 09:43:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:01,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458405443] [2024-11-16 09:43:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:01,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:01,373 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 09:43:01,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:01,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458405443] [2024-11-16 09:43:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458405443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:01,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:01,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464282293] [2024-11-16 09:43:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:01,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:43:01,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:01,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:43:01,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:43:01,375 INFO L87 Difference]: Start difference. First operand 3935 states and 5883 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:06,090 INFO L93 Difference]: Finished difference Result 6194 states and 10196 transitions. [2024-11-16 09:43:06,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:43:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 09:43:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:06,104 INFO L225 Difference]: With dead ends: 6194 [2024-11-16 09:43:06,105 INFO L226 Difference]: Without dead ends: 5439 [2024-11-16 09:43:06,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:43:06,106 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 2409 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:06,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 825 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-16 09:43:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2024-11-16 09:43:06,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5439. [2024-11-16 09:43:06,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5437 states have (on average 1.4458340996873276) internal successors, (7861), 5438 states have internal predecessors, (7861), 0 states have call successors, (0), 0 states 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 09:43:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7861 transitions. [2024-11-16 09:43:06,222 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7861 transitions. Word has length 65 [2024-11-16 09:43:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:06,222 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 7861 transitions. [2024-11-16 09:43:06,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:06,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7861 transitions. [2024-11-16 09:43:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:43:06,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:06,225 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 09:43:06,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:43:06,225 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:06,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:06,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1750020549, now seen corresponding path program 1 times [2024-11-16 09:43:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:06,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717432380] [2024-11-16 09:43:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:06,390 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 09:43:06,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:06,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717432380] [2024-11-16 09:43:06,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717432380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:06,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:06,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:43:06,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682162214] [2024-11-16 09:43:06,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:06,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:43:06,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:06,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:43:06,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:43:06,392 INFO L87 Difference]: Start difference. First operand 5439 states and 7861 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 09:43:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:06,747 INFO L93 Difference]: Finished difference Result 21825 states and 30785 transitions. [2024-11-16 09:43:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:43:06,748 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 09:43:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:06,777 INFO L225 Difference]: With dead ends: 21825 [2024-11-16 09:43:06,777 INFO L226 Difference]: Without dead ends: 18686 [2024-11-16 09:43:06,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:43:06,785 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 6339 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3641 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 09:43:06,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3641 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18686 states. [2024-11-16 09:43:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18686 to 8575. [2024-11-16 09:43:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8575 states, 8573 states have (on average 1.4245888253820134) internal successors, (12213), 8574 states have internal predecessors, (12213), 0 states have call successors, (0), 0 states 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 09:43:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 12213 transitions. [2024-11-16 09:43:06,961 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 12213 transitions. Word has length 81 [2024-11-16 09:43:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:06,961 INFO L471 AbstractCegarLoop]: Abstraction has 8575 states and 12213 transitions. [2024-11-16 09:43:06,961 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 09:43:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 12213 transitions. [2024-11-16 09:43:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:43:06,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:06,963 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 09:43:06,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:43:06,963 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:06,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 748610821, now seen corresponding path program 1 times [2024-11-16 09:43:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:06,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039713481] [2024-11-16 09:43:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:07,127 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 09:43:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039713481] [2024-11-16 09:43:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039713481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:43:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980118982] [2024-11-16 09:43:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:07,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:43:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:07,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:43:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:43:07,129 INFO L87 Difference]: Start difference. First operand 8575 states and 12213 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 09:43:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:07,445 INFO L93 Difference]: Finished difference Result 24961 states and 35137 transitions. [2024-11-16 09:43:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:43:07,446 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 09:43:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:07,478 INFO L225 Difference]: With dead ends: 24961 [2024-11-16 09:43:07,479 INFO L226 Difference]: Without dead ends: 21822 [2024-11-16 09:43:07,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:43:07,490 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 6363 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6363 SdHoareTripleChecker+Valid, 3576 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 09:43:07,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6363 Valid, 3576 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21822 states. [2024-11-16 09:43:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21822 to 13295. [2024-11-16 09:43:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13295 states, 13293 states have (on average 1.4074324832618672) internal successors, (18709), 13294 states have internal predecessors, (18709), 0 states have call successors, (0), 0 states 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 09:43:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13295 states to 13295 states and 18709 transitions. [2024-11-16 09:43:07,772 INFO L78 Accepts]: Start accepts. Automaton has 13295 states and 18709 transitions. Word has length 81 [2024-11-16 09:43:07,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:07,772 INFO L471 AbstractCegarLoop]: Abstraction has 13295 states and 18709 transitions. [2024-11-16 09:43:07,773 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 09:43:07,773 INFO L276 IsEmpty]: Start isEmpty. Operand 13295 states and 18709 transitions. [2024-11-16 09:43:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:43:07,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:07,774 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 09:43:07,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:43:07,775 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:07,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:07,775 INFO L85 PathProgramCache]: Analyzing trace with hash 734160965, now seen corresponding path program 1 times [2024-11-16 09:43:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:07,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063541603] [2024-11-16 09:43:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:07,881 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 09:43:07,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:07,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063541603] [2024-11-16 09:43:07,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063541603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:07,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:07,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:43:07,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585679171] [2024-11-16 09:43:07,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:07,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:43:07,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:07,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:43:07,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:43:07,883 INFO L87 Difference]: Start difference. First operand 13295 states and 18709 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 09:43:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:08,316 INFO L93 Difference]: Finished difference Result 28097 states and 39489 transitions. [2024-11-16 09:43:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:43:08,317 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 09:43:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:08,351 INFO L225 Difference]: With dead ends: 28097 [2024-11-16 09:43:08,351 INFO L226 Difference]: Without dead ends: 24958 [2024-11-16 09:43:08,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:43:08,364 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 6398 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6398 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:08,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6398 Valid, 3587 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:08,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24958 states. [2024-11-16 09:43:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24958 to 16431. [2024-11-16 09:43:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16431 states, 16429 states have (on average 1.4036764258323695) internal successors, (23061), 16430 states have internal predecessors, (23061), 0 states have call successors, (0), 0 states 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 09:43:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16431 states to 16431 states and 23061 transitions. [2024-11-16 09:43:08,692 INFO L78 Accepts]: Start accepts. Automaton has 16431 states and 23061 transitions. Word has length 81 [2024-11-16 09:43:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:08,692 INFO L471 AbstractCegarLoop]: Abstraction has 16431 states and 23061 transitions. [2024-11-16 09:43:08,692 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 09:43:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 16431 states and 23061 transitions. [2024-11-16 09:43:08,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:43:08,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:08,694 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 09:43:08,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:43:08,694 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:08,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1469203579, now seen corresponding path program 1 times [2024-11-16 09:43:08,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:08,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684667061] [2024-11-16 09:43:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:08,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:08,812 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 09:43:08,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:08,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684667061] [2024-11-16 09:43:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684667061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:08,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:08,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:43:08,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877156521] [2024-11-16 09:43:08,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:08,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:43:08,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:08,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:43:08,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:43:08,813 INFO L87 Difference]: Start difference. First operand 16431 states and 23061 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 09:43:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:09,286 INFO L93 Difference]: Finished difference Result 31233 states and 43841 transitions. [2024-11-16 09:43:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:43:09,287 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 09:43:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:09,326 INFO L225 Difference]: With dead ends: 31233 [2024-11-16 09:43:09,327 INFO L226 Difference]: Without dead ends: 28094 [2024-11-16 09:43:09,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:43:09,336 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 6346 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6346 SdHoareTripleChecker+Valid, 3659 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 09:43:09,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6346 Valid, 3659 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28094 states. [2024-11-16 09:43:09,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28094 to 19567. [2024-11-16 09:43:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19567 states, 19565 states have (on average 1.4011244569384105) internal successors, (27413), 19566 states have internal predecessors, (27413), 0 states have call successors, (0), 0 states 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 09:43:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19567 states to 19567 states and 27413 transitions. [2024-11-16 09:43:09,884 INFO L78 Accepts]: Start accepts. Automaton has 19567 states and 27413 transitions. Word has length 81 [2024-11-16 09:43:09,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:09,884 INFO L471 AbstractCegarLoop]: Abstraction has 19567 states and 27413 transitions. [2024-11-16 09:43:09,885 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 09:43:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 19567 states and 27413 transitions. [2024-11-16 09:43:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:43:09,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:09,891 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 09:43:09,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:43:09,893 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:09,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:09,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2032094853, now seen corresponding path program 1 times [2024-11-16 09:43:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21690102] [2024-11-16 09:43:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:09,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:10,148 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 09:43:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21690102] [2024-11-16 09:43:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21690102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:10,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:43:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873499402] [2024-11-16 09:43:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:43:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:10,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:43:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:43:10,154 INFO L87 Difference]: Start difference. First operand 19567 states and 27413 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 09:43:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:11,125 INFO L93 Difference]: Finished difference Result 32577 states and 45729 transitions. [2024-11-16 09:43:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:43:11,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 09:43:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:11,174 INFO L225 Difference]: With dead ends: 32577 [2024-11-16 09:43:11,175 INFO L226 Difference]: Without dead ends: 30334 [2024-11-16 09:43:11,186 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 09:43:11,187 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 6329 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6329 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:11,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6329 Valid, 3765 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30334 states. [2024-11-16 09:43:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30334 to 21807. [2024-11-16 09:43:11,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21807 states, 21805 states have (on average 1.401008942903004) internal successors, (30549), 21806 states have internal predecessors, (30549), 0 states have call successors, (0), 0 states 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 09:43:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21807 states to 21807 states and 30549 transitions. [2024-11-16 09:43:11,813 INFO L78 Accepts]: Start accepts. Automaton has 21807 states and 30549 transitions. Word has length 81 [2024-11-16 09:43:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:11,814 INFO L471 AbstractCegarLoop]: Abstraction has 21807 states and 30549 transitions. [2024-11-16 09:43:11,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 09:43:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 21807 states and 30549 transitions. [2024-11-16 09:43:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:43:11,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:11,817 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 09:43:11,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:43:11,817 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:11,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash 431928103, now seen corresponding path program 1 times [2024-11-16 09:43:11,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:11,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833997626] [2024-11-16 09:43:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:11,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:11,888 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 09:43:11,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:11,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833997626] [2024-11-16 09:43:11,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833997626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:11,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:11,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:11,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967755872] [2024-11-16 09:43:11,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:11,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:11,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:11,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:11,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:11,890 INFO L87 Difference]: Start difference. First operand 21807 states and 30549 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 09:43:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:12,120 INFO L93 Difference]: Finished difference Result 36394 states and 50959 transitions. [2024-11-16 09:43:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:12,121 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 09:43:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:12,142 INFO L225 Difference]: With dead ends: 36394 [2024-11-16 09:43:12,142 INFO L226 Difference]: Without dead ends: 16887 [2024-11-16 09:43:12,160 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 09:43:12,161 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 48 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3126 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 09:43:12,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3126 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:12,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2024-11-16 09:43:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 16877. [2024-11-16 09:43:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16877 states, 16875 states have (on average 1.4015407407407408) internal successors, (23651), 16876 states have internal predecessors, (23651), 0 states have call successors, (0), 0 states 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 09:43:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16877 states to 16877 states and 23651 transitions. [2024-11-16 09:43:12,571 INFO L78 Accepts]: Start accepts. Automaton has 16877 states and 23651 transitions. Word has length 83 [2024-11-16 09:43:12,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:12,571 INFO L471 AbstractCegarLoop]: Abstraction has 16877 states and 23651 transitions. [2024-11-16 09:43:12,571 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 09:43:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 16877 states and 23651 transitions. [2024-11-16 09:43:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:43:12,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:12,574 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 09:43:12,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:43:12,574 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:12,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:12,575 INFO L85 PathProgramCache]: Analyzing trace with hash 922394599, now seen corresponding path program 1 times [2024-11-16 09:43:12,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:12,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985347874] [2024-11-16 09:43:12,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:12,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:12,642 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 09:43:12,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:12,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985347874] [2024-11-16 09:43:12,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985347874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:12,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:12,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:12,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603764490] [2024-11-16 09:43:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:12,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:12,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:12,644 INFO L87 Difference]: Start difference. First operand 16877 states and 23651 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 09:43:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:12,772 INFO L93 Difference]: Finished difference Result 24163 states and 33743 transitions. [2024-11-16 09:43:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:12,772 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 09:43:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:12,784 INFO L225 Difference]: With dead ends: 24163 [2024-11-16 09:43:12,784 INFO L226 Difference]: Without dead ends: 9600 [2024-11-16 09:43:12,796 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 09:43:12,797 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 43 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3111 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 09:43:12,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-11-16 09:43:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9597. [2024-11-16 09:43:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 1.4027097446586765) internal successors, (13459), 9596 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states 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 09:43:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 13459 transitions. [2024-11-16 09:43:12,959 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 13459 transitions. Word has length 83 [2024-11-16 09:43:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:12,960 INFO L471 AbstractCegarLoop]: Abstraction has 9597 states and 13459 transitions. [2024-11-16 09:43:12,960 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 09:43:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 13459 transitions. [2024-11-16 09:43:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:43:12,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:12,962 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] [2024-11-16 09:43:12,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:43:12,962 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:12,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash -297319383, now seen corresponding path program 1 times [2024-11-16 09:43:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:12,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093285771] [2024-11-16 09:43:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:13,039 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 09:43:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093285771] [2024-11-16 09:43:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093285771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:13,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:13,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:13,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230568923] [2024-11-16 09:43:13,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:13,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:13,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:13,040 INFO L87 Difference]: Start difference. First operand 9597 states and 13459 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 09:43:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:13,112 INFO L93 Difference]: Finished difference Result 13243 states and 18455 transitions. [2024-11-16 09:43:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:13,112 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 09:43:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:13,119 INFO L225 Difference]: With dead ends: 13243 [2024-11-16 09:43:13,119 INFO L226 Difference]: Without dead ends: 5960 [2024-11-16 09:43:13,124 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 09:43:13,125 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 38 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3096 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 09:43:13,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3096 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2024-11-16 09:43:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5957. [2024-11-16 09:43:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5957 states, 5955 states have (on average 1.4130982367758187) internal successors, (8415), 5956 states have internal predecessors, (8415), 0 states have call successors, (0), 0 states 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 09:43:13,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5957 states to 5957 states and 8415 transitions. [2024-11-16 09:43:13,258 INFO L78 Accepts]: Start accepts. Automaton has 5957 states and 8415 transitions. Word has length 85 [2024-11-16 09:43:13,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:13,258 INFO L471 AbstractCegarLoop]: Abstraction has 5957 states and 8415 transitions. [2024-11-16 09:43:13,258 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 09:43:13,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5957 states and 8415 transitions. [2024-11-16 09:43:13,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:43:13,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:13,260 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] [2024-11-16 09:43:13,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:43:13,260 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:13,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash 191522960, now seen corresponding path program 1 times [2024-11-16 09:43:13,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:13,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651523465] [2024-11-16 09:43:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:13,379 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 09:43:13,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651523465] [2024-11-16 09:43:13,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651523465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:13,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:13,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:13,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570014256] [2024-11-16 09:43:13,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:13,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:13,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:13,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:13,380 INFO L87 Difference]: Start difference. First operand 5957 states and 8415 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 09:43:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:13,424 INFO L93 Difference]: Finished difference Result 7783 states and 10889 transitions. [2024-11-16 09:43:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:13,425 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 09:43:13,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:13,429 INFO L225 Difference]: With dead ends: 7783 [2024-11-16 09:43:13,429 INFO L226 Difference]: Without dead ends: 4140 [2024-11-16 09:43:13,432 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 09:43:13,433 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 35 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3081 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 09:43:13,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3081 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2024-11-16 09:43:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4137. [2024-11-16 09:43:13,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 4135 states have (on average 1.4314389359129382) internal successors, (5919), 4136 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states 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 09:43:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5919 transitions. [2024-11-16 09:43:13,484 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5919 transitions. Word has length 87 [2024-11-16 09:43:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:13,484 INFO L471 AbstractCegarLoop]: Abstraction has 4137 states and 5919 transitions. [2024-11-16 09:43:13,484 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 09:43:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5919 transitions. [2024-11-16 09:43:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 09:43:13,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:13,485 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] [2024-11-16 09:43:13,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:43:13,486 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:13,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1515941399, now seen corresponding path program 1 times [2024-11-16 09:43:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108491183] [2024-11-16 09:43:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:13,566 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 09:43:13,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:13,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108491183] [2024-11-16 09:43:13,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108491183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:13,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:13,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957051056] [2024-11-16 09:43:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:13,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:13,568 INFO L87 Difference]: Start difference. First operand 4137 states and 5919 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 09:43:13,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:13,598 INFO L93 Difference]: Finished difference Result 5053 states and 7145 transitions. [2024-11-16 09:43:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:13,600 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 09:43:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:13,604 INFO L225 Difference]: With dead ends: 5053 [2024-11-16 09:43:13,604 INFO L226 Difference]: Without dead ends: 3230 [2024-11-16 09:43:13,605 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 09:43:13,606 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 32 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3066 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 09:43:13,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3066 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:13,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2024-11-16 09:43:13,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3227. [2024-11-16 09:43:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3225 states have (on average 1.4524031007751939) internal successors, (4684), 3226 states have internal predecessors, (4684), 0 states have call successors, (0), 0 states 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 09:43:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4684 transitions. [2024-11-16 09:43:13,656 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4684 transitions. Word has length 89 [2024-11-16 09:43:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:13,660 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 4684 transitions. [2024-11-16 09:43:13,661 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 09:43:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4684 transitions. [2024-11-16 09:43:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 09:43:13,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:13,665 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] [2024-11-16 09:43:13,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:43:13,666 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:13,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:13,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1152435390, now seen corresponding path program 1 times [2024-11-16 09:43:13,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:13,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742783950] [2024-11-16 09:43:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:13,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:14,094 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 09:43:14,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:14,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742783950] [2024-11-16 09:43:14,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742783950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:14,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786713557] [2024-11-16 09:43:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:14,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:14,098 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 09:43:14,103 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 09:43:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:14,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 09:43:14,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:14,872 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 09:43:14,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:16,139 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 09:43:16,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786713557] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:16,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:16,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 09:43:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910813979] [2024-11-16 09:43:16,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:16,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:16,141 INFO L87 Difference]: Start difference. First operand 3227 states and 4684 transitions. Second operand has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 09:43:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:18,906 INFO L93 Difference]: Finished difference Result 7304 states and 9968 transitions. [2024-11-16 09:43:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-16 09:43:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 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 09:43:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:18,913 INFO L225 Difference]: With dead ends: 7304 [2024-11-16 09:43:18,913 INFO L226 Difference]: Without dead ends: 6391 [2024-11-16 09:43:18,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=891, Invalid=3531, Unknown=0, NotChecked=0, Total=4422 [2024-11-16 09:43:18,916 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 15379 mSDsluCounter, 11121 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15379 SdHoareTripleChecker+Valid, 12629 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:18,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15379 Valid, 12629 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:43:18,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states. [2024-11-16 09:43:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 5773. [2024-11-16 09:43:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5773 states, 5771 states have (on average 1.3805233061861029) internal successors, (7967), 5772 states have internal predecessors, (7967), 0 states have call successors, (0), 0 states 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 09:43:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5773 states to 5773 states and 7967 transitions. [2024-11-16 09:43:19,074 INFO L78 Accepts]: Start accepts. Automaton has 5773 states and 7967 transitions. Word has length 91 [2024-11-16 09:43:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:19,074 INFO L471 AbstractCegarLoop]: Abstraction has 5773 states and 7967 transitions. [2024-11-16 09:43:19,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 09:43:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5773 states and 7967 transitions. [2024-11-16 09:43:19,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:43:19,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:19,080 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] [2024-11-16 09:43:19,096 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 09:43:19,280 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 09:43:19,281 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:19,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:19,281 INFO L85 PathProgramCache]: Analyzing trace with hash -220981848, now seen corresponding path program 1 times [2024-11-16 09:43:19,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176521507] [2024-11-16 09:43:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:19,744 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 09:43:19,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:19,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176521507] [2024-11-16 09:43:19,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176521507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:19,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599358638] [2024-11-16 09:43:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:19,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:19,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:19,749 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 09:43:19,756 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 09:43:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:19,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 09:43:19,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:20,660 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 09:43:20,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:21,683 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 09:43:21,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599358638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:21,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:21,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 09:43:21,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033219053] [2024-11-16 09:43:21,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:21,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:21,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:21,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:21,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:21,686 INFO L87 Difference]: Start difference. First operand 5773 states and 7967 transitions. Second operand has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 0 states 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 09:43:25,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,489 INFO L93 Difference]: Finished difference Result 34263 states and 44771 transitions. [2024-11-16 09:43:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-16 09:43:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 09:43:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,522 INFO L225 Difference]: With dead ends: 34263 [2024-11-16 09:43:25,522 INFO L226 Difference]: Without dead ends: 30804 [2024-11-16 09:43:25,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2333 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1378, Invalid=6994, Unknown=0, NotChecked=0, Total=8372 [2024-11-16 09:43:25,535 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 18599 mSDsluCounter, 11845 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18599 SdHoareTripleChecker+Valid, 13403 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:25,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18599 Valid, 13403 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:43:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30804 states. [2024-11-16 09:43:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30804 to 15821. [2024-11-16 09:43:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15821 states, 15819 states have (on average 1.302926860104937) internal successors, (20611), 15820 states have internal predecessors, (20611), 0 states have call successors, (0), 0 states 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 09:43:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15821 states to 15821 states and 20611 transitions. [2024-11-16 09:43:25,979 INFO L78 Accepts]: Start accepts. Automaton has 15821 states and 20611 transitions. Word has length 92 [2024-11-16 09:43:25,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:25,979 INFO L471 AbstractCegarLoop]: Abstraction has 15821 states and 20611 transitions. [2024-11-16 09:43:25,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 0 states 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 09:43:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 15821 states and 20611 transitions. [2024-11-16 09:43:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 09:43:25,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:25,981 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 09:43:25,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 09:43:26,185 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 09:43:26,186 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:26,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:26,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1801100071, now seen corresponding path program 1 times [2024-11-16 09:43:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405745716] [2024-11-16 09:43:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,440 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 09:43:26,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405745716] [2024-11-16 09:43:26,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405745716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714728618] [2024-11-16 09:43:26,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:26,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:26,442 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 09:43:26,443 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 09:43:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:43:26,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:26,876 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 09:43:26,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:27,370 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 09:43:27,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714728618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:27,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:27,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-16 09:43:27,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751495010] [2024-11-16 09:43:27,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:27,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 09:43:27,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:27,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 09:43:27,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-16 09:43:27,372 INFO L87 Difference]: Start difference. First operand 15821 states and 20611 transitions. Second operand has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 09:43:28,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:28,327 INFO L93 Difference]: Finished difference Result 43894 states and 56473 transitions. [2024-11-16 09:43:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:43:28,327 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 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 09:43:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:28,355 INFO L225 Difference]: With dead ends: 43894 [2024-11-16 09:43:28,355 INFO L226 Difference]: Without dead ends: 30387 [2024-11-16 09:43:28,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:43:28,369 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 13736 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13736 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:28,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13736 Valid, 6561 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:43:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30387 states. [2024-11-16 09:43:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30387 to 30029. [2024-11-16 09:43:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30029 states, 30027 states have (on average 1.2746861158290872) internal successors, (38275), 30028 states have internal predecessors, (38275), 0 states have call successors, (0), 0 states 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 09:43:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30029 states to 30029 states and 38275 transitions. [2024-11-16 09:43:29,070 INFO L78 Accepts]: Start accepts. Automaton has 30029 states and 38275 transitions. Word has length 93 [2024-11-16 09:43:29,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:29,070 INFO L471 AbstractCegarLoop]: Abstraction has 30029 states and 38275 transitions. [2024-11-16 09:43:29,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 09:43:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 30029 states and 38275 transitions. [2024-11-16 09:43:29,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:29,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:29,074 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 09:43:29,086 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 09:43:29,274 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 09:43:29,275 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:29,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash -470700893, now seen corresponding path program 1 times [2024-11-16 09:43:29,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:29,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261442476] [2024-11-16 09:43:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:29,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:30,006 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 09:43:30,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261442476] [2024-11-16 09:43:30,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261442476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:30,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269203544] [2024-11-16 09:43:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:30,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:30,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:30,009 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 09:43:30,010 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 09:43:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:30,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:43:30,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:30,877 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 09:43:30,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:31,899 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 09:43:31,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269203544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:31,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:31,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2024-11-16 09:43:31,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922293395] [2024-11-16 09:43:31,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:31,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:31,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:31,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:31,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:31,901 INFO L87 Difference]: Start difference. First operand 30029 states and 38275 transitions. Second operand has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 09:43:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:36,466 INFO L93 Difference]: Finished difference Result 65002 states and 82695 transitions. [2024-11-16 09:43:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-16 09:43:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 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 09:43:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:36,520 INFO L225 Difference]: With dead ends: 65002 [2024-11-16 09:43:36,521 INFO L226 Difference]: Without dead ends: 49831 [2024-11-16 09:43:36,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2299 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1665, Invalid=6345, Unknown=0, NotChecked=0, Total=8010 [2024-11-16 09:43:36,538 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 15621 mSDsluCounter, 21710 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15621 SdHoareTripleChecker+Valid, 23231 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:36,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15621 Valid, 23231 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:43:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49831 states. [2024-11-16 09:43:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49831 to 24997. [2024-11-16 09:43:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24997 states, 24995 states have (on average 1.2770954190838169) internal successors, (31921), 24996 states have internal predecessors, (31921), 0 states have call successors, (0), 0 states 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 09:43:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24997 states to 24997 states and 31921 transitions. [2024-11-16 09:43:37,399 INFO L78 Accepts]: Start accepts. Automaton has 24997 states and 31921 transitions. Word has length 94 [2024-11-16 09:43:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:37,400 INFO L471 AbstractCegarLoop]: Abstraction has 24997 states and 31921 transitions. [2024-11-16 09:43:37,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 09:43:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 24997 states and 31921 transitions. [2024-11-16 09:43:37,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:43:37,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:37,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:43:37,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:43:37,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 09:43:37,607 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:37,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:37,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1230569113, now seen corresponding path program 1 times [2024-11-16 09:43:37,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:37,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264501487] [2024-11-16 09:43:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:37,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:38,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264501487] [2024-11-16 09:43:38,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264501487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815685213] [2024-11-16 09:43:38,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:38,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:38,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:38,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:43:38,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:43:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:38,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:43:38,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:39,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:39,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815685213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:39,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:39,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2024-11-16 09:43:39,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874900555] [2024-11-16 09:43:39,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:39,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-16 09:43:39,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-16 09:43:39,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:43:39,643 INFO L87 Difference]: Start difference. First operand 24997 states and 31921 transitions. Second operand has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 09:43:41,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:41,620 INFO L93 Difference]: Finished difference Result 44935 states and 57053 transitions. [2024-11-16 09:43:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 09:43:41,621 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 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 95 [2024-11-16 09:43:41,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:41,658 INFO L225 Difference]: With dead ends: 44935 [2024-11-16 09:43:41,659 INFO L226 Difference]: Without dead ends: 34924 [2024-11-16 09:43:41,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=507, Invalid=2043, Unknown=0, NotChecked=0, Total=2550 [2024-11-16 09:43:41,674 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 14939 mSDsluCounter, 12247 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14939 SdHoareTripleChecker+Valid, 13782 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:41,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14939 Valid, 13782 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:43:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34924 states. [2024-11-16 09:43:42,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34924 to 21845. [2024-11-16 09:43:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21845 states, 21843 states have (on average 1.2814631689786202) internal successors, (27991), 21844 states have internal predecessors, (27991), 0 states have call successors, (0), 0 states 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 09:43:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21845 states to 21845 states and 27991 transitions. [2024-11-16 09:43:42,544 INFO L78 Accepts]: Start accepts. Automaton has 21845 states and 27991 transitions. Word has length 95 [2024-11-16 09:43:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:42,544 INFO L471 AbstractCegarLoop]: Abstraction has 21845 states and 27991 transitions. [2024-11-16 09:43:42,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 09:43:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 21845 states and 27991 transitions. [2024-11-16 09:43:42,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:43:42,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:42,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:43:42,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 09:43:42,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 09:43:42,748 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:42,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash 903225191, now seen corresponding path program 1 times [2024-11-16 09:43:42,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:42,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751774788] [2024-11-16 09:43:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:42,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:44,732 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:44,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:44,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751774788] [2024-11-16 09:43:44,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751774788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:44,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823882863] [2024-11-16 09:43:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:44,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:44,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:44,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:43:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:43:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:44,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 09:43:44,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:43:45,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:43:45,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823882863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:45,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:45,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 6, 4] total 35 [2024-11-16 09:43:45,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660463530] [2024-11-16 09:43:45,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:45,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-16 09:43:45,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-16 09:43:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2024-11-16 09:43:45,225 INFO L87 Difference]: Start difference. First operand 21845 states and 27991 transitions. Second operand has 35 states, 35 states have (on average 7.571428571428571) internal successors, (265), 35 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)