./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 799588e54c3039b2c8c519a723f8c91c1a6dd7c6903655309c138fca54077fbe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 00:54:28,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 00:54:28,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 00:54:28,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 00:54:28,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 00:54:28,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 00:54:28,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 00:54:28,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 00:54:28,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 00:54:28,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 00:54:28,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 00:54:28,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 00:54:28,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 00:54:28,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 00:54:28,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 00:54:28,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 00:54:28,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 00:54:28,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 00:54:28,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 00:54:28,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 00:54:28,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 00:54:28,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 00:54:28,643 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 00:54:28,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 00:54:28,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 00:54:28,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 00:54:28,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 00:54:28,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 00:54:28,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 00:54:28,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:54:28,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 00:54:28,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 00:54:28,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 00:54:28,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 00:54:28,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 00:54:28,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 00:54:28,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 00:54:28,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 00:54:28,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 00:54:28,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 799588e54c3039b2c8c519a723f8c91c1a6dd7c6903655309c138fca54077fbe [2024-11-12 00:54:28,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 00:54:28,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 00:54:28,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 00:54:28,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 00:54:28,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 00:54:28,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c [2024-11-12 00:54:30,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 00:54:30,684 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 00:54:30,685 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c [2024-11-12 00:54:30,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee3b8fbd2/7dec31b1136845b0b5349304148e1a23/FLAG6028fa888 [2024-11-12 00:54:31,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee3b8fbd2/7dec31b1136845b0b5349304148e1a23 [2024-11-12 00:54:31,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 00:54:31,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 00:54:31,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 00:54:31,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 00:54:31,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 00:54:31,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:31,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7a0524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31, skipping insertion in model container [2024-11-12 00:54:31,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:31,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 00:54:31,277 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c[1259,1272] [2024-11-12 00:54:31,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:54:31,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 00:54:31,532 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p5.c[1259,1272] [2024-11-12 00:54:31,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:54:31,668 INFO L204 MainTranslator]: Completed translation [2024-11-12 00:54:31,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31 WrapperNode [2024-11-12 00:54:31,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 00:54:31,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 00:54:31,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 00:54:31,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 00:54:31,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:31,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,030 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2120 [2024-11-12 00:54:32,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 00:54:32,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 00:54:32,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 00:54:32,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 00:54:32,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,188 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]. [2024-11-12 00:54:32,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 00:54:32,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 00:54:32,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 00:54:32,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 00:54:32,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (1/1) ... [2024-11-12 00:54:32,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:54:32,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:32,384 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) [2024-11-12 00:54:32,386 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 [2024-11-12 00:54:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 00:54:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 00:54:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 00:54:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 00:54:32,682 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 00:54:32,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 00:54:34,864 INFO L? ?]: Removed 1281 outVars from TransFormulas that were not future-live. [2024-11-12 00:54:34,864 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 00:54:34,900 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 00:54:34,900 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 00:54:34,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:34 BoogieIcfgContainer [2024-11-12 00:54:34,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 00:54:34,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 00:54:34,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 00:54:34,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 00:54:34,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:31" (1/3) ... [2024-11-12 00:54:34,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd9fc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:34, skipping insertion in model container [2024-11-12 00:54:34,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:31" (2/3) ... [2024-11-12 00:54:34,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd9fc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:34, skipping insertion in model container [2024-11-12 00:54:34,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:34" (3/3) ... [2024-11-12 00:54:34,912 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p5.c [2024-11-12 00:54:34,929 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 00:54:34,930 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 00:54:35,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 00:54:35,021 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;@584ae19f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 00:54:35,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 00:54:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 648 states, 646 states have (on average 1.5) internal successors, (969), 647 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-12 00:54:35,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:35,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:35,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:35,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:35,045 INFO L85 PathProgramCache]: Analyzing trace with hash -725709712, now seen corresponding path program 1 times [2024-11-12 00:54:35,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437564857] [2024-11-12 00:54:35,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:35,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437564857] [2024-11-12 00:54:35,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437564857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:35,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:35,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:54:35,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089158038] [2024-11-12 00:54:35,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:35,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:54:35,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:54:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:35,802 INFO L87 Difference]: Start difference. First operand has 648 states, 646 states have (on average 1.5) internal successors, (969), 647 states have internal predecessors, (969), 0 states have call successors, (0), 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 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:35,938 INFO L93 Difference]: Finished difference Result 1241 states and 1859 transitions. [2024-11-12 00:54:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:54:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-12 00:54:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:35,962 INFO L225 Difference]: With dead ends: 1241 [2024-11-12 00:54:35,963 INFO L226 Difference]: Without dead ends: 647 [2024-11-12 00:54:35,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:35,975 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:35,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2883 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-12 00:54:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2024-11-12 00:54:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.4969040247678018) internal successors, (967), 646 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 967 transitions. [2024-11-12 00:54:36,077 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 967 transitions. Word has length 51 [2024-11-12 00:54:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:36,078 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 967 transitions. [2024-11-12 00:54:36,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,079 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 967 transitions. [2024-11-12 00:54:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-12 00:54:36,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:36,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:36,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 00:54:36,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:36,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1020469140, now seen corresponding path program 1 times [2024-11-12 00:54:36,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816794247] [2024-11-12 00:54:36,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:36,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:36,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816794247] [2024-11-12 00:54:36,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816794247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:36,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:36,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:54:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271472574] [2024-11-12 00:54:36,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:36,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:54:36,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:36,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:54:36,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:36,366 INFO L87 Difference]: Start difference. First operand 647 states and 967 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:36,415 INFO L93 Difference]: Finished difference Result 1242 states and 1857 transitions. [2024-11-12 00:54:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:54:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-12 00:54:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:36,419 INFO L225 Difference]: With dead ends: 1242 [2024-11-12 00:54:36,420 INFO L226 Difference]: Without dead ends: 649 [2024-11-12 00:54:36,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:36,422 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:36,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2879 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-12 00:54:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2024-11-12 00:54:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.4953703703703705) internal successors, (969), 648 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 969 transitions. [2024-11-12 00:54:36,449 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 969 transitions. Word has length 52 [2024-11-12 00:54:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:36,450 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 969 transitions. [2024-11-12 00:54:36,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 969 transitions. [2024-11-12 00:54:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-12 00:54:36,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:36,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:36,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 00:54:36,455 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:36,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1627229385, now seen corresponding path program 1 times [2024-11-12 00:54:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:36,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909993817] [2024-11-12 00:54:36,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:36,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:36,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:36,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909993817] [2024-11-12 00:54:36,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909993817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:36,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:36,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:54:36,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207695849] [2024-11-12 00:54:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:36,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:54:36,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:36,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:54:36,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:36,910 INFO L87 Difference]: Start difference. First operand 649 states and 969 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:37,111 INFO L93 Difference]: Finished difference Result 1464 states and 2184 transitions. [2024-11-12 00:54:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:54:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-12 00:54:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:37,115 INFO L225 Difference]: With dead ends: 1464 [2024-11-12 00:54:37,115 INFO L226 Difference]: Without dead ends: 869 [2024-11-12 00:54:37,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:37,118 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 368 mSDsluCounter, 5600 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 6547 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:37,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 6547 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-12 00:54:37,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 678. [2024-11-12 00:54:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 1.4933530280649927) internal successors, (1011), 677 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1011 transitions. [2024-11-12 00:54:37,137 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1011 transitions. Word has length 53 [2024-11-12 00:54:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:37,140 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 1011 transitions. [2024-11-12 00:54:37,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1011 transitions. [2024-11-12 00:54:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-12 00:54:37,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:37,142 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:37,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 00:54:37,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:37,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash -186609517, now seen corresponding path program 1 times [2024-11-12 00:54:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:37,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135882548] [2024-11-12 00:54:37,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:37,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:37,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135882548] [2024-11-12 00:54:37,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135882548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:37,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:37,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 00:54:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280144256] [2024-11-12 00:54:37,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:37,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 00:54:37,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 00:54:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:37,667 INFO L87 Difference]: Start difference. First operand 678 states and 1011 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:37,917 INFO L93 Difference]: Finished difference Result 1466 states and 2185 transitions. [2024-11-12 00:54:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 00:54:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-12 00:54:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:37,921 INFO L225 Difference]: With dead ends: 1466 [2024-11-12 00:54:37,921 INFO L226 Difference]: Without dead ends: 871 [2024-11-12 00:54:37,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-12 00:54:37,923 INFO L435 NwaCegarLoop]: 946 mSDtfsCounter, 369 mSDsluCounter, 7479 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 8425 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:37,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 8425 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-12 00:54:37,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 681. [2024-11-12 00:54:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 1.4926470588235294) internal successors, (1015), 680 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1015 transitions. [2024-11-12 00:54:37,938 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1015 transitions. Word has length 54 [2024-11-12 00:54:37,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:37,939 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1015 transitions. [2024-11-12 00:54:37,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1015 transitions. [2024-11-12 00:54:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-12 00:54:37,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:37,940 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:37,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 00:54:37,942 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:37,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2028091489, now seen corresponding path program 1 times [2024-11-12 00:54:37,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:37,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259766287] [2024-11-12 00:54:37,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259766287] [2024-11-12 00:54:38,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259766287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:38,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 00:54:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285087546] [2024-11-12 00:54:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 00:54:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 00:54:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:38,161 INFO L87 Difference]: Start difference. First operand 681 states and 1015 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:38,291 INFO L93 Difference]: Finished difference Result 1483 states and 2208 transitions. [2024-11-12 00:54:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:38,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-12 00:54:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:38,295 INFO L225 Difference]: With dead ends: 1483 [2024-11-12 00:54:38,296 INFO L226 Difference]: Without dead ends: 875 [2024-11-12 00:54:38,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:38,299 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 359 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:38,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 5620 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-12 00:54:38,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 682. [2024-11-12 00:54:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4904552129221733) internal successors, (1015), 681 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1015 transitions. [2024-11-12 00:54:38,315 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1015 transitions. Word has length 54 [2024-11-12 00:54:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:38,315 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1015 transitions. [2024-11-12 00:54:38,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1015 transitions. [2024-11-12 00:54:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-12 00:54:38,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:38,317 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:38,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 00:54:38,317 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:38,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:38,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1170581146, now seen corresponding path program 1 times [2024-11-12 00:54:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:38,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638934585] [2024-11-12 00:54:38,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:38,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:38,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:38,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638934585] [2024-11-12 00:54:38,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638934585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:38,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 00:54:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539116791] [2024-11-12 00:54:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:38,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 00:54:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 00:54:38,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:54:38,878 INFO L87 Difference]: Start difference. First operand 682 states and 1015 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:39,158 INFO L93 Difference]: Finished difference Result 1471 states and 2190 transitions. [2024-11-12 00:54:39,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:54:39,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-12 00:54:39,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:39,162 INFO L225 Difference]: With dead ends: 1471 [2024-11-12 00:54:39,162 INFO L226 Difference]: Without dead ends: 876 [2024-11-12 00:54:39,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-12 00:54:39,166 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 371 mSDsluCounter, 7453 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 8395 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:39,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 8395 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-12 00:54:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 686. [2024-11-12 00:54:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.489051094890511) internal successors, (1020), 685 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1020 transitions. [2024-11-12 00:54:39,183 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1020 transitions. Word has length 55 [2024-11-12 00:54:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:39,184 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 1020 transitions. [2024-11-12 00:54:39,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,184 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1020 transitions. [2024-11-12 00:54:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-12 00:54:39,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:39,185 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:39,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 00:54:39,185 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:39,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:39,185 INFO L85 PathProgramCache]: Analyzing trace with hash 709035362, now seen corresponding path program 1 times [2024-11-12 00:54:39,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:39,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517887166] [2024-11-12 00:54:39,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:39,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:39,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:39,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517887166] [2024-11-12 00:54:39,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517887166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:39,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:54:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230580109] [2024-11-12 00:54:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:54:39,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:54:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:39,359 INFO L87 Difference]: Start difference. First operand 686 states and 1020 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:39,437 INFO L93 Difference]: Finished difference Result 1778 states and 2648 transitions. [2024-11-12 00:54:39,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:39,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-12 00:54:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:39,442 INFO L225 Difference]: With dead ends: 1778 [2024-11-12 00:54:39,442 INFO L226 Difference]: Without dead ends: 1166 [2024-11-12 00:54:39,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:39,444 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 804 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:39,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 3740 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-12 00:54:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 682. [2024-11-12 00:54:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4889867841409692) internal successors, (1014), 681 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1014 transitions. [2024-11-12 00:54:39,468 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1014 transitions. Word has length 55 [2024-11-12 00:54:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:39,468 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1014 transitions. [2024-11-12 00:54:39,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1014 transitions. [2024-11-12 00:54:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 00:54:39,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:39,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:39,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 00:54:39,470 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:39,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash -363731758, now seen corresponding path program 1 times [2024-11-12 00:54:39,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:39,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574900304] [2024-11-12 00:54:39,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:39,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:39,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574900304] [2024-11-12 00:54:39,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574900304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:39,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:39,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:54:39,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35132210] [2024-11-12 00:54:39,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:39,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:54:39,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:54:39,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:39,897 INFO L87 Difference]: Start difference. First operand 682 states and 1014 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:39,952 INFO L93 Difference]: Finished difference Result 1287 states and 1917 transitions. [2024-11-12 00:54:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:54:39,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-12 00:54:39,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:39,955 INFO L225 Difference]: With dead ends: 1287 [2024-11-12 00:54:39,955 INFO L226 Difference]: Without dead ends: 688 [2024-11-12 00:54:39,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:39,959 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 927 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:39,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2874 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:39,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-12 00:54:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-12 00:54:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4861717612809315) internal successors, (1021), 687 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1021 transitions. [2024-11-12 00:54:39,975 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1021 transitions. Word has length 56 [2024-11-12 00:54:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:39,975 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1021 transitions. [2024-11-12 00:54:39,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1021 transitions. [2024-11-12 00:54:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:39,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:39,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:39,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 00:54:39,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:39,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1723962207, now seen corresponding path program 1 times [2024-11-12 00:54:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:39,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50308233] [2024-11-12 00:54:39,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:40,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:40,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50308233] [2024-11-12 00:54:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50308233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:40,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:54:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943201380] [2024-11-12 00:54:40,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:40,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:54:40,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:54:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:40,215 INFO L87 Difference]: Start difference. First operand 688 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:40,304 INFO L93 Difference]: Finished difference Result 1413 states and 2101 transitions. [2024-11-12 00:54:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:40,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:40,307 INFO L225 Difference]: With dead ends: 1413 [2024-11-12 00:54:40,307 INFO L226 Difference]: Without dead ends: 804 [2024-11-12 00:54:40,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:40,309 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 259 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:40,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 3715 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-12 00:54:40,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 679. [2024-11-12 00:54:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 678 states have (on average 1.4867256637168142) internal successors, (1008), 678 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1008 transitions. [2024-11-12 00:54:40,322 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1008 transitions. Word has length 57 [2024-11-12 00:54:40,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:40,322 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 1008 transitions. [2024-11-12 00:54:40,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,323 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1008 transitions. [2024-11-12 00:54:40,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-12 00:54:40,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:40,326 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:40,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 00:54:40,326 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:40,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash 459090266, now seen corresponding path program 1 times [2024-11-12 00:54:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204020469] [2024-11-12 00:54:40,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:40,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:43,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:43,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204020469] [2024-11-12 00:54:43,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204020469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:43,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 00:54:43,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227119971] [2024-11-12 00:54:43,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:43,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 00:54:43,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 00:54:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:43,005 INFO L87 Difference]: Start difference. First operand 679 states and 1008 transitions. Second operand has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 7 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:43,137 INFO L93 Difference]: Finished difference Result 1755 states and 2617 transitions. [2024-11-12 00:54:43,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:43,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 7 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2024-11-12 00:54:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:43,146 INFO L225 Difference]: With dead ends: 1755 [2024-11-12 00:54:43,146 INFO L226 Difference]: Without dead ends: 1157 [2024-11-12 00:54:43,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:43,148 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 790 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:43,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 4700 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:43,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-12 00:54:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 696. [2024-11-12 00:54:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 695 states have (on average 1.4820143884892085) internal successors, (1030), 695 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1030 transitions. [2024-11-12 00:54:43,168 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1030 transitions. Word has length 349 [2024-11-12 00:54:43,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:43,168 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 1030 transitions. [2024-11-12 00:54:43,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 7 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1030 transitions. [2024-11-12 00:54:43,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-12 00:54:43,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:43,176 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:43,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 00:54:43,177 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:43,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1118476680, now seen corresponding path program 1 times [2024-11-12 00:54:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043223249] [2024-11-12 00:54:43,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:45,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:45,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043223249] [2024-11-12 00:54:45,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043223249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:54:45,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915600393] [2024-11-12 00:54:45,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:45,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:45,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:45,291 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) [2024-11-12 00:54:45,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 00:54:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:46,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-12 00:54:46,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:54:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:47,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:54:47,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915600393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:47,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:54:47,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-12 00:54:47,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135039575] [2024-11-12 00:54:47,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:47,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 00:54:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 00:54:47,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:47,194 INFO L87 Difference]: Start difference. First operand 696 states and 1030 transitions. Second operand has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:47,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:47,274 INFO L93 Difference]: Finished difference Result 2247 states and 3353 transitions. [2024-11-12 00:54:47,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:47,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2024-11-12 00:54:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:47,282 INFO L225 Difference]: With dead ends: 2247 [2024-11-12 00:54:47,282 INFO L226 Difference]: Without dead ends: 1649 [2024-11-12 00:54:47,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:47,285 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 1632 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 5271 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:47,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 5271 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-12 00:54:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1188. [2024-11-12 00:54:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1187 states have (on average 1.4877843302443134) internal successors, (1766), 1187 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1766 transitions. [2024-11-12 00:54:47,317 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1766 transitions. Word has length 350 [2024-11-12 00:54:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:47,318 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1766 transitions. [2024-11-12 00:54:47,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1766 transitions. [2024-11-12 00:54:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-12 00:54:47,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:47,323 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:47,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 00:54:47,527 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,SelfDestructingSolverStorable10 [2024-11-12 00:54:47,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:47,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1430469103, now seen corresponding path program 1 times [2024-11-12 00:54:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072948909] [2024-11-12 00:54:47,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:48,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:48,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072948909] [2024-11-12 00:54:48,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072948909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:48,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:48,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:54:48,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293287450] [2024-11-12 00:54:48,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:48,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:54:48,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:54:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:48,627 INFO L87 Difference]: Start difference. First operand 1188 states and 1766 transitions. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:48,716 INFO L93 Difference]: Finished difference Result 2561 states and 3820 transitions. [2024-11-12 00:54:48,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:48,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-12 00:54:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:48,723 INFO L225 Difference]: With dead ends: 2561 [2024-11-12 00:54:48,723 INFO L226 Difference]: Without dead ends: 1469 [2024-11-12 00:54:48,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:48,726 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 310 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:48,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 3735 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:48,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-11-12 00:54:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1177. [2024-11-12 00:54:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1176 states have (on average 1.4880952380952381) internal successors, (1750), 1176 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1750 transitions. [2024-11-12 00:54:48,758 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1750 transitions. Word has length 351 [2024-11-12 00:54:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:48,759 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1750 transitions. [2024-11-12 00:54:48,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1750 transitions. [2024-11-12 00:54:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-12 00:54:48,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:48,766 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:48,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 00:54:48,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:48,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:48,767 INFO L85 PathProgramCache]: Analyzing trace with hash 560722142, now seen corresponding path program 1 times [2024-11-12 00:54:48,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:48,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894256733] [2024-11-12 00:54:48,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:48,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894256733] [2024-11-12 00:54:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894256733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:54:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726267209] [2024-11-12 00:54:50,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:50,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:50,809 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) [2024-11-12 00:54:50,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 00:54:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:51,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-12 00:54:51,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:54:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:53,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:54:53,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726267209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:53,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:54:53,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 16 [2024-11-12 00:54:53,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762428292] [2024-11-12 00:54:53,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:53,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 00:54:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 00:54:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-11-12 00:54:53,246 INFO L87 Difference]: Start difference. First operand 1177 states and 1750 transitions. Second operand has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:53,538 INFO L93 Difference]: Finished difference Result 3474 states and 5191 transitions. [2024-11-12 00:54:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 00:54:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-12 00:54:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:53,546 INFO L225 Difference]: With dead ends: 3474 [2024-11-12 00:54:53,546 INFO L226 Difference]: Without dead ends: 1937 [2024-11-12 00:54:53,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:53,549 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 988 mSDsluCounter, 8105 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:53,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 9047 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-12 00:54:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1654. [2024-11-12 00:54:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1653 states have (on average 1.4906231094978826) internal successors, (2464), 1653 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2464 transitions. [2024-11-12 00:54:53,587 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2464 transitions. Word has length 351 [2024-11-12 00:54:53,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:53,588 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2464 transitions. [2024-11-12 00:54:53,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2464 transitions. [2024-11-12 00:54:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-12 00:54:53,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:53,594 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:53,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 00:54:53,794 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,SelfDestructingSolverStorable12 [2024-11-12 00:54:53,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:53,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:53,796 INFO L85 PathProgramCache]: Analyzing trace with hash -912530353, now seen corresponding path program 1 times [2024-11-12 00:54:53,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:53,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619686925] [2024-11-12 00:54:53,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:53,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:54,648 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:54,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:54,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619686925] [2024-11-12 00:54:54,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619686925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:54,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:54,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:54:54,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728042132] [2024-11-12 00:54:54,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:54:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:54,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:54:54,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:54,651 INFO L87 Difference]: Start difference. First operand 1654 states and 2464 transitions. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:54,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:54,737 INFO L93 Difference]: Finished difference Result 2879 states and 4296 transitions. [2024-11-12 00:54:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:54,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2024-11-12 00:54:54,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:54,742 INFO L225 Difference]: With dead ends: 2879 [2024-11-12 00:54:54,742 INFO L226 Difference]: Without dead ends: 1338 [2024-11-12 00:54:54,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:54,745 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 298 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 4684 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:54,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 4684 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-12 00:54:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1197. [2024-11-12 00:54:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1196 states have (on average 1.4849498327759196) internal successors, (1776), 1196 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1776 transitions. [2024-11-12 00:54:54,768 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1776 transitions. Word has length 351 [2024-11-12 00:54:54,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:54,768 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 1776 transitions. [2024-11-12 00:54:54,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1776 transitions. [2024-11-12 00:54:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-12 00:54:54,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:54,773 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:54,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 00:54:54,774 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:54,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:54,774 INFO L85 PathProgramCache]: Analyzing trace with hash -490388496, now seen corresponding path program 1 times [2024-11-12 00:54:54,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:54,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408524944] [2024-11-12 00:54:54,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:54,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:56,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:56,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408524944] [2024-11-12 00:54:56,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408524944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:56,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:56,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:54:56,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350686942] [2024-11-12 00:54:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:56,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:54:56,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:54:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:56,412 INFO L87 Difference]: Start difference. First operand 1197 states and 1776 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:56,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:56,463 INFO L93 Difference]: Finished difference Result 2286 states and 3405 transitions. [2024-11-12 00:54:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:56,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2024-11-12 00:54:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:56,469 INFO L225 Difference]: With dead ends: 2286 [2024-11-12 00:54:56,469 INFO L226 Difference]: Without dead ends: 1205 [2024-11-12 00:54:56,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:56,471 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 6 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:56,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3831 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-12 00:54:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1203. [2024-11-12 00:54:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1202 states have (on average 1.4841930116472546) internal successors, (1784), 1202 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1784 transitions. [2024-11-12 00:54:56,501 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1784 transitions. Word has length 352 [2024-11-12 00:54:56,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:56,501 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1784 transitions. [2024-11-12 00:54:56,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:56,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1784 transitions. [2024-11-12 00:54:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-12 00:54:56,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:56,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:56,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 00:54:56,506 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:56,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 235273646, now seen corresponding path program 1 times [2024-11-12 00:54:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:56,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758480089] [2024-11-12 00:54:56,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:56,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:58,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:58,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758480089] [2024-11-12 00:54:58,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758480089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:58,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:58,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:54:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814127887] [2024-11-12 00:54:58,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:58,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:54:58,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:58,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:54:58,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:58,349 INFO L87 Difference]: Start difference. First operand 1203 states and 1784 transitions. Second operand has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:58,466 INFO L93 Difference]: Finished difference Result 2387 states and 3554 transitions. [2024-11-12 00:54:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:54:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2024-11-12 00:54:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:58,471 INFO L225 Difference]: With dead ends: 2387 [2024-11-12 00:54:58,471 INFO L226 Difference]: Without dead ends: 1300 [2024-11-12 00:54:58,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:54:58,473 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 230 mSDsluCounter, 5621 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:58,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 6572 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-12 00:54:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1272. [2024-11-12 00:54:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 1.4838709677419355) internal successors, (1886), 1271 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1886 transitions. [2024-11-12 00:54:58,498 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1886 transitions. Word has length 353 [2024-11-12 00:54:58,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:58,498 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1886 transitions. [2024-11-12 00:54:58,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1886 transitions. [2024-11-12 00:54:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-12 00:54:58,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:58,501 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:58,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 00:54:58,502 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:58,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1279187095, now seen corresponding path program 1 times [2024-11-12 00:54:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550950539] [2024-11-12 00:54:58,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:00,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550950539] [2024-11-12 00:55:00,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550950539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:00,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:00,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:55:00,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329809942] [2024-11-12 00:55:00,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:00,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:55:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:55:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:00,271 INFO L87 Difference]: Start difference. First operand 1272 states and 1886 transitions. Second operand has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:00,337 INFO L93 Difference]: Finished difference Result 2429 states and 3615 transitions. [2024-11-12 00:55:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:55:00,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2024-11-12 00:55:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:00,342 INFO L225 Difference]: With dead ends: 2429 [2024-11-12 00:55:00,342 INFO L226 Difference]: Without dead ends: 1342 [2024-11-12 00:55:00,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:55:00,344 INFO L435 NwaCegarLoop]: 1006 mSDtfsCounter, 60 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:00,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4019 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:55:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-12 00:55:00,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1290. [2024-11-12 00:55:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 1.4817688130333593) internal successors, (1910), 1289 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1910 transitions. [2024-11-12 00:55:00,367 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1910 transitions. Word has length 354 [2024-11-12 00:55:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:00,367 INFO L471 AbstractCegarLoop]: Abstraction has 1290 states and 1910 transitions. [2024-11-12 00:55:00,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1910 transitions. [2024-11-12 00:55:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-12 00:55:00,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:00,370 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:00,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 00:55:00,370 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:00,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:00,371 INFO L85 PathProgramCache]: Analyzing trace with hash -4508299, now seen corresponding path program 1 times [2024-11-12 00:55:00,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:00,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801823257] [2024-11-12 00:55:00,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:00,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:01,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801823257] [2024-11-12 00:55:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801823257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414201742] [2024-11-12 00:55:01,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:01,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:01,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:55:01,780 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) [2024-11-12 00:55:01,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 00:55:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:02,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 2081 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-12 00:55:02,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:55:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:02,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:55:02,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414201742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:02,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:55:02,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-12 00:55:02,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121107877] [2024-11-12 00:55:02,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:02,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 00:55:02,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:02,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 00:55:02,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:55:02,804 INFO L87 Difference]: Start difference. First operand 1290 states and 1910 transitions. Second operand has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:02,877 INFO L93 Difference]: Finished difference Result 2675 states and 3979 transitions. [2024-11-12 00:55:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:55:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2024-11-12 00:55:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:02,884 INFO L225 Difference]: With dead ends: 2675 [2024-11-12 00:55:02,884 INFO L226 Difference]: Without dead ends: 1570 [2024-11-12 00:55:02,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:55:02,886 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 215 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 4903 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:02,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 4903 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:55:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-12 00:55:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1460. [2024-11-12 00:55:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 1.4818368745716244) internal successors, (2162), 1459 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2162 transitions. [2024-11-12 00:55:02,916 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2162 transitions. Word has length 355 [2024-11-12 00:55:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:02,917 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 2162 transitions. [2024-11-12 00:55:02,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2162 transitions. [2024-11-12 00:55:02,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-12 00:55:02,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:02,920 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:02,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 00:55:03,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-12 00:55:03,121 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:03,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash 388643959, now seen corresponding path program 1 times [2024-11-12 00:55:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:03,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655920766] [2024-11-12 00:55:03,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:03,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:04,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:04,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655920766] [2024-11-12 00:55:04,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655920766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:04,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:04,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:55:04,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170804484] [2024-11-12 00:55:04,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:04,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:55:04,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:04,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:55:04,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:55:04,599 INFO L87 Difference]: Start difference. First operand 1460 states and 2162 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:04,651 INFO L93 Difference]: Finished difference Result 2927 states and 4351 transitions. [2024-11-12 00:55:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:55:04,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2024-11-12 00:55:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:04,663 INFO L225 Difference]: With dead ends: 2927 [2024-11-12 00:55:04,664 INFO L226 Difference]: Without dead ends: 1652 [2024-11-12 00:55:04,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:55:04,667 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 94 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:04,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 3831 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:55:04,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-11-12 00:55:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1648. [2024-11-12 00:55:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1647 states have (on average 1.482695810564663) internal successors, (2442), 1647 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2442 transitions. [2024-11-12 00:55:04,700 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2442 transitions. Word has length 356 [2024-11-12 00:55:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:04,701 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2442 transitions. [2024-11-12 00:55:04,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2442 transitions. [2024-11-12 00:55:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-12 00:55:04,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:04,704 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:04,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 00:55:04,704 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:04,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:04,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1386343176, now seen corresponding path program 1 times [2024-11-12 00:55:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:04,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316236124] [2024-11-12 00:55:04,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:04,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:06,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:06,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316236124] [2024-11-12 00:55:06,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316236124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:06,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401585796] [2024-11-12 00:55:06,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:06,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:55:06,033 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) [2024-11-12 00:55:06,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 00:55:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:06,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 164 conjuncts are in the unsatisfiable core [2024-11-12 00:55:06,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:55:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-12 00:55:14,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 00:55:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:24,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401585796] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:24,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-12 00:55:24,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [8, 39] total 71 [2024-11-12 00:55:24,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147172074] [2024-11-12 00:55:24,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:24,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-12 00:55:24,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:24,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-12 00:55:24,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=3935, Unknown=0, NotChecked=0, Total=4970 [2024-11-12 00:55:24,945 INFO L87 Difference]: Start difference. First operand 1648 states and 2442 transitions. Second operand has 28 states, 28 states have (on average 12.75) internal successors, (357), 28 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:29,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:29,708 INFO L93 Difference]: Finished difference Result 5085 states and 7568 transitions. [2024-11-12 00:55:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-12 00:55:29,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.75) internal successors, (357), 28 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2024-11-12 00:55:29,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:29,724 INFO L225 Difference]: With dead ends: 5085 [2024-11-12 00:55:29,724 INFO L226 Difference]: Without dead ends: 3622 [2024-11-12 00:55:29,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1701, Invalid=6131, Unknown=0, NotChecked=0, Total=7832 [2024-11-12 00:55:29,730 INFO L435 NwaCegarLoop]: 1044 mSDtfsCounter, 11145 mSDsluCounter, 21559 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11145 SdHoareTripleChecker+Valid, 22603 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:29,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11145 Valid, 22603 Invalid, 3945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3915 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-12 00:55:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-11-12 00:55:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3043. [2024-11-12 00:55:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 1.4871794871794872) internal successors, (4524), 3042 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4524 transitions. [2024-11-12 00:55:29,798 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4524 transitions. Word has length 357 [2024-11-12 00:55:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:29,799 INFO L471 AbstractCegarLoop]: Abstraction has 3043 states and 4524 transitions. [2024-11-12 00:55:29,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.75) internal successors, (357), 28 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4524 transitions. [2024-11-12 00:55:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-12 00:55:29,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:29,806 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:29,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 00:55:30,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:30,007 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:30,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:30,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1537579904, now seen corresponding path program 1 times [2024-11-12 00:55:30,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:30,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799913707] [2024-11-12 00:55:30,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:30,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:31,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799913707] [2024-11-12 00:55:31,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799913707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899573505] [2024-11-12 00:55:31,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:31,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:31,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:55:31,647 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) [2024-11-12 00:55:31,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 00:55:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:32,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 00:55:32,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:55:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:32,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 00:55:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:33,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899573505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 00:55:33,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 00:55:33,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-12 00:55:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690565644] [2024-11-12 00:55:33,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 00:55:33,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 00:55:33,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 00:55:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:33,552 INFO L87 Difference]: Start difference. First operand 3043 states and 4524 transitions. Second operand has 14 states, 14 states have (on average 32.57142857142857) internal successors, (456), 14 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:33,951 INFO L93 Difference]: Finished difference Result 8680 states and 12932 transitions. [2024-11-12 00:55:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:55:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 32.57142857142857) internal successors, (456), 14 states have internal predecessors, (456), 0 states have call successors, (0), 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 358 [2024-11-12 00:55:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:33,963 INFO L225 Difference]: With dead ends: 8680 [2024-11-12 00:55:33,964 INFO L226 Difference]: Without dead ends: 3117 [2024-11-12 00:55:33,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 709 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-12 00:55:33,974 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 792 mSDsluCounter, 11247 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 12321 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:33,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 12321 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:55:33,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2024-11-12 00:55:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3107. [2024-11-12 00:55:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.48486799742434) internal successors, (4612), 3106 states have internal predecessors, (4612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4612 transitions. [2024-11-12 00:55:34,023 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4612 transitions. Word has length 358 [2024-11-12 00:55:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:34,024 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4612 transitions. [2024-11-12 00:55:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 32.57142857142857) internal successors, (456), 14 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4612 transitions. [2024-11-12 00:55:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-12 00:55:34,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:34,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:34,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 00:55:34,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:34,230 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:34,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1267825548, now seen corresponding path program 1 times [2024-11-12 00:55:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653231104] [2024-11-12 00:55:34,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:34,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:36,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:36,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653231104] [2024-11-12 00:55:36,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653231104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:36,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:36,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 00:55:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020527651] [2024-11-12 00:55:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:36,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 00:55:36,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:36,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 00:55:36,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:55:36,618 INFO L87 Difference]: Start difference. First operand 3107 states and 4612 transitions. Second operand has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 9 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:36,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:36,751 INFO L93 Difference]: Finished difference Result 6468 states and 9617 transitions. [2024-11-12 00:55:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:55:36,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 9 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-12 00:55:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:36,759 INFO L225 Difference]: With dead ends: 6468 [2024-11-12 00:55:36,760 INFO L226 Difference]: Without dead ends: 3655 [2024-11-12 00:55:36,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:55:36,765 INFO L435 NwaCegarLoop]: 948 mSDtfsCounter, 106 mSDsluCounter, 5746 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:36,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6694 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2024-11-12 00:55:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3463. [2024-11-12 00:55:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3462 states have (on average 1.483535528596187) internal successors, (5136), 3462 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5136 transitions. [2024-11-12 00:55:36,814 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5136 transitions. Word has length 359 [2024-11-12 00:55:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:36,814 INFO L471 AbstractCegarLoop]: Abstraction has 3463 states and 5136 transitions. [2024-11-12 00:55:36,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 9 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5136 transitions. [2024-11-12 00:55:36,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-12 00:55:36,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:36,819 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:36,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 00:55:36,820 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:36,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1366518244, now seen corresponding path program 1 times [2024-11-12 00:55:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944490630] [2024-11-12 00:55:36,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:36,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat