./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label16.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/Problem16_label16.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 6a9abcfae74a76ffd8cfeb07527f27fd22a6ecfb39955551233acb9bdc6f8719 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:26:27,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:26:27,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:26:27,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:26:27,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:26:27,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:26:27,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:26:27,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:26:27,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:26:27,621 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:26:27,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:26:27,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:26:27,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:26:27,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:26:27,624 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:26:27,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:26:27,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:26:27,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:26:27,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:26:27,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:26:27,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:26:27,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:26:27,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:26:27,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:26:27,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:26:27,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:26:27,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:26:27,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:26:27,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:26:27,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:26:27,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:26:27,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:26:27,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:26:27,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:26:27,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:26:27,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:26:27,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:26:27,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:26:27,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:26:27,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:26:27,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:26:27,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:26:27,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a9abcfae74a76ffd8cfeb07527f27fd22a6ecfb39955551233acb9bdc6f8719 [2024-11-21 22:26:27,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:26:27,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:26:27,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:26:27,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:26:27,923 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:26:27,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label16.c [2024-11-21 22:26:29,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:26:29,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:26:29,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label16.c [2024-11-21 22:26:29,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d3f355d0/4185760a15364893a4a22801bf16a3e3/FLAG4adbd672e [2024-11-21 22:26:29,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d3f355d0/4185760a15364893a4a22801bf16a3e3 [2024-11-21 22:26:29,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:26:29,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:26:29,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:26:29,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:26:29,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:26:29,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:29" (1/1) ... [2024-11-21 22:26:29,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8c8e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:29, skipping insertion in model container [2024-11-21 22:26:29,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:26:29" (1/1) ... [2024-11-21 22:26:29,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:26:30,016 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/Problem16_label16.c[4534,4547] [2024-11-21 22:26:30,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:26:30,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:26:30,426 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/Problem16_label16.c[4534,4547] [2024-11-21 22:26:30,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:26:30,597 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:26:30,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30 WrapperNode [2024-11-21 22:26:30,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:26:30,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:26:30,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:26:30,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:26:30,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,794 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-21 22:26:30,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:26:30,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:26:30,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:26:30,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:26:30,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,876 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]. [2024-11-21 22:26:30,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:30,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:31,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:31,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:26:31,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:26:31,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:26:31,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:26:31,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (1/1) ... [2024-11-21 22:26:31,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:26:31,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:26:31,060 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) [2024-11-21 22:26:31,063 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 [2024-11-21 22:26:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:26:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:26:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:26:31,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:26:31,153 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:26:31,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:26:33,119 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-21 22:26:33,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:26:33,147 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:26:33,150 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:26:33,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:33 BoogieIcfgContainer [2024-11-21 22:26:33,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:26:33,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:26:33,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:26:33,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:26:33,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:26:29" (1/3) ... [2024-11-21 22:26:33,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b5c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:33, skipping insertion in model container [2024-11-21 22:26:33,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:26:30" (2/3) ... [2024-11-21 22:26:33,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b5c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:26:33, skipping insertion in model container [2024-11-21 22:26:33,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:33" (3/3) ... [2024-11-21 22:26:33,158 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label16.c [2024-11-21 22:26:33,174 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:26:33,175 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:26:33,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:26:33,264 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;@f480bcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:26:33,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:26:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-21 22:26:33,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:33,282 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] [2024-11-21 22:26:33,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:33,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2024-11-21 22:26:33,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542553107] [2024-11-21 22:26:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:26:33,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:33,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542553107] [2024-11-21 22:26:33,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542553107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:33,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:33,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197537200] [2024-11-21 22:26:33,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:33,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:26:33,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:26:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:26:33,843 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 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 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:36,852 INFO L93 Difference]: Finished difference Result 1456 states and 2764 transitions. [2024-11-21 22:26:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:26:36,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-21 22:26:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:36,872 INFO L225 Difference]: With dead ends: 1456 [2024-11-21 22:26:36,872 INFO L226 Difference]: Without dead ends: 991 [2024-11-21 22:26:36,876 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 [2024-11-21 22:26:36,879 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 948 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:36,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 347 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-21 22:26:36,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-21 22:26:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-21 22:26:36,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.4858585858585858) internal successors, (1471), 990 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1471 transitions. [2024-11-21 22:26:36,972 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1471 transitions. Word has length 42 [2024-11-21 22:26:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:36,975 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1471 transitions. [2024-11-21 22:26:36,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1471 transitions. [2024-11-21 22:26:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-21 22:26:36,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:36,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:36,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:26:36,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:36,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:36,984 INFO L85 PathProgramCache]: Analyzing trace with hash -389809175, now seen corresponding path program 1 times [2024-11-21 22:26:36,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:36,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872704857] [2024-11-21 22:26:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:36,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-21 22:26:37,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:37,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872704857] [2024-11-21 22:26:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872704857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:37,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:26:37,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234020626] [2024-11-21 22:26:37,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:37,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:37,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:37,232 INFO L87 Difference]: Start difference. First operand 991 states and 1471 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:38,658 INFO L93 Difference]: Finished difference Result 2309 states and 3726 transitions. [2024-11-21 22:26:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:38,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-11-21 22:26:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:38,665 INFO L225 Difference]: With dead ends: 2309 [2024-11-21 22:26:38,666 INFO L226 Difference]: Without dead ends: 1649 [2024-11-21 22:26:38,667 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 [2024-11-21 22:26:38,668 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 280 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:38,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 199 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:26:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-21 22:26:38,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1649. [2024-11-21 22:26:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.379247572815534) internal successors, (2273), 1648 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2273 transitions. [2024-11-21 22:26:38,707 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2273 transitions. Word has length 129 [2024-11-21 22:26:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:38,709 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2273 transitions. [2024-11-21 22:26:38,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2273 transitions. [2024-11-21 22:26:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-21 22:26:38,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:38,718 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:38,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:26:38,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:38,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:38,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1296418382, now seen corresponding path program 1 times [2024-11-21 22:26:38,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:38,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382896398] [2024-11-21 22:26:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-21 22:26:38,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:38,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382896398] [2024-11-21 22:26:38,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382896398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:38,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:38,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:26:38,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793859001] [2024-11-21 22:26:38,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:38,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:38,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:38,970 INFO L87 Difference]: Start difference. First operand 1649 states and 2273 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:40,358 INFO L93 Difference]: Finished difference Result 4283 states and 6132 transitions. [2024-11-21 22:26:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:40,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 208 [2024-11-21 22:26:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:40,371 INFO L225 Difference]: With dead ends: 4283 [2024-11-21 22:26:40,372 INFO L226 Difference]: Without dead ends: 2965 [2024-11-21 22:26:40,375 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 [2024-11-21 22:26:40,376 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 358 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:40,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 156 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-21 22:26:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2024-11-21 22:26:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2636. [2024-11-21 22:26:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.3400379506641367) internal successors, (3531), 2635 states have internal predecessors, (3531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3531 transitions. [2024-11-21 22:26:40,429 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3531 transitions. Word has length 208 [2024-11-21 22:26:40,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:40,430 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3531 transitions. [2024-11-21 22:26:40,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3531 transitions. [2024-11-21 22:26:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-21 22:26:40,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:40,439 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:26:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:26:40,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:40,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:40,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1276193876, now seen corresponding path program 1 times [2024-11-21 22:26:40,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:40,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500676124] [2024-11-21 22:26:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:40,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-21 22:26:40,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:40,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500676124] [2024-11-21 22:26:40,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500676124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:40,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:40,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:26:40,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087382354] [2024-11-21 22:26:40,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:40,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:40,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:40,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:40,750 INFO L87 Difference]: Start difference. First operand 2636 states and 3531 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:41,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:41,858 INFO L93 Difference]: Finished difference Result 5599 states and 7527 transitions. [2024-11-21 22:26:41,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:41,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 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 284 [2024-11-21 22:26:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:41,870 INFO L225 Difference]: With dead ends: 5599 [2024-11-21 22:26:41,870 INFO L226 Difference]: Without dead ends: 3294 [2024-11-21 22:26:41,876 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 [2024-11-21 22:26:41,878 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 278 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:41,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 77 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-21 22:26:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-21 22:26:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3294. [2024-11-21 22:26:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3293 states have (on average 1.2247191011235956) internal successors, (4033), 3293 states have internal predecessors, (4033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 4033 transitions. [2024-11-21 22:26:41,937 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 4033 transitions. Word has length 284 [2024-11-21 22:26:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:41,938 INFO L471 AbstractCegarLoop]: Abstraction has 3294 states and 4033 transitions. [2024-11-21 22:26:41,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 4033 transitions. [2024-11-21 22:26:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-21 22:26:41,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:41,945 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:26:41,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:26:41,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:41,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 542875968, now seen corresponding path program 1 times [2024-11-21 22:26:41,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:41,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069826314] [2024-11-21 22:26:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:41,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-21 22:26:42,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:42,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069826314] [2024-11-21 22:26:42,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069826314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:42,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:42,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442829844] [2024-11-21 22:26:42,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:42,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:42,268 INFO L87 Difference]: Start difference. First operand 3294 states and 4033 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:43,554 INFO L93 Difference]: Finished difference Result 6586 states and 8076 transitions. [2024-11-21 22:26:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:43,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 461 [2024-11-21 22:26:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:43,567 INFO L225 Difference]: With dead ends: 6586 [2024-11-21 22:26:43,567 INFO L226 Difference]: Without dead ends: 3294 [2024-11-21 22:26:43,572 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 [2024-11-21 22:26:43,573 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 288 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:43,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 538 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-21 22:26:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-21 22:26:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3294. [2024-11-21 22:26:43,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3293 states have (on average 1.0567871242028546) internal successors, (3480), 3293 states have internal predecessors, (3480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:43,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 3480 transitions. [2024-11-21 22:26:43,636 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 3480 transitions. Word has length 461 [2024-11-21 22:26:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:43,637 INFO L471 AbstractCegarLoop]: Abstraction has 3294 states and 3480 transitions. [2024-11-21 22:26:43,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 3480 transitions. [2024-11-21 22:26:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-21 22:26:43,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:43,645 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:43,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:26:43,646 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:43,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:43,646 INFO L85 PathProgramCache]: Analyzing trace with hash -120465574, now seen corresponding path program 1 times [2024-11-21 22:26:43,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:43,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830246262] [2024-11-21 22:26:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:43,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-21 22:26:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:44,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830246262] [2024-11-21 22:26:44,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830246262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:44,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:44,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447211390] [2024-11-21 22:26:44,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:44,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:26:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:26:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:26:44,475 INFO L87 Difference]: Start difference. First operand 3294 states and 3480 transitions. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:45,961 INFO L93 Difference]: Finished difference Result 10865 states and 11555 transitions. [2024-11-21 22:26:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:26:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 513 [2024-11-21 22:26:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:45,987 INFO L225 Difference]: With dead ends: 10865 [2024-11-21 22:26:45,987 INFO L226 Difference]: Without dead ends: 7573 [2024-11-21 22:26:45,992 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 [2024-11-21 22:26:45,993 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 400 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:45,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 86 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:26:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7573 states. [2024-11-21 22:26:46,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7573 to 7242. [2024-11-21 22:26:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.0552409888136998) internal successors, (7641), 7241 states have internal predecessors, (7641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:46,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 7641 transitions. [2024-11-21 22:26:46,115 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 7641 transitions. Word has length 513 [2024-11-21 22:26:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:46,117 INFO L471 AbstractCegarLoop]: Abstraction has 7242 states and 7641 transitions. [2024-11-21 22:26:46,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 7641 transitions. [2024-11-21 22:26:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-11-21 22:26:46,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:46,132 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:46,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:26:46,132 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:46,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash -907700658, now seen corresponding path program 1 times [2024-11-21 22:26:46,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:46,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305145745] [2024-11-21 22:26:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:46,746 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-21 22:26:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:46,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305145745] [2024-11-21 22:26:46,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305145745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:46,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:46,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:26:46,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597842019] [2024-11-21 22:26:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:46,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:46,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:46,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:46,750 INFO L87 Difference]: Start difference. First operand 7242 states and 7641 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:47,747 INFO L93 Difference]: Finished difference Result 16787 states and 17749 transitions. [2024-11-21 22:26:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:47,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 609 [2024-11-21 22:26:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:47,782 INFO L225 Difference]: With dead ends: 16787 [2024-11-21 22:26:47,782 INFO L226 Difference]: Without dead ends: 9876 [2024-11-21 22:26:47,795 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 [2024-11-21 22:26:47,796 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:47,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 61 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-21 22:26:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9876 states. [2024-11-21 22:26:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9876 to 9545. [2024-11-21 22:26:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9545 states, 9544 states have (on average 1.0550083822296732) internal successors, (10069), 9544 states have internal predecessors, (10069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9545 states to 9545 states and 10069 transitions. [2024-11-21 22:26:47,951 INFO L78 Accepts]: Start accepts. Automaton has 9545 states and 10069 transitions. Word has length 609 [2024-11-21 22:26:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:47,952 INFO L471 AbstractCegarLoop]: Abstraction has 9545 states and 10069 transitions. [2024-11-21 22:26:47,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9545 states and 10069 transitions. [2024-11-21 22:26:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2024-11-21 22:26:47,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:47,958 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:47,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:26:47,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:47,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:47,959 INFO L85 PathProgramCache]: Analyzing trace with hash -720261318, now seen corresponding path program 1 times [2024-11-21 22:26:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631960538] [2024-11-21 22:26:47,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:47,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 656 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-21 22:26:48,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:48,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631960538] [2024-11-21 22:26:48,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631960538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:48,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347582473] [2024-11-21 22:26:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:48,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:48,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:48,645 INFO L87 Difference]: Start difference. First operand 9545 states and 10069 transitions. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:49,537 INFO L93 Difference]: Finished difference Result 22378 states and 23757 transitions. [2024-11-21 22:26:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 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 617 [2024-11-21 22:26:49,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:49,562 INFO L225 Difference]: With dead ends: 22378 [2024-11-21 22:26:49,562 INFO L226 Difference]: Without dead ends: 13164 [2024-11-21 22:26:49,573 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 [2024-11-21 22:26:49,574 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 222 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:49,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 40 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:26:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-21 22:26:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-21 22:26:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0581174504292334) internal successors, (13928), 13163 states have internal predecessors, (13928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:49,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13928 transitions. [2024-11-21 22:26:49,769 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13928 transitions. Word has length 617 [2024-11-21 22:26:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:49,770 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13928 transitions. [2024-11-21 22:26:49,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13928 transitions. [2024-11-21 22:26:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2024-11-21 22:26:49,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:49,784 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:49,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:26:49,784 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:49,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:49,785 INFO L85 PathProgramCache]: Analyzing trace with hash 498042412, now seen corresponding path program 1 times [2024-11-21 22:26:49,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:49,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222733090] [2024-11-21 22:26:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:49,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-21 22:26:51,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:51,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222733090] [2024-11-21 22:26:51,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222733090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:51,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54607012] [2024-11-21 22:26:51,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:51,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:26:51,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:51,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:26:51,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:26:51,110 INFO L87 Difference]: Start difference. First operand 13164 states and 13928 transitions. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:52,215 INFO L93 Difference]: Finished difference Result 25997 states and 27523 transitions. [2024-11-21 22:26:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:26:52,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 874 [2024-11-21 22:26:52,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:52,239 INFO L225 Difference]: With dead ends: 25997 [2024-11-21 22:26:52,240 INFO L226 Difference]: Without dead ends: 13164 [2024-11-21 22:26:52,253 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 [2024-11-21 22:26:52,254 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 268 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:52,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 118 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:26:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-21 22:26:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-21 22:26:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.057737597812049) internal successors, (13923), 13163 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:52,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13923 transitions. [2024-11-21 22:26:52,518 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13923 transitions. Word has length 874 [2024-11-21 22:26:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:52,519 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13923 transitions. [2024-11-21 22:26:52,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13923 transitions. [2024-11-21 22:26:52,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2024-11-21 22:26:52,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:52,546 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:26:52,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:26:52,547 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:52,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash 217602170, now seen corresponding path program 1 times [2024-11-21 22:26:52,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:52,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772751084] [2024-11-21 22:26:52,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:52,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1873 backedges. 1172 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2024-11-21 22:26:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772751084] [2024-11-21 22:26:53,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772751084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:53,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:53,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:53,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898965163] [2024-11-21 22:26:53,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:53,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:53,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:53,324 INFO L87 Difference]: Start difference. First operand 13164 states and 13923 transitions. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:54,157 INFO L93 Difference]: Finished difference Result 28629 states and 30369 transitions. [2024-11-21 22:26:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:54,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 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 935 [2024-11-21 22:26:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:54,182 INFO L225 Difference]: With dead ends: 28629 [2024-11-21 22:26:54,182 INFO L226 Difference]: Without dead ends: 15796 [2024-11-21 22:26:54,196 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 [2024-11-21 22:26:54,197 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:54,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 433 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-21 22:26:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-21 22:26:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15467. [2024-11-21 22:26:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.0454545454545454) internal successors, (16169), 15466 states have internal predecessors, (16169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 16169 transitions. [2024-11-21 22:26:54,384 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 16169 transitions. Word has length 935 [2024-11-21 22:26:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:54,386 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 16169 transitions. [2024-11-21 22:26:54,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 16169 transitions. [2024-11-21 22:26:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2024-11-21 22:26:54,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:54,406 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:54,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 22:26:54,406 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:54,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1142866979, now seen corresponding path program 1 times [2024-11-21 22:26:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527107526] [2024-11-21 22:26:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2056 backedges. 954 proven. 0 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2024-11-21 22:26:55,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527107526] [2024-11-21 22:26:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527107526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764817046] [2024-11-21 22:26:55,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:55,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:55,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:55,837 INFO L87 Difference]: Start difference. First operand 15467 states and 16169 transitions. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:56,513 INFO L93 Difference]: Finished difference Result 30274 states and 31674 transitions. [2024-11-21 22:26:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:56,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 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 1044 [2024-11-21 22:26:56,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:56,541 INFO L225 Difference]: With dead ends: 30274 [2024-11-21 22:26:56,542 INFO L226 Difference]: Without dead ends: 15467 [2024-11-21 22:26:56,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:56,555 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 118 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:56,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 377 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:26:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-21 22:26:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 14809. [2024-11-21 22:26:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.0389654240950836) internal successors, (15385), 14808 states have internal predecessors, (15385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:56,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15385 transitions. [2024-11-21 22:26:56,820 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 15385 transitions. Word has length 1044 [2024-11-21 22:26:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:56,821 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 15385 transitions. [2024-11-21 22:26:56,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 15385 transitions. [2024-11-21 22:26:56,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1280 [2024-11-21 22:26:56,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:56,866 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:26:56,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:26:56,867 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:56,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1196485997, now seen corresponding path program 1 times [2024-11-21 22:26:56,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:56,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858740143] [2024-11-21 22:26:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3339 backedges. 1455 proven. 0 refuted. 0 times theorem prover too weak. 1884 trivial. 0 not checked. [2024-11-21 22:26:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858740143] [2024-11-21 22:26:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858740143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:58,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:58,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:58,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347544048] [2024-11-21 22:26:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:58,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:58,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:58,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:58,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:58,026 INFO L87 Difference]: Start difference. First operand 14809 states and 15385 transitions. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:58,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:26:58,760 INFO L93 Difference]: Finished difference Result 32577 states and 33885 transitions. [2024-11-21 22:26:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:26:58,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 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 1279 [2024-11-21 22:26:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:26:58,784 INFO L225 Difference]: With dead ends: 32577 [2024-11-21 22:26:58,784 INFO L226 Difference]: Without dead ends: 16125 [2024-11-21 22:26:58,795 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 [2024-11-21 22:26:58,796 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 195 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:26:58,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 413 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:26:58,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-21 22:26:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 14480. [2024-11-21 22:26:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0350852959458525) internal successors, (14987), 14479 states have internal predecessors, (14987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14987 transitions. [2024-11-21 22:26:58,957 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14987 transitions. Word has length 1279 [2024-11-21 22:26:58,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:26:58,958 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14987 transitions. [2024-11-21 22:26:58,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:26:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14987 transitions. [2024-11-21 22:26:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1399 [2024-11-21 22:26:58,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:26:58,983 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:26:58,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:26:58,984 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:26:58,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:26:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash -54953103, now seen corresponding path program 1 times [2024-11-21 22:26:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:26:58,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226042527] [2024-11-21 22:26:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:26:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:26:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:26:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4540 backedges. 3001 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2024-11-21 22:26:59,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:26:59,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226042527] [2024-11-21 22:26:59,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226042527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:26:59,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:26:59,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:26:59,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779908378] [2024-11-21 22:26:59,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:26:59,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:26:59,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:26:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:26:59,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:26:59,800 INFO L87 Difference]: Start difference. First operand 14480 states and 14987 transitions. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:00,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:00,483 INFO L93 Difference]: Finished difference Result 29287 states and 30335 transitions. [2024-11-21 22:27:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:00,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 1398 [2024-11-21 22:27:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:00,504 INFO L225 Difference]: With dead ends: 29287 [2024-11-21 22:27:00,504 INFO L226 Difference]: Without dead ends: 15467 [2024-11-21 22:27:00,515 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 [2024-11-21 22:27:00,517 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:00,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 419 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-21 22:27:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 14809. [2024-11-21 22:27:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.0304565099945975) internal successors, (15259), 14808 states have internal predecessors, (15259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15259 transitions. [2024-11-21 22:27:00,678 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 15259 transitions. Word has length 1398 [2024-11-21 22:27:00,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:00,679 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 15259 transitions. [2024-11-21 22:27:00,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 15259 transitions. [2024-11-21 22:27:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2024-11-21 22:27:00,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:00,707 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:27:00,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:27:00,708 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:00,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -114477934, now seen corresponding path program 1 times [2024-11-21 22:27:00,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769173529] [2024-11-21 22:27:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4697 backedges. 3134 proven. 0 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2024-11-21 22:27:01,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769173529] [2024-11-21 22:27:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769173529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:01,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:27:01,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:27:01,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829835466] [2024-11-21 22:27:01,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:01,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:01,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:01,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:01,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:27:01,429 INFO L87 Difference]: Start difference. First operand 14809 states and 15259 transitions. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:02,149 INFO L93 Difference]: Finished difference Result 28958 states and 29854 transitions. [2024-11-21 22:27:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:02,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 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 1427 [2024-11-21 22:27:02,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:02,166 INFO L225 Difference]: With dead ends: 28958 [2024-11-21 22:27:02,166 INFO L226 Difference]: Without dead ends: 14809 [2024-11-21 22:27:02,177 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 [2024-11-21 22:27:02,177 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 195 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:02,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 418 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14809 states. [2024-11-21 22:27:02,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 14480. [2024-11-21 22:27:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0242420056633745) internal successors, (14830), 14479 states have internal predecessors, (14830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14830 transitions. [2024-11-21 22:27:02,412 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14830 transitions. Word has length 1427 [2024-11-21 22:27:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:02,413 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14830 transitions. [2024-11-21 22:27:02,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14830 transitions. [2024-11-21 22:27:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2024-11-21 22:27:02,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:02,457 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:02,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 22:27:02,458 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:02,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:02,458 INFO L85 PathProgramCache]: Analyzing trace with hash -570905692, now seen corresponding path program 1 times [2024-11-21 22:27:02,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:02,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578381022] [2024-11-21 22:27:02,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:02,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3818 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 3539 trivial. 0 not checked. [2024-11-21 22:27:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578381022] [2024-11-21 22:27:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578381022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:03,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:27:03,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:27:03,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137641835] [2024-11-21 22:27:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:03,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:27:03,629 INFO L87 Difference]: Start difference. First operand 14480 states and 14830 transitions. Second operand has 3 states, 3 states have (on average 106.0) 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) [2024-11-21 22:27:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:04,011 INFO L93 Difference]: Finished difference Result 14816 states and 15166 transitions. [2024-11-21 22:27:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:04,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) 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 1437 [2024-11-21 22:27:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:04,025 INFO L225 Difference]: With dead ends: 14816 [2024-11-21 22:27:04,026 INFO L226 Difference]: Without dead ends: 14480 [2024-11-21 22:27:04,032 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 [2024-11-21 22:27:04,033 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:04,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-21 22:27:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-21 22:27:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-21 22:27:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0241038745769735) internal successors, (14828), 14479 states have internal predecessors, (14828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14828 transitions. [2024-11-21 22:27:04,166 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14828 transitions. Word has length 1437 [2024-11-21 22:27:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:04,167 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14828 transitions. [2024-11-21 22:27:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) 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) [2024-11-21 22:27:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14828 transitions. [2024-11-21 22:27:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1649 [2024-11-21 22:27:04,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:04,226 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:04,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:27:04,226 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:04,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:04,227 INFO L85 PathProgramCache]: Analyzing trace with hash 545445366, now seen corresponding path program 1 times [2024-11-21 22:27:04,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:04,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298980394] [2024-11-21 22:27:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:04,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5069 backedges. 3482 proven. 84 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2024-11-21 22:27:06,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:06,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298980394] [2024-11-21 22:27:06,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298980394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:27:06,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769741106] [2024-11-21 22:27:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:06,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:06,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:27:06,557 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) [2024-11-21 22:27:06,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:27:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:07,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:27:07,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:27:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5069 backedges. 3091 proven. 0 refuted. 0 times theorem prover too weak. 1978 trivial. 0 not checked. [2024-11-21 22:27:07,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:27:07,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769741106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:07,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:27:07,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-21 22:27:07,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800383589] [2024-11-21 22:27:07,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:07,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:07,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:07,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:07,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:07,457 INFO L87 Difference]: Start difference. First operand 14480 states and 14828 transitions. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:08,103 INFO L93 Difference]: Finished difference Result 28300 states and 28992 transitions. [2024-11-21 22:27:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 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 1648 [2024-11-21 22:27:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:08,116 INFO L225 Difference]: With dead ends: 28300 [2024-11-21 22:27:08,116 INFO L226 Difference]: Without dead ends: 14480 [2024-11-21 22:27:08,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1656 GetRequests, 1651 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:08,126 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 96 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:08,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 53 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-21 22:27:08,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-21 22:27:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0236894813177706) internal successors, (14822), 14479 states have internal predecessors, (14822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14822 transitions. [2024-11-21 22:27:08,256 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14822 transitions. Word has length 1648 [2024-11-21 22:27:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:08,257 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14822 transitions. [2024-11-21 22:27:08,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14822 transitions. [2024-11-21 22:27:08,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2024-11-21 22:27:08,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:08,282 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:08,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-21 22:27:08,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-21 22:27:08,483 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:08,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 547648191, now seen corresponding path program 1 times [2024-11-21 22:27:08,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:08,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214381912] [2024-11-21 22:27:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5644 backedges. 3816 proven. 105 refuted. 0 times theorem prover too weak. 1723 trivial. 0 not checked. [2024-11-21 22:27:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:10,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214381912] [2024-11-21 22:27:10,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214381912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:27:10,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569336515] [2024-11-21 22:27:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:10,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:10,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:27:10,958 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) [2024-11-21 22:27:10,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:27:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:11,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:27:11,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:27:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5644 backedges. 3837 proven. 0 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2024-11-21 22:27:12,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:27:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569336515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:12,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:27:12,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-21 22:27:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753470866] [2024-11-21 22:27:12,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:12,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:12,292 INFO L87 Difference]: Start difference. First operand 14480 states and 14822 transitions. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:12,965 INFO L93 Difference]: Finished difference Result 28300 states and 28980 transitions. [2024-11-21 22:27:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:12,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 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 1715 [2024-11-21 22:27:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:12,977 INFO L225 Difference]: With dead ends: 28300 [2024-11-21 22:27:12,977 INFO L226 Difference]: Without dead ends: 14480 [2024-11-21 22:27:12,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1723 GetRequests, 1718 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:12,985 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:12,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 427 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-21 22:27:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-21 22:27:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0235513502313696) internal successors, (14820), 14479 states have internal predecessors, (14820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14820 transitions. [2024-11-21 22:27:13,089 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14820 transitions. Word has length 1715 [2024-11-21 22:27:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:13,090 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14820 transitions. [2024-11-21 22:27:13,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14820 transitions. [2024-11-21 22:27:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1789 [2024-11-21 22:27:13,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:13,117 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:13,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-21 22:27:13,318 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,SelfDestructingSolverStorable16 [2024-11-21 22:27:13,318 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:13,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:13,319 INFO L85 PathProgramCache]: Analyzing trace with hash -661686790, now seen corresponding path program 1 times [2024-11-21 22:27:13,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:13,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52558173] [2024-11-21 22:27:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:13,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 4293 proven. 0 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2024-11-21 22:27:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:14,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52558173] [2024-11-21 22:27:14,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52558173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:14,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:27:14,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:27:14,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219738732] [2024-11-21 22:27:14,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:14,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:27:14,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:14,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:27:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:27:14,887 INFO L87 Difference]: Start difference. First operand 14480 states and 14820 transitions. Second operand has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:15,847 INFO L93 Difference]: Finished difference Result 28300 states and 28976 transitions. [2024-11-21 22:27:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:27:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 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 1788 [2024-11-21 22:27:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:15,864 INFO L225 Difference]: With dead ends: 28300 [2024-11-21 22:27:15,864 INFO L226 Difference]: Without dead ends: 14480 [2024-11-21 22:27:15,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:27:15,873 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 120 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:15,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 554 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-21 22:27:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-21 22:27:15,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-21 22:27:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0228606947993646) internal successors, (14810), 14479 states have internal predecessors, (14810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 14810 transitions. [2024-11-21 22:27:15,972 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 14810 transitions. Word has length 1788 [2024-11-21 22:27:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:15,973 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 14810 transitions. [2024-11-21 22:27:15,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 14810 transitions. [2024-11-21 22:27:15,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1906 [2024-11-21 22:27:15,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:15,993 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:15,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 22:27:15,994 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:15,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:15,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1355394357, now seen corresponding path program 1 times [2024-11-21 22:27:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:15,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687178322] [2024-11-21 22:27:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:15,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8051 backedges. 4930 proven. 0 refuted. 0 times theorem prover too weak. 3121 trivial. 0 not checked. [2024-11-21 22:27:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:17,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687178322] [2024-11-21 22:27:17,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687178322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:17,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:27:17,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:27:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539051367] [2024-11-21 22:27:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:17,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:17,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:17,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:27:17,475 INFO L87 Difference]: Start difference. First operand 14480 states and 14810 transitions. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:18,129 INFO L93 Difference]: Finished difference Result 28958 states and 29625 transitions. [2024-11-21 22:27:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:18,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 1905 [2024-11-21 22:27:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:18,142 INFO L225 Difference]: With dead ends: 28958 [2024-11-21 22:27:18,142 INFO L226 Difference]: Without dead ends: 15138 [2024-11-21 22:27:18,150 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 [2024-11-21 22:27:18,151 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:18,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 431 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:18,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-21 22:27:18,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138. [2024-11-21 22:27:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15137 states have (on average 1.0221972649798508) internal successors, (15473), 15137 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15473 transitions. [2024-11-21 22:27:18,255 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 15473 transitions. Word has length 1905 [2024-11-21 22:27:18,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:18,255 INFO L471 AbstractCegarLoop]: Abstraction has 15138 states and 15473 transitions. [2024-11-21 22:27:18,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:18,256 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 15473 transitions. [2024-11-21 22:27:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1929 [2024-11-21 22:27:18,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:18,279 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:18,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-21 22:27:18,279 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:18,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash 287987932, now seen corresponding path program 1 times [2024-11-21 22:27:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:18,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224586885] [2024-11-21 22:27:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 5903 proven. 167 refuted. 0 times theorem prover too weak. 1700 trivial. 0 not checked. [2024-11-21 22:27:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:21,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224586885] [2024-11-21 22:27:21,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224586885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:27:21,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451700222] [2024-11-21 22:27:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:21,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:21,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:27:21,075 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) [2024-11-21 22:27:21,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 22:27:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:21,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:27:21,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:27:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 7770 backedges. 4761 proven. 0 refuted. 0 times theorem prover too weak. 3009 trivial. 0 not checked. [2024-11-21 22:27:22,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:27:22,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451700222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:22,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:27:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-21 22:27:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026867528] [2024-11-21 22:27:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:22,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:27:22,164 INFO L87 Difference]: Start difference. First operand 15138 states and 15473 transitions. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:22,808 INFO L93 Difference]: Finished difference Result 29616 states and 30282 transitions. [2024-11-21 22:27:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 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 1928 [2024-11-21 22:27:22,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:22,823 INFO L225 Difference]: With dead ends: 29616 [2024-11-21 22:27:22,824 INFO L226 Difference]: Without dead ends: 15138 [2024-11-21 22:27:22,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1937 GetRequests, 1931 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-21 22:27:22,833 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:22,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 425 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-21 22:27:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 15138. [2024-11-21 22:27:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15137 states have (on average 1.0219330118253287) internal successors, (15469), 15137 states have internal predecessors, (15469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15469 transitions. [2024-11-21 22:27:22,935 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 15469 transitions. Word has length 1928 [2024-11-21 22:27:22,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:22,936 INFO L471 AbstractCegarLoop]: Abstraction has 15138 states and 15469 transitions. [2024-11-21 22:27:22,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 15469 transitions. [2024-11-21 22:27:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1950 [2024-11-21 22:27:22,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:22,957 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:22,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-21 22:27:23,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:23,158 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:23,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1639309374, now seen corresponding path program 1 times [2024-11-21 22:27:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505965307] [2024-11-21 22:27:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7527 backedges. 3719 proven. 0 refuted. 0 times theorem prover too weak. 3808 trivial. 0 not checked. [2024-11-21 22:27:24,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:24,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505965307] [2024-11-21 22:27:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505965307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:24,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:27:24,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:27:24,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499219127] [2024-11-21 22:27:24,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:24,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:24,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:24,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:27:24,830 INFO L87 Difference]: Start difference. First operand 15138 states and 15469 transitions. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:25,598 INFO L93 Difference]: Finished difference Result 33235 states and 33970 transitions. [2024-11-21 22:27:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:25,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 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 1949 [2024-11-21 22:27:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:25,620 INFO L225 Difference]: With dead ends: 33235 [2024-11-21 22:27:25,620 INFO L226 Difference]: Without dead ends: 18757 [2024-11-21 22:27:25,629 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 [2024-11-21 22:27:25,629 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 207 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:25,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 54 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-21 22:27:25,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18757 states. [2024-11-21 22:27:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18757 to 16454. [2024-11-21 22:27:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0216373913571992) internal successors, (16809), 16453 states have internal predecessors, (16809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16809 transitions. [2024-11-21 22:27:25,775 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16809 transitions. Word has length 1949 [2024-11-21 22:27:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:25,776 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16809 transitions. [2024-11-21 22:27:25,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16809 transitions. [2024-11-21 22:27:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1991 [2024-11-21 22:27:25,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:25,798 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 22:27:25,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-21 22:27:25,798 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:25,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:25,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1617375211, now seen corresponding path program 1 times [2024-11-21 22:27:25,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:25,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100671396] [2024-11-21 22:27:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:25,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8332 backedges. 5908 proven. 140 refuted. 0 times theorem prover too weak. 2284 trivial. 0 not checked. [2024-11-21 22:27:27,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:27,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100671396] [2024-11-21 22:27:27,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100671396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:27:27,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4298246] [2024-11-21 22:27:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:27,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:27:27,845 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) [2024-11-21 22:27:27,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 22:27:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:28,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:27:28,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:27:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 8332 backedges. 4952 proven. 0 refuted. 0 times theorem prover too weak. 3380 trivial. 0 not checked. [2024-11-21 22:27:28,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:27:28,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4298246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:28,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:27:28,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-21 22:27:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407332621] [2024-11-21 22:27:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:28,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:28,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:28,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:28,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:28,586 INFO L87 Difference]: Start difference. First operand 16454 states and 16809 transitions. Second operand has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:29,304 INFO L93 Difference]: Finished difference Result 33893 states and 34625 transitions. [2024-11-21 22:27:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 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 1990 [2024-11-21 22:27:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:29,328 INFO L225 Difference]: With dead ends: 33893 [2024-11-21 22:27:29,328 INFO L226 Difference]: Without dead ends: 18099 [2024-11-21 22:27:29,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1995 GetRequests, 1990 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:29,342 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 221 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:29,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 426 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-21 22:27:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2024-11-21 22:27:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 17112. [2024-11-21 22:27:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17111 states have (on average 1.020396236339197) internal successors, (17460), 17111 states have internal predecessors, (17460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 17460 transitions. [2024-11-21 22:27:29,523 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 17460 transitions. Word has length 1990 [2024-11-21 22:27:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:29,524 INFO L471 AbstractCegarLoop]: Abstraction has 17112 states and 17460 transitions. [2024-11-21 22:27:29,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:29,524 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 17460 transitions. [2024-11-21 22:27:29,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2022 [2024-11-21 22:27:29,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:27:29,557 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 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, 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, 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] [2024-11-21 22:27:29,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 22:27:29,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:29,758 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:27:29,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:27:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -826436040, now seen corresponding path program 1 times [2024-11-21 22:27:29,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:27:29,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378062901] [2024-11-21 22:27:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:27:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8749 backedges. 6496 proven. 78 refuted. 0 times theorem prover too weak. 2175 trivial. 0 not checked. [2024-11-21 22:27:31,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:27:31,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378062901] [2024-11-21 22:27:31,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378062901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:27:31,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527844416] [2024-11-21 22:27:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:27:31,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:27:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:27:31,717 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) [2024-11-21 22:27:31,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 22:27:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:27:32,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 22:27:32,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:27:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8749 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 8270 trivial. 0 not checked. [2024-11-21 22:27:33,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:27:33,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527844416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:27:33,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:27:33,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-21 22:27:33,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724713405] [2024-11-21 22:27:33,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:27:33,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:27:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:27:33,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:27:33,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:33,141 INFO L87 Difference]: Start difference. First operand 17112 states and 17460 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:27:34,271 INFO L93 Difference]: Finished difference Result 34220 states and 34922 transitions. [2024-11-21 22:27:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:27:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 2021 [2024-11-21 22:27:34,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:27:34,274 INFO L225 Difference]: With dead ends: 34220 [2024-11-21 22:27:34,274 INFO L226 Difference]: Without dead ends: 0 [2024-11-21 22:27:34,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2026 GetRequests, 2021 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:27:34,283 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 291 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:27:34,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 429 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-21 22:27:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-21 22:27:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-21 22:27:34,284 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) [2024-11-21 22:27:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-21 22:27:34,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2021 [2024-11-21 22:27:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:27:34,285 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-21 22:27:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:27:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-21 22:27:34,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-21 22:27:34,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 22:27:34,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-21 22:27:34,488 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,SelfDestructingSolverStorable22 [2024-11-21 22:27:34,491 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:27:34,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-21 22:27:36,015 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 22:27:36,035 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-21 22:27:36,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:27:36 BoogieIcfgContainer [2024-11-21 22:27:36,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 22:27:36,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 22:27:36,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 22:27:36,042 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 22:27:36,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:26:33" (3/4) ... [2024-11-21 22:27:36,045 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-21 22:27:36,076 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-21 22:27:36,078 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-21 22:27:36,080 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-21 22:27:36,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-21 22:27:36,288 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-21 22:27:36,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-21 22:27:36,289 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 22:27:36,294 INFO L158 Benchmark]: Toolchain (without parser) took 66618.21ms. Allocated memory was 138.4MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 63.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-21 22:27:36,294 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 102.1MB in the beginning and 101.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 22:27:36,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 922.70ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 93.6MB in the end (delta: -30.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-21 22:27:36,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.99ms. Allocated memory is still 178.3MB. Free memory was 93.6MB in the beginning and 124.1MB in the end (delta: -30.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-11-21 22:27:36,295 INFO L158 Benchmark]: Boogie Preprocessor took 232.95ms. Allocated memory is still 178.3MB. Free memory was 124.1MB in the beginning and 116.4MB in the end (delta: 7.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-21 22:27:36,295 INFO L158 Benchmark]: RCFGBuilder took 2120.86ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 116.3MB in the beginning and 215.4MB in the end (delta: -99.1MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. [2024-11-21 22:27:36,297 INFO L158 Benchmark]: TraceAbstraction took 62889.22ms. Allocated memory was 281.0MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 215.4MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-21 22:27:36,297 INFO L158 Benchmark]: Witness Printer took 247.70ms. Allocated memory is still 2.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-21 22:27:36,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 102.1MB in the beginning and 101.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 922.70ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 63.6MB in the beginning and 93.6MB in the end (delta: -30.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 195.99ms. Allocated memory is still 178.3MB. Free memory was 93.6MB in the beginning and 124.1MB in the end (delta: -30.5MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 232.95ms. Allocated memory is still 178.3MB. Free memory was 124.1MB in the beginning and 116.4MB in the end (delta: 7.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2120.86ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 116.3MB in the beginning and 215.4MB in the end (delta: -99.1MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. * TraceAbstraction took 62889.22ms. Allocated memory was 281.0MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 215.4MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 247.70ms. Allocated memory is still 2.6GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 143]: 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, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.3s, OverallIterations: 23, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5403 SdHoareTripleChecker+Valid, 21.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5403 mSDsluCounter, 6913 SdHoareTripleChecker+Invalid, 17.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 2602 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20870 IncrementalHoareTripleChecker+Invalid, 23472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2602 mSolverCounterUnsat, 6637 mSDtfsCounter, 20870 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9394 GetRequests, 9344 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17112occurred in iteration=22, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 7900 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 26.8s InterpolantComputationTime, 35503 NumberOfCodeBlocks, 35503 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 35475 ConstructedInterpolants, 40 QuantifiedInterpolants, 68394 SizeOfPredicates, 1 NumberOfNonLiveVariables, 10717 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 117858/118432 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: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a12 == 9) && (a15 <= 3)) && (a16 != 8)) || (((a15 <= 3) && (a18 <= 132)) && (7 == a12))) || (((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a12 <= 6))) || (((a15 <= 3) && (158 <= a18)) && (a12 <= 6))) || ((((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a12 == 8)) && (a18 <= 132))) || ((a16 <= 8) && (a12 <= 5))) || (((a16 == 9) && (a18 <= 132)) && (a12 <= 8))) || (((a15 <= 3) && (a16 <= 11)) && (7 == a12))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a18 <= 132)) && (a12 <= 6))) || ((a12 <= 5) && (a15 <= 3))) || ((((a16 == 8) && (a15 == 4)) && (((long long) a18 + 388559) <= 0)) && (a12 == 6))) || (((a16 <= 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || (((a16 <= 8) && (a12 == 9)) && (a15 <= 3))) || (((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a15 <= 3))) || (((a12 <= 6) && (a16 <= 11)) && (a16 != 8))) || (((a16 <= 8) && (a12 == 9)) && (a15 != 3))) || (((a15 <= 3) && (a12 == 8)) && (158 <= a18))) || (((a16 <= 8) && (a15 <= 3)) && (a12 <= 7))) || (((a15 <= 3) && (a12 == 8)) && (a18 <= 132))) || (((a15 <= 3) && (a12 == 8)) && (a16 <= 11))) || (((a12 == 9) && (135 <= a18)) && (a15 == 3))) || (((a16 == 9) && (a15 != 3)) && (7 == a12))) || (((a12 == 9) && (a16 == 9)) && (a15 != 3))) || ((a16 <= 8) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-11-21 22:27:36,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE