./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label32.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/Problem14_label32.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 60c0fa34c18dde6742c3bd779d2643fe781c7455d58a961a280a354d3d1e679c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:05:17,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:05:17,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:05:17,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:05:17,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:05:17,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:05:17,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:05:17,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:05:17,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:05:17,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:05:17,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:05:17,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:05:17,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:05:17,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:05:17,205 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:05:17,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:05:17,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:05:17,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:05:17,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:05:17,206 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:05:17,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:05:17,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:05:17,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:05:17,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:05:17,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:05:17,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:05:17,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:05:17,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:05:17,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:05:17,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:05:17,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:05:17,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:05:17,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:05:17,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:05:17,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:05:17,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:05:17,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:05:17,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60c0fa34c18dde6742c3bd779d2643fe781c7455d58a961a280a354d3d1e679c [2024-11-16 04:05:17,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:05:17,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:05:17,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:05:17,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:05:17,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:05:17,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2024-11-16 04:05:18,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:05:18,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:05:18,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2024-11-16 04:05:18,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a05b37317/e9d65c0d96ee41ce938b5786a453d6d9/FLAG1c0ce1883 [2024-11-16 04:05:19,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a05b37317/e9d65c0d96ee41ce938b5786a453d6d9 [2024-11-16 04:05:19,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:05:19,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:05:19,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:05:19,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:05:19,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:05:19,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2385a07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19, skipping insertion in model container [2024-11-16 04:05:19,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:05:19,438 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/Problem14_label32.c[5661,5674] [2024-11-16 04:05:19,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:05:19,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:05:19,603 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/Problem14_label32.c[5661,5674] [2024-11-16 04:05:19,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:05:19,698 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:05:19,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19 WrapperNode [2024-11-16 04:05:19,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:05:19,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:05:19,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:05:19,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:05:19,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,777 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-16 04:05:19,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:05:19,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:05:19,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:05:19,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:05:19,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,826 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 04:05:19,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:05:19,878 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:05:19,878 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:05:19,878 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:05:19,879 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (1/1) ... [2024-11-16 04:05:19,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:05:19,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:19,908 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 04:05:19,910 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 04:05:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:05:19,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:05:19,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:05:19,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:05:19,999 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:05:20,000 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:05:20,895 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-16 04:05:20,896 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:05:20,913 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:05:20,914 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:05:20,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:05:20 BoogieIcfgContainer [2024-11-16 04:05:20,914 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:05:20,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:05:20,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:05:20,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:05:20,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:05:19" (1/3) ... [2024-11-16 04:05:20,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4066f635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:05:20, skipping insertion in model container [2024-11-16 04:05:20,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:05:19" (2/3) ... [2024-11-16 04:05:20,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4066f635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:05:20, skipping insertion in model container [2024-11-16 04:05:20,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:05:20" (3/3) ... [2024-11-16 04:05:20,923 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2024-11-16 04:05:20,935 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:05:20,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:05:20,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:05:20,994 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;@31a141a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:05:20,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:05:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 04:05:21,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:21,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:21,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:21,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:21,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1989159533, now seen corresponding path program 1 times [2024-11-16 04:05:21,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:21,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051247704] [2024-11-16 04:05:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:21,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:21,307 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 04:05:21,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051247704] [2024-11-16 04:05:21,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051247704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:21,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:21,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:05:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417275977] [2024-11-16 04:05:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:21,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:21,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:21,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:21,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:21,334 INFO L87 Difference]: Start difference. First operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 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 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:22,125 INFO L93 Difference]: Finished difference Result 675 states and 1206 transitions. [2024-11-16 04:05:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-16 04:05:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:22,137 INFO L225 Difference]: With dead ends: 675 [2024-11-16 04:05:22,138 INFO L226 Difference]: Without dead ends: 363 [2024-11-16 04:05:22,141 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 04:05:22,143 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 155 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:22,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 98 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:05:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-16 04:05:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-16 04:05:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.5165745856353592) internal successors, (549), 362 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 549 transitions. [2024-11-16 04:05:22,186 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 549 transitions. Word has length 57 [2024-11-16 04:05:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:22,186 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 549 transitions. [2024-11-16 04:05:22,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 549 transitions. [2024-11-16 04:05:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 04:05:22,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:22,193 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, 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] [2024-11-16 04:05:22,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:05:22,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:22,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:22,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1183497043, now seen corresponding path program 1 times [2024-11-16 04:05:22,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486530831] [2024-11-16 04:05:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:22,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:05:22,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:22,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486530831] [2024-11-16 04:05:22,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486530831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:22,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:22,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:05:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932870957] [2024-11-16 04:05:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:22,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:22,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:22,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:22,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:22,368 INFO L87 Difference]: Start difference. First operand 363 states and 549 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:22,874 INFO L93 Difference]: Finished difference Result 1082 states and 1641 transitions. [2024-11-16 04:05:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-16 04:05:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:22,878 INFO L225 Difference]: With dead ends: 1082 [2024-11-16 04:05:22,878 INFO L226 Difference]: Without dead ends: 721 [2024-11-16 04:05:22,879 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 04:05:22,880 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 122 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:22,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 99 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:05:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-16 04:05:22,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-16 04:05:22,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 1.351388888888889) internal successors, (973), 720 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 973 transitions. [2024-11-16 04:05:22,898 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 973 transitions. Word has length 133 [2024-11-16 04:05:22,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:22,899 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 973 transitions. [2024-11-16 04:05:22,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 973 transitions. [2024-11-16 04:05:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 04:05:22,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:22,904 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, 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] [2024-11-16 04:05:22,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:05:22,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:22,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:22,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1471400631, now seen corresponding path program 1 times [2024-11-16 04:05:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681854542] [2024-11-16 04:05:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:22,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:05:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:23,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681854542] [2024-11-16 04:05:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681854542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:23,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:23,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:23,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572250768] [2024-11-16 04:05:23,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:23,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:05:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:23,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:05:23,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:23,138 INFO L87 Difference]: Start difference. First operand 721 states and 973 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:23,910 INFO L93 Difference]: Finished difference Result 1977 states and 2583 transitions. [2024-11-16 04:05:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:05:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-16 04:05:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:23,915 INFO L225 Difference]: With dead ends: 1977 [2024-11-16 04:05:23,915 INFO L226 Difference]: Without dead ends: 1258 [2024-11-16 04:05:23,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:23,920 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 421 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:23,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 128 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:05:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-16 04:05:23,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1258. [2024-11-16 04:05:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 1.2346857597454257) internal successors, (1552), 1257 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1552 transitions. [2024-11-16 04:05:23,950 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1552 transitions. Word has length 137 [2024-11-16 04:05:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:23,951 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1552 transitions. [2024-11-16 04:05:23,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1552 transitions. [2024-11-16 04:05:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-16 04:05:23,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:23,960 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:23,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:05:23,960 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:23,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1112493188, now seen corresponding path program 1 times [2024-11-16 04:05:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:23,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894258651] [2024-11-16 04:05:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 04:05:24,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:24,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894258651] [2024-11-16 04:05:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894258651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:24,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:24,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:24,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161375069] [2024-11-16 04:05:24,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:24,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:05:24,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:05:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:24,216 INFO L87 Difference]: Start difference. First operand 1258 states and 1552 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:24,784 INFO L93 Difference]: Finished difference Result 2723 states and 3371 transitions. [2024-11-16 04:05:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:05:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 218 [2024-11-16 04:05:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:24,790 INFO L225 Difference]: With dead ends: 2723 [2024-11-16 04:05:24,790 INFO L226 Difference]: Without dead ends: 1616 [2024-11-16 04:05:24,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:24,793 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 102 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:24,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 127 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:05:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-16 04:05:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-16 04:05:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.1213622291021672) internal successors, (1811), 1615 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1811 transitions. [2024-11-16 04:05:24,818 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1811 transitions. Word has length 218 [2024-11-16 04:05:24,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:24,818 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1811 transitions. [2024-11-16 04:05:24,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1811 transitions. [2024-11-16 04:05:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-16 04:05:24,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:24,822 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, 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:05:24,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:05:24,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:24,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2022561114, now seen corresponding path program 1 times [2024-11-16 04:05:24,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:24,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976159243] [2024-11-16 04:05:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:24,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 209 proven. 132 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 04:05:25,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:25,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976159243] [2024-11-16 04:05:25,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976159243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:25,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006665842] [2024-11-16 04:05:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:25,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:25,207 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 04:05:25,208 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 04:05:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:25,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:25,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 04:05:25,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:25,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006665842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:25,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:25,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:05:25,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121549936] [2024-11-16 04:05:25,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:25,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:25,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:25,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:25,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:25,409 INFO L87 Difference]: Start difference. First operand 1616 states and 1811 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:25,826 INFO L93 Difference]: Finished difference Result 3409 states and 3922 transitions. [2024-11-16 04:05:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:25,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 346 [2024-11-16 04:05:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:25,831 INFO L225 Difference]: With dead ends: 3409 [2024-11-16 04:05:25,831 INFO L226 Difference]: Without dead ends: 1974 [2024-11-16 04:05:25,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:25,833 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 130 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:25,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 259 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:25,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-16 04:05:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2024-11-16 04:05:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1973 states have (on average 1.131272174353776) internal successors, (2232), 1973 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2232 transitions. [2024-11-16 04:05:25,856 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2232 transitions. Word has length 346 [2024-11-16 04:05:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:25,857 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 2232 transitions. [2024-11-16 04:05:25,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2232 transitions. [2024-11-16 04:05:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-16 04:05:25,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:25,859 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, 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, 2, 2, 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] [2024-11-16 04:05:25,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:05:26,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:26,060 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:26,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1886063664, now seen corresponding path program 1 times [2024-11-16 04:05:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583496724] [2024-11-16 04:05:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:26,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 293 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:05:26,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583496724] [2024-11-16 04:05:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583496724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866185684] [2024-11-16 04:05:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:26,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:26,614 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 04:05:26,615 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 04:05:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:26,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:26,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 04:05:26,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:26,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866185684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:26,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:26,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:05:26,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146806254] [2024-11-16 04:05:26,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:26,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:26,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:26,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:26,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:05:26,785 INFO L87 Difference]: Start difference. First operand 1974 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:27,237 INFO L93 Difference]: Finished difference Result 4304 states and 4936 transitions. [2024-11-16 04:05:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:27,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 350 [2024-11-16 04:05:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:27,244 INFO L225 Difference]: With dead ends: 4304 [2024-11-16 04:05:27,244 INFO L226 Difference]: Without dead ends: 2511 [2024-11-16 04:05:27,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:05:27,246 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 126 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:27,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 257 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:27,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-16 04:05:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2511. [2024-11-16 04:05:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2510 states have (on average 1.1195219123505975) internal successors, (2810), 2510 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 2810 transitions. [2024-11-16 04:05:27,272 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 2810 transitions. Word has length 350 [2024-11-16 04:05:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:27,273 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 2810 transitions. [2024-11-16 04:05:27,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 2810 transitions. [2024-11-16 04:05:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-16 04:05:27,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:27,276 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, 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, 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] [2024-11-16 04:05:27,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:05:27,480 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,SelfDestructingSolverStorable5 [2024-11-16 04:05:27,481 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:27,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2011246709, now seen corresponding path program 1 times [2024-11-16 04:05:27,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842287612] [2024-11-16 04:05:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 222 proven. 132 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-16 04:05:27,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:27,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842287612] [2024-11-16 04:05:27,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842287612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:27,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109354527] [2024-11-16 04:05:27,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:27,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:27,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:27,797 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 04:05:27,798 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 04:05:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:27,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:27,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-11-16 04:05:28,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:28,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109354527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:28,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:28,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-16 04:05:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195952417] [2024-11-16 04:05:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:28,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:28,161 INFO L87 Difference]: Start difference. First operand 2511 states and 2810 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:28,614 INFO L93 Difference]: Finished difference Result 5557 states and 6345 transitions. [2024-11-16 04:05:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 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 359 [2024-11-16 04:05:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:28,623 INFO L225 Difference]: With dead ends: 5557 [2024-11-16 04:05:28,623 INFO L226 Difference]: Without dead ends: 3227 [2024-11-16 04:05:28,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:28,627 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 83 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:28,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 55 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2024-11-16 04:05:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3048. [2024-11-16 04:05:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 3047 states have (on average 1.1155234657039712) internal successors, (3399), 3047 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 3399 transitions. [2024-11-16 04:05:28,675 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 3399 transitions. Word has length 359 [2024-11-16 04:05:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 3048 states and 3399 transitions. [2024-11-16 04:05:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 3399 transitions. [2024-11-16 04:05:28,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-16 04:05:28,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:28,679 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:28,696 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 04:05:28,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:28,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:28,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2086118587, now seen corresponding path program 1 times [2024-11-16 04:05:28,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:28,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115367844] [2024-11-16 04:05:28,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:28,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:28,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:28,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115367844] [2024-11-16 04:05:28,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115367844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:28,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:28,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:28,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306815971] [2024-11-16 04:05:28,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:28,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:28,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:28,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:28,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:28,999 INFO L87 Difference]: Start difference. First operand 3048 states and 3399 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:29,401 INFO L93 Difference]: Finished difference Result 6631 states and 7490 transitions. [2024-11-16 04:05:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 384 [2024-11-16 04:05:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:29,410 INFO L225 Difference]: With dead ends: 6631 [2024-11-16 04:05:29,411 INFO L226 Difference]: Without dead ends: 3764 [2024-11-16 04:05:29,414 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 04:05:29,415 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 139 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:29,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 62 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2024-11-16 04:05:29,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3764. [2024-11-16 04:05:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3764 states, 3763 states have (on average 1.120382673398884) internal successors, (4216), 3763 states have internal predecessors, (4216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 4216 transitions. [2024-11-16 04:05:29,467 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 4216 transitions. Word has length 384 [2024-11-16 04:05:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:29,468 INFO L471 AbstractCegarLoop]: Abstraction has 3764 states and 4216 transitions. [2024-11-16 04:05:29,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 4216 transitions. [2024-11-16 04:05:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-16 04:05:29,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:29,470 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:29,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:05:29,470 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:29,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1857550939, now seen corresponding path program 1 times [2024-11-16 04:05:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:29,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344684329] [2024-11-16 04:05:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:29,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-16 04:05:29,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:29,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344684329] [2024-11-16 04:05:29,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344684329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:29,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:29,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42353882] [2024-11-16 04:05:29,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:29,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:29,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:29,784 INFO L87 Difference]: Start difference. First operand 3764 states and 4216 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:30,131 INFO L93 Difference]: Finished difference Result 7884 states and 8856 transitions. [2024-11-16 04:05:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 444 [2024-11-16 04:05:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:30,148 INFO L225 Difference]: With dead ends: 7884 [2024-11-16 04:05:30,148 INFO L226 Difference]: Without dead ends: 4301 [2024-11-16 04:05:30,151 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 04:05:30,152 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:30,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 84 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-11-16 04:05:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4301. [2024-11-16 04:05:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 1.1111627906976744) internal successors, (4778), 4300 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 4778 transitions. [2024-11-16 04:05:30,195 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 4778 transitions. Word has length 444 [2024-11-16 04:05:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:30,195 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 4778 transitions. [2024-11-16 04:05:30,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 4778 transitions. [2024-11-16 04:05:30,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-16 04:05:30,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:30,199 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:30,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:05:30,199 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:30,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1849360106, now seen corresponding path program 1 times [2024-11-16 04:05:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5511203] [2024-11-16 04:05:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:30,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 04:05:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:30,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5511203] [2024-11-16 04:05:30,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5511203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:30,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:30,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:30,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037413924] [2024-11-16 04:05:30,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:30,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:05:30,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:30,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:05:30,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:30,465 INFO L87 Difference]: Start difference. First operand 4301 states and 4778 transitions. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:30,891 INFO L93 Difference]: Finished difference Result 8660 states and 9631 transitions. [2024-11-16 04:05:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:05:30,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 525 [2024-11-16 04:05:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:30,900 INFO L225 Difference]: With dead ends: 8660 [2024-11-16 04:05:30,900 INFO L226 Difference]: Without dead ends: 4480 [2024-11-16 04:05:30,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:30,904 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 142 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:30,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 23 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2024-11-16 04:05:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4301. [2024-11-16 04:05:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 1.0790697674418606) internal successors, (4640), 4300 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 4640 transitions. [2024-11-16 04:05:30,974 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 4640 transitions. Word has length 525 [2024-11-16 04:05:30,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:30,975 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 4640 transitions. [2024-11-16 04:05:30,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 4640 transitions. [2024-11-16 04:05:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-16 04:05:30,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:30,981 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, 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, 3, 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] [2024-11-16 04:05:30,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:05:30,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:30,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:30,982 INFO L85 PathProgramCache]: Analyzing trace with hash -857253299, now seen corresponding path program 1 times [2024-11-16 04:05:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:30,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302270775] [2024-11-16 04:05:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:30,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2024-11-16 04:05:31,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:31,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302270775] [2024-11-16 04:05:31,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302270775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:31,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:31,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:31,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042534293] [2024-11-16 04:05:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:31,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:31,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:31,186 INFO L87 Difference]: Start difference. First operand 4301 states and 4640 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:31,542 INFO L93 Difference]: Finished difference Result 9137 states and 9900 transitions. [2024-11-16 04:05:31,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:31,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 04:05:31,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:31,557 INFO L225 Difference]: With dead ends: 9137 [2024-11-16 04:05:31,558 INFO L226 Difference]: Without dead ends: 5017 [2024-11-16 04:05:31,577 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 04:05:31,578 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 127 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:31,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 61 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2024-11-16 04:05:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 4659. [2024-11-16 04:05:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4659 states, 4658 states have (on average 1.0783598110777157) internal successors, (5023), 4658 states have internal predecessors, (5023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4659 states to 4659 states and 5023 transitions. [2024-11-16 04:05:31,622 INFO L78 Accepts]: Start accepts. Automaton has 4659 states and 5023 transitions. Word has length 540 [2024-11-16 04:05:31,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:31,623 INFO L471 AbstractCegarLoop]: Abstraction has 4659 states and 5023 transitions. [2024-11-16 04:05:31,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4659 states and 5023 transitions. [2024-11-16 04:05:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-16 04:05:31,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:31,626 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, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:31,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:05:31,626 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:31,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1207716919, now seen corresponding path program 2 times [2024-11-16 04:05:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577538218] [2024-11-16 04:05:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:31,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 466 proven. 68 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577538218] [2024-11-16 04:05:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577538218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587496852] [2024-11-16 04:05:32,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 04:05:32,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:32,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:32,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:05:32,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:05:32,133 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 04:05:32,134 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 04:05:32,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:32,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2024-11-16 04:05:32,597 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:32,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587496852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:32,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-16 04:05:32,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318552947] [2024-11-16 04:05:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:32,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:32,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:32,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:32,599 INFO L87 Difference]: Start difference. First operand 4659 states and 5023 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:32,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:32,900 INFO L93 Difference]: Finished difference Result 5736 states and 6200 transitions. [2024-11-16 04:05:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:32,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 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 551 [2024-11-16 04:05:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:32,911 INFO L225 Difference]: With dead ends: 5736 [2024-11-16 04:05:32,911 INFO L226 Difference]: Without dead ends: 5733 [2024-11-16 04:05:32,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:32,912 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:32,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 15 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2024-11-16 04:05:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 4838. [2024-11-16 04:05:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4838 states, 4837 states have (on average 1.0804217490179864) internal successors, (5226), 4837 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 5226 transitions. [2024-11-16 04:05:32,954 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 5226 transitions. Word has length 551 [2024-11-16 04:05:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:32,954 INFO L471 AbstractCegarLoop]: Abstraction has 4838 states and 5226 transitions. [2024-11-16 04:05:32,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 5226 transitions. [2024-11-16 04:05:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2024-11-16 04:05:32,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:32,959 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, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:32,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 04:05:33,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:33,161 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:33,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:33,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1382282625, now seen corresponding path program 1 times [2024-11-16 04:05:33,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:33,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165973193] [2024-11-16 04:05:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:33,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 951 proven. 11 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-16 04:05:33,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:33,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165973193] [2024-11-16 04:05:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165973193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:33,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369008743] [2024-11-16 04:05:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:33,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:33,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:33,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:05:33,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 04:05:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:33,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:33,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2024-11-16 04:05:33,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:33,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369008743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:33,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:33,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:05:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554154977] [2024-11-16 04:05:33,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:33,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:33,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:33,818 INFO L87 Difference]: Start difference. First operand 4838 states and 5226 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:34,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:34,108 INFO L93 Difference]: Finished difference Result 10748 states and 11626 transitions. [2024-11-16 04:05:34,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:34,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 634 [2024-11-16 04:05:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:34,115 INFO L225 Difference]: With dead ends: 10748 [2024-11-16 04:05:34,115 INFO L226 Difference]: Without dead ends: 5733 [2024-11-16 04:05:34,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 633 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 04:05:34,119 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 126 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:34,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 252 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2024-11-16 04:05:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 4480. [2024-11-16 04:05:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.0785889707524001) internal successors, (4831), 4479 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 4831 transitions. [2024-11-16 04:05:34,172 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 4831 transitions. Word has length 634 [2024-11-16 04:05:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:34,173 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 4831 transitions. [2024-11-16 04:05:34,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 4831 transitions. [2024-11-16 04:05:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2024-11-16 04:05:34,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:34,181 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:34,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 04:05:34,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 04:05:34,382 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:34,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1512434955, now seen corresponding path program 1 times [2024-11-16 04:05:34,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:34,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454579453] [2024-11-16 04:05:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:34,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1987 backedges. 1379 proven. 11 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2024-11-16 04:05:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454579453] [2024-11-16 04:05:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454579453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539438908] [2024-11-16 04:05:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:34,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:34,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:34,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:05:34,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 04:05:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:35,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:35,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1987 backedges. 1297 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2024-11-16 04:05:35,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:35,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539438908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:35,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:35,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:05:35,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358784434] [2024-11-16 04:05:35,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:35,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:35,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:35,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:35,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:05:35,188 INFO L87 Difference]: Start difference. First operand 4480 states and 4831 transitions. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:35,502 INFO L93 Difference]: Finished difference Result 8600 states and 9300 transitions. [2024-11-16 04:05:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 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 834 [2024-11-16 04:05:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:35,507 INFO L225 Difference]: With dead ends: 8600 [2024-11-16 04:05:35,507 INFO L226 Difference]: Without dead ends: 4480 [2024-11-16 04:05:35,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 833 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 04:05:35,510 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 15 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:35,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 218 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2024-11-16 04:05:35,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4301. [2024-11-16 04:05:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 1.0695348837209302) internal successors, (4599), 4300 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 4599 transitions. [2024-11-16 04:05:35,538 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 4599 transitions. Word has length 834 [2024-11-16 04:05:35,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:35,539 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 4599 transitions. [2024-11-16 04:05:35,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:35,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 4599 transitions. [2024-11-16 04:05:35,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2024-11-16 04:05:35,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:35,546 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2024-11-16 04:05:35,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 04:05:35,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:35,747 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:35,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1438738505, now seen corresponding path program 1 times [2024-11-16 04:05:35,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:35,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287139934] [2024-11-16 04:05:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:35,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 1575 proven. 156 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-16 04:05:36,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:36,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287139934] [2024-11-16 04:05:36,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287139934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:36,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998834819] [2024-11-16 04:05:36,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:36,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:36,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:36,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:05:36,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 04:05:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:36,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:36,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 1779 trivial. 0 not checked. [2024-11-16 04:05:36,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:36,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998834819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:36,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:36,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:05:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21873726] [2024-11-16 04:05:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:36,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:36,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:36,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:36,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:36,471 INFO L87 Difference]: Start difference. First operand 4301 states and 4599 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:36,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:36,765 INFO L93 Difference]: Finished difference Result 5196 states and 5565 transitions. [2024-11-16 04:05:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:36,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 888 [2024-11-16 04:05:36,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:36,766 INFO L225 Difference]: With dead ends: 5196 [2024-11-16 04:05:36,766 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:05:36,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:36,770 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:36,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 10 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:05:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:05:36,771 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 04:05:36,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:05:36,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 888 [2024-11-16 04:05:36,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:36,772 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:05:36,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:05:36,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:05:36,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:05:36,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 04:05:36,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:36,978 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:36,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:05:37,292 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:05:37,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:05:37 BoogieIcfgContainer [2024-11-16 04:05:37,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:05:37,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:05:37,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:05:37,301 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:05:37,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:05:20" (3/4) ... [2024-11-16 04:05:37,303 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:05:37,315 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 04:05:37,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:05:37,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:05:37,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:05:37,447 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:05:37,447 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:05:37,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:05:37,448 INFO L158 Benchmark]: Toolchain (without parser) took 18255.22ms. Allocated memory was 174.1MB in the beginning and 627.0MB in the end (delta: 453.0MB). Free memory was 142.5MB in the beginning and 468.6MB in the end (delta: -326.1MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,448 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 77.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:05:37,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.63ms. Allocated memory is still 174.1MB. Free memory was 142.1MB in the beginning and 106.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.64ms. Allocated memory is still 174.1MB. Free memory was 106.4MB in the beginning and 97.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,449 INFO L158 Benchmark]: Boogie Preprocessor took 98.82ms. Allocated memory is still 174.1MB. Free memory was 97.0MB in the beginning and 85.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,449 INFO L158 Benchmark]: IcfgBuilder took 1036.44ms. Allocated memory is still 174.1MB. Free memory was 85.5MB in the beginning and 126.7MB in the end (delta: -41.3MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,449 INFO L158 Benchmark]: TraceAbstraction took 16384.55ms. Allocated memory was 174.1MB in the beginning and 627.0MB in the end (delta: 453.0MB). Free memory was 125.7MB in the beginning and 484.3MB in the end (delta: -358.6MB). Peak memory consumption was 365.9MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,450 INFO L158 Benchmark]: Witness Printer took 146.53ms. Allocated memory is still 627.0MB. Free memory was 483.3MB in the beginning and 468.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 04:05:37,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 77.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.63ms. Allocated memory is still 174.1MB. Free memory was 142.1MB in the beginning and 106.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.64ms. Allocated memory is still 174.1MB. Free memory was 106.4MB in the beginning and 97.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.82ms. Allocated memory is still 174.1MB. Free memory was 97.0MB in the beginning and 85.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1036.44ms. Allocated memory is still 174.1MB. Free memory was 85.5MB in the beginning and 126.7MB in the end (delta: -41.3MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16384.55ms. Allocated memory was 174.1MB in the beginning and 627.0MB in the end (delta: 453.0MB). Free memory was 125.7MB in the beginning and 484.3MB in the end (delta: -358.6MB). Peak memory consumption was 365.9MB. Max. memory is 16.1GB. * Witness Printer took 146.53ms. Allocated memory is still 627.0MB. Free memory was 483.3MB in the beginning and 468.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 179]: 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, 248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.0s, OverallIterations: 15, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1865 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1865 mSDsluCounter, 1748 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 980 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7733 IncrementalHoareTripleChecker+Invalid, 8713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 980 mSolverCounterUnsat, 1633 mSDtfsCounter, 7733 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4007 GetRequests, 3967 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4838occurred in iteration=12, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 3043 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 10362 NumberOfCodeBlocks, 9868 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10340 ConstructedInterpolants, 0 QuantifiedInterpolants, 32644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4382 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 17354/17996 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: 890]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:05:37,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE