./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label58.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/eca-rers2012/Problem15_label58.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 d01c93de245456455f0527bcf882987e2bed2e3604b850da24f21647f0ce8431 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:11:16,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:11:16,911 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:11:16,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:11:16,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:11:16,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:11:16,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:11:16,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:11:16,939 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:11:16,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:11:16,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:11:16,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:11:16,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:11:16,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:11:16,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:11:16,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:11:16,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:11:16,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:11:16,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:11:16,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:11:16,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:11:16,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:11:16,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:11:16,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:11:16,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:11:16,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:11:16,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:11:16,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:11:16,944 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:11:16,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:11:16,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:11:16,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:11:16,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:11:16,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:11:16,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:11:16,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:11:16,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:11:16,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:11:16,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:11:16,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:11:16,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:11:16,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:11:16,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d01c93de245456455f0527bcf882987e2bed2e3604b850da24f21647f0ce8431 [2024-11-16 04:11:17,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:11:17,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:11:17,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:11:17,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:11:17,148 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:11:17,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label58.c [2024-11-16 04:11:18,347 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:11:18,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:11:18,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label58.c [2024-11-16 04:11:18,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f06f1bcd/aecbed83edf24df3b1748ab165c03de4/FLAGdd29e2956 [2024-11-16 04:11:18,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f06f1bcd/aecbed83edf24df3b1748ab165c03de4 [2024-11-16 04:11:18,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:11:18,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:11:18,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:11:18,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:11:18,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:11:18,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:18" (1/1) ... [2024-11-16 04:11:18,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2557b314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:18, skipping insertion in model container [2024-11-16 04:11:18,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:18" (1/1) ... [2024-11-16 04:11:18,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:11:18,920 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/eca-rers2012/Problem15_label58.c[6184,6197] [2024-11-16 04:11:19,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:11:19,181 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:11:19,200 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/eca-rers2012/Problem15_label58.c[6184,6197] [2024-11-16 04:11:19,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:11:19,342 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:11:19,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19 WrapperNode [2024-11-16 04:11:19,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:11:19,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:11:19,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:11:19,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:11:19,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,528 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-16 04:11:19,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:11:19,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:11:19,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:11:19,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:11:19,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,638 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 04:11:19,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:11:19,774 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:11:19,774 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:11:19,774 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:11:19,775 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (1/1) ... [2024-11-16 04:11:19,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:11:19,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:19,800 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 04:11:19,801 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 04:11:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:11:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:11:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:11:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:11:19,881 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:11:19,883 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:11:21,498 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-16 04:11:21,554 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-16 04:11:21,555 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:11:21,578 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:11:21,580 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:11:21,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:21 BoogieIcfgContainer [2024-11-16 04:11:21,580 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:11:21,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:11:21,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:11:21,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:11:21,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:11:18" (1/3) ... [2024-11-16 04:11:21,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b472791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:21, skipping insertion in model container [2024-11-16 04:11:21,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:19" (2/3) ... [2024-11-16 04:11:21,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b472791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:21, skipping insertion in model container [2024-11-16 04:11:21,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:21" (3/3) ... [2024-11-16 04:11:21,588 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label58.c [2024-11-16 04:11:21,600 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:11:21,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:11:21,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:11:21,663 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;@4bc17079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:11:21,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:11:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:21,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 04:11:21,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:21,676 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] [2024-11-16 04:11:21,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:21,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2072644470, now seen corresponding path program 1 times [2024-11-16 04:11:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700018458] [2024-11-16 04:11:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:21,995 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 04:11:21,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700018458] [2024-11-16 04:11:21,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700018458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:21,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:21,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:21,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395826791] [2024-11-16 04:11:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:22,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:22,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:22,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:22,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:22,019 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:23,522 INFO L93 Difference]: Finished difference Result 1161 states and 2112 transitions. [2024-11-16 04:11:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-16 04:11:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:23,536 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 04:11:23,536 INFO L226 Difference]: Without dead ends: 670 [2024-11-16 04:11:23,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:23,542 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 294 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:23,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 374 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:11:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-16 04:11:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 668. [2024-11-16 04:11:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 667 states have (on average 1.4767616191904047) internal successors, (985), 667 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 985 transitions. [2024-11-16 04:11:23,599 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 985 transitions. Word has length 52 [2024-11-16 04:11:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:23,600 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 985 transitions. [2024-11-16 04:11:23,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 985 transitions. [2024-11-16 04:11:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 04:11:23,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:23,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:23,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:11:23,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:23,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1970506527, now seen corresponding path program 1 times [2024-11-16 04:11:23,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:23,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490423317] [2024-11-16 04:11:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:23,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:23,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490423317] [2024-11-16 04:11:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490423317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:23,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:23,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:23,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965531739] [2024-11-16 04:11:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:23,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:23,768 INFO L87 Difference]: Start difference. First operand 668 states and 985 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:25,076 INFO L93 Difference]: Finished difference Result 1961 states and 2901 transitions. [2024-11-16 04:11:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:25,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-16 04:11:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:25,080 INFO L225 Difference]: With dead ends: 1961 [2024-11-16 04:11:25,080 INFO L226 Difference]: Without dead ends: 1295 [2024-11-16 04:11:25,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:25,084 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 256 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:25,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 328 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:11:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-16 04:11:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1287. [2024-11-16 04:11:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 1.3965785381026439) internal successors, (1796), 1286 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1796 transitions. [2024-11-16 04:11:25,114 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1796 transitions. Word has length 128 [2024-11-16 04:11:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:25,115 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1796 transitions. [2024-11-16 04:11:25,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1796 transitions. [2024-11-16 04:11:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 04:11:25,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:25,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:25,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:11:25,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:25,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1458104233, now seen corresponding path program 1 times [2024-11-16 04:11:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746378805] [2024-11-16 04:11:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746378805] [2024-11-16 04:11:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746378805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:25,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:25,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:25,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608176001] [2024-11-16 04:11:25,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:25,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:25,250 INFO L87 Difference]: Start difference. First operand 1287 states and 1796 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:26,292 INFO L93 Difference]: Finished difference Result 3781 states and 5276 transitions. [2024-11-16 04:11:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-16 04:11:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:26,299 INFO L225 Difference]: With dead ends: 3781 [2024-11-16 04:11:26,299 INFO L226 Difference]: Without dead ends: 2496 [2024-11-16 04:11:26,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:26,301 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 272 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:26,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 342 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:11:26,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-16 04:11:26,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2190. [2024-11-16 04:11:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2189 states have (on average 1.2804933759707628) internal successors, (2803), 2189 states have internal predecessors, (2803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2803 transitions. [2024-11-16 04:11:26,327 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2803 transitions. Word has length 132 [2024-11-16 04:11:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:26,328 INFO L471 AbstractCegarLoop]: Abstraction has 2190 states and 2803 transitions. [2024-11-16 04:11:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2803 transitions. [2024-11-16 04:11:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-16 04:11:26,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:26,331 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:26,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:11:26,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:26,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:26,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2011898072, now seen corresponding path program 1 times [2024-11-16 04:11:26,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201490059] [2024-11-16 04:11:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:26,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:26,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201490059] [2024-11-16 04:11:26,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201490059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:26,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:26,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:26,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542704890] [2024-11-16 04:11:26,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:26,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:26,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:26,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:26,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:26,528 INFO L87 Difference]: Start difference. First operand 2190 states and 2803 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:27,620 INFO L93 Difference]: Finished difference Result 5587 states and 7286 transitions. [2024-11-16 04:11:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:27,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2024-11-16 04:11:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:27,629 INFO L225 Difference]: With dead ends: 5587 [2024-11-16 04:11:27,629 INFO L226 Difference]: Without dead ends: 3399 [2024-11-16 04:11:27,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:27,632 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 278 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:27,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 619 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:11:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2024-11-16 04:11:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3397. [2024-11-16 04:11:27,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3396 states have (on average 1.2152532391048292) internal successors, (4127), 3396 states have internal predecessors, (4127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4127 transitions. [2024-11-16 04:11:27,674 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4127 transitions. Word has length 249 [2024-11-16 04:11:27,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:27,675 INFO L471 AbstractCegarLoop]: Abstraction has 3397 states and 4127 transitions. [2024-11-16 04:11:27,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4127 transitions. [2024-11-16 04:11:27,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-16 04:11:27,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:27,678 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:27,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:11:27,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:27,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash -341147590, now seen corresponding path program 1 times [2024-11-16 04:11:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:27,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69821037] [2024-11-16 04:11:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:27,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:27,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69821037] [2024-11-16 04:11:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69821037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:27,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661356075] [2024-11-16 04:11:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:27,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:27,990 INFO L87 Difference]: Start difference. First operand 3397 states and 4127 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:29,089 INFO L93 Difference]: Finished difference Result 8000 states and 9935 transitions. [2024-11-16 04:11:29,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:29,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 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 335 [2024-11-16 04:11:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:29,100 INFO L225 Difference]: With dead ends: 8000 [2024-11-16 04:11:29,100 INFO L226 Difference]: Without dead ends: 4605 [2024-11-16 04:11:29,103 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 04:11:29,104 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 279 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:29,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 636 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:11:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2024-11-16 04:11:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4300. [2024-11-16 04:11:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4299 states have (on average 1.1986508490346592) internal successors, (5153), 4299 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 5153 transitions. [2024-11-16 04:11:29,151 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 5153 transitions. Word has length 335 [2024-11-16 04:11:29,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:29,151 INFO L471 AbstractCegarLoop]: Abstraction has 4300 states and 5153 transitions. [2024-11-16 04:11:29,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 5153 transitions. [2024-11-16 04:11:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-16 04:11:29,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:29,155 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:29,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:11:29,156 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:29,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:29,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2114345037, now seen corresponding path program 1 times [2024-11-16 04:11:29,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:29,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096527494] [2024-11-16 04:11:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:29,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-16 04:11:29,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:29,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096527494] [2024-11-16 04:11:29,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096527494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:29,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:29,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:29,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399328481] [2024-11-16 04:11:29,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:29,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:29,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:29,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:29,723 INFO L87 Difference]: Start difference. First operand 4300 states and 5153 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:30,638 INFO L93 Difference]: Finished difference Result 8898 states and 10616 transitions. [2024-11-16 04:11:30,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:30,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 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 414 [2024-11-16 04:11:30,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:30,648 INFO L225 Difference]: With dead ends: 8898 [2024-11-16 04:11:30,648 INFO L226 Difference]: Without dead ends: 4600 [2024-11-16 04:11:30,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:30,653 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 105 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:30,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 358 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:30,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2024-11-16 04:11:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4600. [2024-11-16 04:11:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.1869971732985432) internal successors, (5459), 4599 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 5459 transitions. [2024-11-16 04:11:30,697 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 5459 transitions. Word has length 414 [2024-11-16 04:11:30,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:30,698 INFO L471 AbstractCegarLoop]: Abstraction has 4600 states and 5459 transitions. [2024-11-16 04:11:30,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 5459 transitions. [2024-11-16 04:11:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-11-16 04:11:30,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:30,703 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:30,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:11:30,703 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:30,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:30,704 INFO L85 PathProgramCache]: Analyzing trace with hash 646525355, now seen corresponding path program 1 times [2024-11-16 04:11:30,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:30,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803730284] [2024-11-16 04:11:30,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:30,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:30,950 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 04:11:30,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:30,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803730284] [2024-11-16 04:11:30,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803730284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:30,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:30,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:30,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564240287] [2024-11-16 04:11:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:30,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:30,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:30,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:30,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:30,953 INFO L87 Difference]: Start difference. First operand 4600 states and 5459 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:32,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:32,138 INFO L93 Difference]: Finished difference Result 11598 states and 13846 transitions. [2024-11-16 04:11:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:32,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 506 [2024-11-16 04:11:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:32,154 INFO L225 Difference]: With dead ends: 11598 [2024-11-16 04:11:32,154 INFO L226 Difference]: Without dead ends: 7300 [2024-11-16 04:11:32,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:32,163 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 148 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:32,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 320 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:11:32,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2024-11-16 04:11:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 6100. [2024-11-16 04:11:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6099 states have (on average 1.1656009181833087) internal successors, (7109), 6099 states have internal predecessors, (7109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 7109 transitions. [2024-11-16 04:11:32,232 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 7109 transitions. Word has length 506 [2024-11-16 04:11:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:32,232 INFO L471 AbstractCegarLoop]: Abstraction has 6100 states and 7109 transitions. [2024-11-16 04:11:32,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 7109 transitions. [2024-11-16 04:11:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-16 04:11:32,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:32,240 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:32,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:11:32,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:32,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1334462674, now seen corresponding path program 1 times [2024-11-16 04:11:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:32,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232162930] [2024-11-16 04:11:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 512 proven. 39 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-16 04:11:32,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:32,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232162930] [2024-11-16 04:11:32,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232162930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:32,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135395348] [2024-11-16 04:11:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:32,762 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 04:11:32,763 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 04:11:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:32,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:11:32,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-16 04:11:33,009 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:11:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135395348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:11:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:11:33,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138453294] [2024-11-16 04:11:33,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:33,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:33,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:11:33,010 INFO L87 Difference]: Start difference. First operand 6100 states and 7109 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:33,981 INFO L93 Difference]: Finished difference Result 13997 states and 16640 transitions. [2024-11-16 04:11:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 540 [2024-11-16 04:11:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:34,002 INFO L225 Difference]: With dead ends: 13997 [2024-11-16 04:11:34,002 INFO L226 Difference]: Without dead ends: 8199 [2024-11-16 04:11:34,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:11:34,008 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 367 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:34,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 451 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:34,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8199 states. [2024-11-16 04:11:34,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8199 to 8199. [2024-11-16 04:11:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8199 states, 8198 states have (on average 1.1793120273237374) internal successors, (9668), 8198 states have internal predecessors, (9668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8199 states to 8199 states and 9668 transitions. [2024-11-16 04:11:34,109 INFO L78 Accepts]: Start accepts. Automaton has 8199 states and 9668 transitions. Word has length 540 [2024-11-16 04:11:34,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:34,110 INFO L471 AbstractCegarLoop]: Abstraction has 8199 states and 9668 transitions. [2024-11-16 04:11:34,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:34,110 INFO L276 IsEmpty]: Start isEmpty. Operand 8199 states and 9668 transitions. [2024-11-16 04:11:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-16 04:11:34,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:34,116 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:34,130 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 04:11:34,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:34,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:34,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1379371976, now seen corresponding path program 1 times [2024-11-16 04:11:34,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:34,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628838155] [2024-11-16 04:11:34,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:34,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-16 04:11:34,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:34,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628838155] [2024-11-16 04:11:34,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628838155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:34,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:34,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:34,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134203529] [2024-11-16 04:11:34,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:34,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:34,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:34,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:34,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:34,672 INFO L87 Difference]: Start difference. First operand 8199 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:35,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:35,770 INFO L93 Difference]: Finished difference Result 20011 states and 23779 transitions. [2024-11-16 04:11:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:35,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 544 [2024-11-16 04:11:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:35,794 INFO L225 Difference]: With dead ends: 20011 [2024-11-16 04:11:35,794 INFO L226 Difference]: Without dead ends: 12114 [2024-11-16 04:11:35,801 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 04:11:35,802 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 248 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:35,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 626 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:11:35,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12114 states. [2024-11-16 04:11:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12114 to 12103. [2024-11-16 04:11:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12103 states, 12102 states have (on average 1.1558420095851925) internal successors, (13988), 12102 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12103 states to 12103 states and 13988 transitions. [2024-11-16 04:11:35,911 INFO L78 Accepts]: Start accepts. Automaton has 12103 states and 13988 transitions. Word has length 544 [2024-11-16 04:11:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:35,911 INFO L471 AbstractCegarLoop]: Abstraction has 12103 states and 13988 transitions. [2024-11-16 04:11:35,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 12103 states and 13988 transitions. [2024-11-16 04:11:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2024-11-16 04:11:35,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:35,918 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:11:35,918 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:35,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1000831314, now seen corresponding path program 1 times [2024-11-16 04:11:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121761304] [2024-11-16 04:11:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:35,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-16 04:11:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:36,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121761304] [2024-11-16 04:11:36,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121761304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:36,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:36,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:36,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985079143] [2024-11-16 04:11:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:36,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:36,633 INFO L87 Difference]: Start difference. First operand 12103 states and 13988 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:37,609 INFO L93 Difference]: Finished difference Result 26607 states and 31214 transitions. [2024-11-16 04:11:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:37,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 582 [2024-11-16 04:11:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:37,629 INFO L225 Difference]: With dead ends: 26607 [2024-11-16 04:11:37,629 INFO L226 Difference]: Without dead ends: 14806 [2024-11-16 04:11:37,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:11:37,640 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 319 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:37,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 216 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2024-11-16 04:11:37,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 14206. [2024-11-16 04:11:37,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14206 states, 14205 states have (on average 1.1728968673002464) internal successors, (16661), 14205 states have internal predecessors, (16661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14206 states to 14206 states and 16661 transitions. [2024-11-16 04:11:37,773 INFO L78 Accepts]: Start accepts. Automaton has 14206 states and 16661 transitions. Word has length 582 [2024-11-16 04:11:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 14206 states and 16661 transitions. [2024-11-16 04:11:37,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 14206 states and 16661 transitions. [2024-11-16 04:11:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-16 04:11:37,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:37,780 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:37,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:11:37,780 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:37,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1213874642, now seen corresponding path program 1 times [2024-11-16 04:11:37,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:37,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183920764] [2024-11-16 04:11:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:37,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-11-16 04:11:38,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183920764] [2024-11-16 04:11:38,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183920764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:38,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:38,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681435371] [2024-11-16 04:11:38,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:38,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:38,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:38,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:38,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:38,095 INFO L87 Difference]: Start difference. First operand 14206 states and 16661 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:39,047 INFO L93 Difference]: Finished difference Result 29310 states and 34287 transitions. [2024-11-16 04:11:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 598 [2024-11-16 04:11:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:39,061 INFO L225 Difference]: With dead ends: 29310 [2024-11-16 04:11:39,061 INFO L226 Difference]: Without dead ends: 14206 [2024-11-16 04:11:39,072 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 04:11:39,073 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 252 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:39,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 671 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2024-11-16 04:11:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 14206. [2024-11-16 04:11:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14206 states, 14205 states have (on average 1.1698697641675466) internal successors, (16618), 14205 states have internal predecessors, (16618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14206 states to 14206 states and 16618 transitions. [2024-11-16 04:11:39,243 INFO L78 Accepts]: Start accepts. Automaton has 14206 states and 16618 transitions. Word has length 598 [2024-11-16 04:11:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:39,243 INFO L471 AbstractCegarLoop]: Abstraction has 14206 states and 16618 transitions. [2024-11-16 04:11:39,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 14206 states and 16618 transitions. [2024-11-16 04:11:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2024-11-16 04:11:39,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:39,251 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:39,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:11:39,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:39,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:39,251 INFO L85 PathProgramCache]: Analyzing trace with hash 305151411, now seen corresponding path program 1 times [2024-11-16 04:11:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:39,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112759625] [2024-11-16 04:11:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:39,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 671 proven. 39 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-16 04:11:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112759625] [2024-11-16 04:11:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112759625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246106480] [2024-11-16 04:11:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:39,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:39,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:39,689 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 04:11:39,690 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 04:11:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:39,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:11:39,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-16 04:11:39,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:11:39,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246106480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:39,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:11:39,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:11:39,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863521264] [2024-11-16 04:11:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:39,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:39,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:39,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:39,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:11:39,939 INFO L87 Difference]: Start difference. First operand 14206 states and 16618 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:41,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:41,060 INFO L93 Difference]: Finished difference Result 28109 states and 32847 transitions. [2024-11-16 04:11:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 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 620 [2024-11-16 04:11:41,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:41,074 INFO L225 Difference]: With dead ends: 28109 [2024-11-16 04:11:41,074 INFO L226 Difference]: Without dead ends: 14205 [2024-11-16 04:11:41,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:11:41,085 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 253 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:41,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 605 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:11:41,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14205 states. [2024-11-16 04:11:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14205 to 14204. [2024-11-16 04:11:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14204 states, 14203 states have (on average 1.1114553263395057) internal successors, (15786), 14203 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 15786 transitions. [2024-11-16 04:11:41,264 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 15786 transitions. Word has length 620 [2024-11-16 04:11:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:41,264 INFO L471 AbstractCegarLoop]: Abstraction has 14204 states and 15786 transitions. [2024-11-16 04:11:41,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 15786 transitions. [2024-11-16 04:11:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2024-11-16 04:11:41,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:41,274 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:41,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:11:41,474 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,SelfDestructingSolverStorable11 [2024-11-16 04:11:41,476 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:41,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1293814864, now seen corresponding path program 1 times [2024-11-16 04:11:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210665108] [2024-11-16 04:11:41,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:41,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 596 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-16 04:11:42,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:42,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210665108] [2024-11-16 04:11:42,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210665108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:42,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763207505] [2024-11-16 04:11:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:42,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:42,005 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 04:11:42,006 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 04:11:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:42,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 04:11:42,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 596 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-16 04:11:42,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:11:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 596 proven. 39 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-16 04:11:43,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763207505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:11:43,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:11:43,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-16 04:11:43,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140749265] [2024-11-16 04:11:43,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:11:43,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 04:11:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 04:11:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:11:43,278 INFO L87 Difference]: Start difference. First operand 14204 states and 15786 transitions. Second operand has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:47,602 INFO L93 Difference]: Finished difference Result 36172 states and 40161 transitions. [2024-11-16 04:11:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 04:11:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 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 620 [2024-11-16 04:11:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:47,617 INFO L225 Difference]: With dead ends: 36172 [2024-11-16 04:11:47,617 INFO L226 Difference]: Without dead ends: 16305 [2024-11-16 04:11:47,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1249 GetRequests, 1235 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-16 04:11:47,629 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 2436 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 7253 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 7874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 7253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:47,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2436 Valid, 344 Invalid, 7874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 7253 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 04:11:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16305 states. [2024-11-16 04:11:47,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16305 to 12702. [2024-11-16 04:11:47,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12702 states, 12701 states have (on average 1.0563735138965435) internal successors, (13417), 12701 states have internal predecessors, (13417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12702 states to 12702 states and 13417 transitions. [2024-11-16 04:11:47,735 INFO L78 Accepts]: Start accepts. Automaton has 12702 states and 13417 transitions. Word has length 620 [2024-11-16 04:11:47,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:47,735 INFO L471 AbstractCegarLoop]: Abstraction has 12702 states and 13417 transitions. [2024-11-16 04:11:47,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 12702 states and 13417 transitions. [2024-11-16 04:11:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2024-11-16 04:11:47,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:47,741 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:47,754 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 04:11:47,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:47,942 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:47,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1207291290, now seen corresponding path program 1 times [2024-11-16 04:11:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:47,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407371184] [2024-11-16 04:11:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:47,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 04:11:48,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:48,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407371184] [2024-11-16 04:11:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407371184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:48,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167788134] [2024-11-16 04:11:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:48,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:48,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:48,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:48,293 INFO L87 Difference]: Start difference. First operand 12702 states and 13417 transitions. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:48,969 INFO L93 Difference]: Finished difference Result 29006 states and 30712 transitions. [2024-11-16 04:11:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:48,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 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 651 [2024-11-16 04:11:48,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:48,983 INFO L225 Difference]: With dead ends: 29006 [2024-11-16 04:11:48,983 INFO L226 Difference]: Without dead ends: 16306 [2024-11-16 04:11:48,991 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 04:11:48,991 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 121 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:48,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 514 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16306 states. [2024-11-16 04:11:49,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16306 to 16006. [2024-11-16 04:11:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16006 states, 16005 states have (on average 1.049047172758513) internal successors, (16790), 16005 states have internal predecessors, (16790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16006 states to 16006 states and 16790 transitions. [2024-11-16 04:11:49,104 INFO L78 Accepts]: Start accepts. Automaton has 16006 states and 16790 transitions. Word has length 651 [2024-11-16 04:11:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:49,104 INFO L471 AbstractCegarLoop]: Abstraction has 16006 states and 16790 transitions. [2024-11-16 04:11:49,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 16006 states and 16790 transitions. [2024-11-16 04:11:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2024-11-16 04:11:49,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:49,111 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:49,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:11:49,112 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:49,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1090497784, now seen corresponding path program 1 times [2024-11-16 04:11:49,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:49,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583137843] [2024-11-16 04:11:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-16 04:11:49,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:49,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583137843] [2024-11-16 04:11:49,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583137843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:49,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:49,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713119869] [2024-11-16 04:11:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:49,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:49,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:49,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:49,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:49,581 INFO L87 Difference]: Start difference. First operand 16006 states and 16790 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:50,296 INFO L93 Difference]: Finished difference Result 34407 states and 36129 transitions. [2024-11-16 04:11:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:50,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 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 716 [2024-11-16 04:11:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:50,311 INFO L225 Difference]: With dead ends: 34407 [2024-11-16 04:11:50,311 INFO L226 Difference]: Without dead ends: 18403 [2024-11-16 04:11:50,321 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 04:11:50,321 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 151 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:50,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 472 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18403 states. [2024-11-16 04:11:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18403 to 15092. [2024-11-16 04:11:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15092 states, 15091 states have (on average 1.049433437147969) internal successors, (15837), 15091 states have internal predecessors, (15837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15092 states to 15092 states and 15837 transitions. [2024-11-16 04:11:50,443 INFO L78 Accepts]: Start accepts. Automaton has 15092 states and 15837 transitions. Word has length 716 [2024-11-16 04:11:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:50,443 INFO L471 AbstractCegarLoop]: Abstraction has 15092 states and 15837 transitions. [2024-11-16 04:11:50,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15092 states and 15837 transitions. [2024-11-16 04:11:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2024-11-16 04:11:50,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:50,452 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:50,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:11:50,452 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:50,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash 292052005, now seen corresponding path program 1 times [2024-11-16 04:11:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967647187] [2024-11-16 04:11:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-11-16 04:11:50,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:50,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967647187] [2024-11-16 04:11:50,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967647187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:50,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:50,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813909594] [2024-11-16 04:11:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:50,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:50,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:50,811 INFO L87 Difference]: Start difference. First operand 15092 states and 15837 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:51,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:51,444 INFO L93 Difference]: Finished difference Result 33781 states and 35444 transitions. [2024-11-16 04:11:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:51,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 841 [2024-11-16 04:11:51,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:51,458 INFO L225 Difference]: With dead ends: 33781 [2024-11-16 04:11:51,458 INFO L226 Difference]: Without dead ends: 18991 [2024-11-16 04:11:51,466 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 04:11:51,467 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 313 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:51,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 529 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2024-11-16 04:11:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 17791. [2024-11-16 04:11:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17791 states, 17790 states have (on average 1.0457560427206296) internal successors, (18604), 17790 states have internal predecessors, (18604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17791 states to 17791 states and 18604 transitions. [2024-11-16 04:11:51,585 INFO L78 Accepts]: Start accepts. Automaton has 17791 states and 18604 transitions. Word has length 841 [2024-11-16 04:11:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:51,585 INFO L471 AbstractCegarLoop]: Abstraction has 17791 states and 18604 transitions. [2024-11-16 04:11:51,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 17791 states and 18604 transitions. [2024-11-16 04:11:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2024-11-16 04:11:51,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:51,595 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:51,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:11:51,596 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:51,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1162442032, now seen corresponding path program 1 times [2024-11-16 04:11:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630685480] [2024-11-16 04:11:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2024-11-16 04:11:52,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630685480] [2024-11-16 04:11:52,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630685480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:52,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:52,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:52,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174939104] [2024-11-16 04:11:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:52,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:52,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:52,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:52,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:52,054 INFO L87 Difference]: Start difference. First operand 17791 states and 18604 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:52,798 INFO L93 Difference]: Finished difference Result 40398 states and 42294 transitions. [2024-11-16 04:11:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:52,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 862 [2024-11-16 04:11:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:52,819 INFO L225 Difference]: With dead ends: 40398 [2024-11-16 04:11:52,820 INFO L226 Difference]: Without dead ends: 22909 [2024-11-16 04:11:52,832 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 04:11:52,833 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 295 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:52,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 169 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:11:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22909 states. [2024-11-16 04:11:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22909 to 19296. [2024-11-16 04:11:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19296 states, 19295 states have (on average 1.0469551697330914) internal successors, (20201), 19295 states have internal predecessors, (20201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 20201 transitions. [2024-11-16 04:11:52,975 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 20201 transitions. Word has length 862 [2024-11-16 04:11:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:52,976 INFO L471 AbstractCegarLoop]: Abstraction has 19296 states and 20201 transitions. [2024-11-16 04:11:52,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 20201 transitions. [2024-11-16 04:11:52,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2024-11-16 04:11:52,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:52,988 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:52,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:11:52,988 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:52,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:52,988 INFO L85 PathProgramCache]: Analyzing trace with hash 939198911, now seen corresponding path program 1 times [2024-11-16 04:11:52,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:52,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679799763] [2024-11-16 04:11:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:52,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1341 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-16 04:11:53,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:53,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679799763] [2024-11-16 04:11:53,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679799763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:53,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:53,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783457685] [2024-11-16 04:11:53,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:53,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:53,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:53,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:53,428 INFO L87 Difference]: Start difference. First operand 19296 states and 20201 transitions. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:54,074 INFO L93 Difference]: Finished difference Result 37986 states and 39779 transitions. [2024-11-16 04:11:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 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 932 [2024-11-16 04:11:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:54,089 INFO L225 Difference]: With dead ends: 37986 [2024-11-16 04:11:54,089 INFO L226 Difference]: Without dead ends: 18992 [2024-11-16 04:11:54,100 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 04:11:54,100 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 79 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:54,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 512 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18992 states. [2024-11-16 04:11:54,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18992 to 18692. [2024-11-16 04:11:54,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18692 states, 18691 states have (on average 1.0315124926435182) internal successors, (19280), 18691 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18692 states to 18692 states and 19280 transitions. [2024-11-16 04:11:54,223 INFO L78 Accepts]: Start accepts. Automaton has 18692 states and 19280 transitions. Word has length 932 [2024-11-16 04:11:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:54,224 INFO L471 AbstractCegarLoop]: Abstraction has 18692 states and 19280 transitions. [2024-11-16 04:11:54,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 18692 states and 19280 transitions. [2024-11-16 04:11:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2024-11-16 04:11:54,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:54,235 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:54,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:11:54,235 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:54,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -603360605, now seen corresponding path program 1 times [2024-11-16 04:11:54,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:54,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989811972] [2024-11-16 04:11:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:54,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-16 04:11:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989811972] [2024-11-16 04:11:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989811972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:54,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:54,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660183510] [2024-11-16 04:11:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:54,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:54,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:54,814 INFO L87 Difference]: Start difference. First operand 18692 states and 19280 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:55,444 INFO L93 Difference]: Finished difference Result 30738 states and 31629 transitions. [2024-11-16 04:11:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:55,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 951 [2024-11-16 04:11:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:55,445 INFO L225 Difference]: With dead ends: 30738 [2024-11-16 04:11:55,445 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:11:55,454 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 04:11:55,455 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 273 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:55,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 86 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:11:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:11:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:11:55,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 951 [2024-11-16 04:11:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:55,456 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:11:55,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:11:55,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:11:55,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:11:55,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:11:55,460 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:55,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:11:56,609 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:11:56,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:11:56 BoogieIcfgContainer [2024-11-16 04:11:56,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:11:56,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:11:56,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:11:56,618 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:11:56,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:21" (3/4) ... [2024-11-16 04:11:56,620 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:11:56,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:11:56,642 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:11:56,643 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:11:56,644 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:11:56,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:11:56,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:11:56,793 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:11:56,794 INFO L158 Benchmark]: Toolchain (without parser) took 38174.93ms. Allocated memory was 178.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,794 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:11:56,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 722.55ms. Allocated memory is still 178.3MB. Free memory was 104.1MB in the beginning and 74.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 184.99ms. Allocated memory is still 178.3MB. Free memory was 74.9MB in the beginning and 117.4MB in the end (delta: -42.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,795 INFO L158 Benchmark]: Boogie Preprocessor took 244.64ms. Allocated memory was 178.3MB in the beginning and 295.7MB in the end (delta: 117.4MB). Free memory was 117.4MB in the beginning and 233.6MB in the end (delta: -116.1MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,795 INFO L158 Benchmark]: IcfgBuilder took 1806.01ms. Allocated memory is still 295.7MB. Free memory was 232.5MB in the beginning and 187.7MB in the end (delta: 44.8MB). Peak memory consumption was 114.5MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,795 INFO L158 Benchmark]: TraceAbstraction took 35035.67ms. Allocated memory was 295.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 187.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 860.9MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,795 INFO L158 Benchmark]: Witness Printer took 175.63ms. Allocated memory is still 1.5GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-16 04:11:56,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 722.55ms. Allocated memory is still 178.3MB. Free memory was 104.1MB in the beginning and 74.9MB in the end (delta: 29.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 184.99ms. Allocated memory is still 178.3MB. Free memory was 74.9MB in the beginning and 117.4MB in the end (delta: -42.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 244.64ms. Allocated memory was 178.3MB in the beginning and 295.7MB in the end (delta: 117.4MB). Free memory was 117.4MB in the beginning and 233.6MB in the end (delta: -116.1MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * IcfgBuilder took 1806.01ms. Allocated memory is still 295.7MB. Free memory was 232.5MB in the beginning and 187.7MB in the end (delta: 44.8MB). Peak memory consumption was 114.5MB. Max. memory is 16.1GB. * TraceAbstraction took 35035.67ms. Allocated memory was 295.7MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 187.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 860.9MB. Max. memory is 16.1GB. * Witness Printer took 175.63ms. Allocated memory is still 1.5GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 167]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.8s, OverallIterations: 19, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6739 SdHoareTripleChecker+Valid, 20.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6739 mSDsluCounter, 8172 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 898 mSDsCounter, 3609 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22686 IncrementalHoareTripleChecker+Invalid, 26295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3609 mSolverCounterUnsat, 7274 mSDtfsCounter, 22686 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2461 GetRequests, 2423 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19296occurred in iteration=17, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 14762 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 12053 NumberOfCodeBlocks, 12053 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 12650 ConstructedInterpolants, 0 QuantifiedInterpolants, 30422 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2209 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 15088/15283 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:11:56,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE