./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardness-nfm22/hardness_operatoramount_amount500_file-22.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2f8cfcbb935c56cacc0dcdd0cb17c9fa32a1e539a6b0588fb3d51d3444efdea --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:01:59,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:01:59,572 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:01:59,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:01:59,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:01:59,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:01:59,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:01:59,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:01:59,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:01:59,617 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:01:59,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:01:59,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:01:59,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:01:59,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:01:59,618 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:01:59,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:01:59,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:01:59,619 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:01:59,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:01:59,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:01:59,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:01:59,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:01:59,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:01:59,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:01:59,622 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:01:59,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:01:59,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:01:59,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:01:59,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:01:59,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:01:59,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:01:59,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:01:59,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:01:59,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:01:59,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:01:59,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:01:59,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:01:59,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:01:59,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:01:59,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:01:59,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:01:59,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:01:59,628 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f8cfcbb935c56cacc0dcdd0cb17c9fa32a1e539a6b0588fb3d51d3444efdea [2024-11-19 00:01:59,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:01:59,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:01:59,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:01:59,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:01:59,964 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:01:59,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-22.i [2024-11-19 00:02:01,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:02:01,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:02:01,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-22.i [2024-11-19 00:02:01,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216e42641/67b05c24b43d43a193894180937f9c8b/FLAG8ac3fc6fb [2024-11-19 00:02:01,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216e42641/67b05c24b43d43a193894180937f9c8b [2024-11-19 00:02:01,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:02:01,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:02:01,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:02:01,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:02:01,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:02:01,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:02:01" (1/1) ... [2024-11-19 00:02:01,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fd16fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:01, skipping insertion in model container [2024-11-19 00:02:01,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:02:01" (1/1) ... [2024-11-19 00:02:01,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:02:02,113 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/hardness-nfm22/hardness_operatoramount_amount500_file-22.i[916,929] [2024-11-19 00:02:02,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:02:02,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:02:02,397 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/hardness-nfm22/hardness_operatoramount_amount500_file-22.i[916,929] [2024-11-19 00:02:02,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:02:02,575 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:02:02,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02 WrapperNode [2024-11-19 00:02:02,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:02:02,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:02:02,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:02:02,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:02:02,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,708 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 719 [2024-11-19 00:02:02,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:02:02,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:02:02,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:02:02,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:02:02,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,851 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]. [2024-11-19 00:02:02,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:02:02,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:02:02,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:02:02,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:02:02,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (1/1) ... [2024-11-19 00:02:02,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:02:02,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:02:02,987 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) [2024-11-19 00:02:02,994 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 [2024-11-19 00:02:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:02:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:02:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:02:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:02:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:02:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:02:03,335 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:02:03,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:02:04,835 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-19 00:02:04,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:02:04,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:02:04,866 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:02:04,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:02:04 BoogieIcfgContainer [2024-11-19 00:02:04,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:02:04,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:02:04,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:02:04,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:02:04,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:02:01" (1/3) ... [2024-11-19 00:02:04,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2241b2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:02:04, skipping insertion in model container [2024-11-19 00:02:04,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:02:02" (2/3) ... [2024-11-19 00:02:04,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2241b2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:02:04, skipping insertion in model container [2024-11-19 00:02:04,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:02:04" (3/3) ... [2024-11-19 00:02:04,877 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-22.i [2024-11-19 00:02:04,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:02:04,894 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:02:04,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:02:04,990 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;@5fc61134, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:02:04,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:02:04,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 285 states, 228 states have (on average 1.5570175438596492) internal successors, (355), 229 states have internal predecessors, (355), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:02:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-19 00:02:05,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:05,028 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:05,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:05,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1383442847, now seen corresponding path program 1 times [2024-11-19 00:02:05,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:05,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605598155] [2024-11-19 00:02:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:05,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:05,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-19 00:02:05,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:05,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605598155] [2024-11-19 00:02:05,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605598155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:02:05,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635903087] [2024-11-19 00:02:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:05,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:02:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:02:05,784 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) [2024-11-19 00:02:05,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:02:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:06,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:02:06,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:02:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2024-11-19 00:02:06,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:02:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635903087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:06,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:02:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:02:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427816276] [2024-11-19 00:02:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:06,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:02:06,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:06,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:02:06,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:02:06,255 INFO L87 Difference]: Start difference. First operand has 285 states, 228 states have (on average 1.5570175438596492) internal successors, (355), 229 states have internal predecessors, (355), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-19 00:02:06,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:06,310 INFO L93 Difference]: Finished difference Result 563 states and 974 transitions. [2024-11-19 00:02:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:02:06,313 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) Word has length 401 [2024-11-19 00:02:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:06,323 INFO L225 Difference]: With dead ends: 563 [2024-11-19 00:02:06,323 INFO L226 Difference]: Without dead ends: 281 [2024-11-19 00:02:06,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:02:06,332 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:06,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:02:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-19 00:02:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-19 00:02:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 225 states have (on average 1.5466666666666666) internal successors, (348), 225 states have internal predecessors, (348), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 00:02:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 456 transitions. [2024-11-19 00:02:06,412 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 456 transitions. Word has length 401 [2024-11-19 00:02:06,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:06,413 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 456 transitions. [2024-11-19 00:02:06,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-19 00:02:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 456 transitions. [2024-11-19 00:02:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-19 00:02:06,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:06,424 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:06,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:02:06,628 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,SelfDestructingSolverStorable0 [2024-11-19 00:02:06,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:06,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1877743763, now seen corresponding path program 1 times [2024-11-19 00:02:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:06,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311775542] [2024-11-19 00:02:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:07,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:07,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311775542] [2024-11-19 00:02:07,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311775542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:02:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939605735] [2024-11-19 00:02:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:07,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:02:07,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:07,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:02:07,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:02:07,134 INFO L87 Difference]: Start difference. First operand 281 states and 456 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:07,265 INFO L93 Difference]: Finished difference Result 771 states and 1253 transitions. [2024-11-19 00:02:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:02:07,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 401 [2024-11-19 00:02:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:07,275 INFO L225 Difference]: With dead ends: 771 [2024-11-19 00:02:07,276 INFO L226 Difference]: Without dead ends: 493 [2024-11-19 00:02:07,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:02:07,280 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 330 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:07,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 885 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:02:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-19 00:02:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 490. [2024-11-19 00:02:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 413 states have (on average 1.5641646489104115) internal successors, (646), 414 states have internal predecessors, (646), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-19 00:02:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 794 transitions. [2024-11-19 00:02:07,344 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 794 transitions. Word has length 401 [2024-11-19 00:02:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:07,347 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 794 transitions. [2024-11-19 00:02:07,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 794 transitions. [2024-11-19 00:02:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-19 00:02:07,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:07,353 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:07,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:02:07,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:07,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -542570473, now seen corresponding path program 1 times [2024-11-19 00:02:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:07,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332258330] [2024-11-19 00:02:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:07,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:07,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332258330] [2024-11-19 00:02:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332258330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:07,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:07,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:02:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643698747] [2024-11-19 00:02:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:07,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:02:07,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:02:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:02:07,828 INFO L87 Difference]: Start difference. First operand 490 states and 794 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:07,952 INFO L93 Difference]: Finished difference Result 1384 states and 2245 transitions. [2024-11-19 00:02:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:02:07,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 401 [2024-11-19 00:02:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:07,968 INFO L225 Difference]: With dead ends: 1384 [2024-11-19 00:02:07,969 INFO L226 Difference]: Without dead ends: 897 [2024-11-19 00:02:07,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:02:07,973 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 341 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:07,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1108 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:02:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-19 00:02:08,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 894. [2024-11-19 00:02:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 760 states have (on average 1.5657894736842106) internal successors, (1190), 763 states have internal predecessors, (1190), 129 states have call successors, (129), 4 states have call predecessors, (129), 4 states have return successors, (129), 126 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-19 00:02:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1448 transitions. [2024-11-19 00:02:08,047 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1448 transitions. Word has length 401 [2024-11-19 00:02:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:08,049 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1448 transitions. [2024-11-19 00:02:08,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1448 transitions. [2024-11-19 00:02:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-19 00:02:08,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:08,054 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:08,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:02:08,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:08,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1469246377, now seen corresponding path program 1 times [2024-11-19 00:02:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:08,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931881744] [2024-11-19 00:02:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:08,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:08,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931881744] [2024-11-19 00:02:08,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931881744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:08,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:08,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:02:08,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696370860] [2024-11-19 00:02:08,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:08,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:02:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:02:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:08,775 INFO L87 Difference]: Start difference. First operand 894 states and 1448 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:09,150 INFO L93 Difference]: Finished difference Result 2986 states and 4813 transitions. [2024-11-19 00:02:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:02:09,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 401 [2024-11-19 00:02:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:09,166 INFO L225 Difference]: With dead ends: 2986 [2024-11-19 00:02:09,166 INFO L226 Difference]: Without dead ends: 2095 [2024-11-19 00:02:09,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:02:09,172 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 618 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:09,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1896 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:09,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2024-11-19 00:02:09,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1783. [2024-11-19 00:02:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1516 states have (on average 1.5646437994722955) internal successors, (2372), 1522 states have internal predecessors, (2372), 258 states have call successors, (258), 8 states have call predecessors, (258), 8 states have return successors, (258), 252 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-19 00:02:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2888 transitions. [2024-11-19 00:02:09,318 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2888 transitions. Word has length 401 [2024-11-19 00:02:09,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:09,319 INFO L471 AbstractCegarLoop]: Abstraction has 1783 states and 2888 transitions. [2024-11-19 00:02:09,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2888 transitions. [2024-11-19 00:02:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-19 00:02:09,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:09,324 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:09,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:02:09,325 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash 453981657, now seen corresponding path program 1 times [2024-11-19 00:02:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230243097] [2024-11-19 00:02:09,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:09,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:09,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230243097] [2024-11-19 00:02:09,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230243097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:09,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:09,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:02:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357233192] [2024-11-19 00:02:09,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:09,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:02:09,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:09,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:02:09,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:02:09,908 INFO L87 Difference]: Start difference. First operand 1783 states and 2888 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:10,279 INFO L93 Difference]: Finished difference Result 4639 states and 7491 transitions. [2024-11-19 00:02:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:02:10,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 401 [2024-11-19 00:02:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:10,296 INFO L225 Difference]: With dead ends: 4639 [2024-11-19 00:02:10,296 INFO L226 Difference]: Without dead ends: 2859 [2024-11-19 00:02:10,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:10,303 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 553 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:10,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1328 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-11-19 00:02:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2449. [2024-11-19 00:02:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2125 states have (on average 1.5905882352941176) internal successors, (3380), 2131 states have internal predecessors, (3380), 312 states have call successors, (312), 11 states have call predecessors, (312), 11 states have return successors, (312), 306 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-19 00:02:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 4004 transitions. [2024-11-19 00:02:10,441 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 4004 transitions. Word has length 401 [2024-11-19 00:02:10,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:10,442 INFO L471 AbstractCegarLoop]: Abstraction has 2449 states and 4004 transitions. [2024-11-19 00:02:10,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 4004 transitions. [2024-11-19 00:02:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-19 00:02:10,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:10,447 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:10,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:02:10,448 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:10,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:10,449 INFO L85 PathProgramCache]: Analyzing trace with hash -660577991, now seen corresponding path program 1 times [2024-11-19 00:02:10,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:10,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815058529] [2024-11-19 00:02:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:11,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:11,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815058529] [2024-11-19 00:02:11,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815058529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:11,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:11,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:02:11,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583161261] [2024-11-19 00:02:11,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:11,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:02:11,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:11,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:02:11,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:02:11,149 INFO L87 Difference]: Start difference. First operand 2449 states and 4004 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:11,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:11,613 INFO L93 Difference]: Finished difference Result 5199 states and 8438 transitions. [2024-11-19 00:02:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:02:11,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 403 [2024-11-19 00:02:11,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:11,630 INFO L225 Difference]: With dead ends: 5199 [2024-11-19 00:02:11,630 INFO L226 Difference]: Without dead ends: 2860 [2024-11-19 00:02:11,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:02:11,640 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 559 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:11,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 2101 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2024-11-19 00:02:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 2450. [2024-11-19 00:02:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2126 states have (on average 1.590310442144873) internal successors, (3381), 2132 states have internal predecessors, (3381), 312 states have call successors, (312), 11 states have call predecessors, (312), 11 states have return successors, (312), 306 states have call predecessors, (312), 312 states have call successors, (312) [2024-11-19 00:02:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 4005 transitions. [2024-11-19 00:02:11,775 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 4005 transitions. Word has length 403 [2024-11-19 00:02:11,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:11,776 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 4005 transitions. [2024-11-19 00:02:11,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 4005 transitions. [2024-11-19 00:02:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-19 00:02:11,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:11,782 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:11,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:02:11,783 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:11,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:11,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1693807291, now seen corresponding path program 1 times [2024-11-19 00:02:11,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:11,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990923939] [2024-11-19 00:02:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:12,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:12,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990923939] [2024-11-19 00:02:12,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990923939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:12,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:12,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:02:12,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283715925] [2024-11-19 00:02:12,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:12,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:02:12,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:12,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:02:12,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:02:12,424 INFO L87 Difference]: Start difference. First operand 2450 states and 4005 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:12,912 INFO L93 Difference]: Finished difference Result 8448 states and 13848 transitions. [2024-11-19 00:02:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:02:12,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 403 [2024-11-19 00:02:12,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:12,944 INFO L225 Difference]: With dead ends: 8448 [2024-11-19 00:02:12,944 INFO L226 Difference]: Without dead ends: 6108 [2024-11-19 00:02:12,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:12,955 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 648 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:12,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1606 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:12,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2024-11-19 00:02:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 5704. [2024-11-19 00:02:13,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5114 states have (on average 1.6149784904184592) internal successors, (8259), 5126 states have internal predecessors, (8259), 570 states have call successors, (570), 19 states have call predecessors, (570), 19 states have return successors, (570), 558 states have call predecessors, (570), 570 states have call successors, (570) [2024-11-19 00:02:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 9399 transitions. [2024-11-19 00:02:13,263 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 9399 transitions. Word has length 403 [2024-11-19 00:02:13,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:13,264 INFO L471 AbstractCegarLoop]: Abstraction has 5704 states and 9399 transitions. [2024-11-19 00:02:13,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 9399 transitions. [2024-11-19 00:02:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:13,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:13,273 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:13,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:02:13,273 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:13,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:13,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1288310623, now seen corresponding path program 1 times [2024-11-19 00:02:13,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:13,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602963728] [2024-11-19 00:02:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:13,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:13,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:13,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602963728] [2024-11-19 00:02:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602963728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:13,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:13,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:02:13,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303503167] [2024-11-19 00:02:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:13,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:02:13,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:02:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:02:13,887 INFO L87 Difference]: Start difference. First operand 5704 states and 9399 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:14,455 INFO L93 Difference]: Finished difference Result 7902 states and 12877 transitions. [2024-11-19 00:02:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:02:14,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 405 [2024-11-19 00:02:14,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:14,485 INFO L225 Difference]: With dead ends: 7902 [2024-11-19 00:02:14,486 INFO L226 Difference]: Without dead ends: 5555 [2024-11-19 00:02:14,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:02:14,496 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 544 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:14,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2106 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:02:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2024-11-19 00:02:14,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5145. [2024-11-19 00:02:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 4555 states have (on average 1.6035126234906696) internal successors, (7304), 4567 states have internal predecessors, (7304), 570 states have call successors, (570), 19 states have call predecessors, (570), 19 states have return successors, (570), 558 states have call predecessors, (570), 570 states have call successors, (570) [2024-11-19 00:02:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 8444 transitions. [2024-11-19 00:02:14,811 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 8444 transitions. Word has length 405 [2024-11-19 00:02:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:14,812 INFO L471 AbstractCegarLoop]: Abstraction has 5145 states and 8444 transitions. [2024-11-19 00:02:14,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 8444 transitions. [2024-11-19 00:02:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:14,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:14,823 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:14,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:02:14,824 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:14,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1259810333, now seen corresponding path program 1 times [2024-11-19 00:02:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:14,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514285949] [2024-11-19 00:02:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:14,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:16,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:16,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514285949] [2024-11-19 00:02:16,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514285949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:16,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:02:16,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579425958] [2024-11-19 00:02:16,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:16,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:02:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:02:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:02:16,034 INFO L87 Difference]: Start difference. First operand 5145 states and 8444 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:16,560 INFO L93 Difference]: Finished difference Result 14939 states and 24554 transitions. [2024-11-19 00:02:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:02:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 405 [2024-11-19 00:02:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:16,607 INFO L225 Difference]: With dead ends: 14939 [2024-11-19 00:02:16,608 INFO L226 Difference]: Without dead ends: 10079 [2024-11-19 00:02:16,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:16,627 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 317 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:16,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1226 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:16,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2024-11-19 00:02:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 10077. [2024-11-19 00:02:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 8955 states have (on average 1.6035734226689) internal successors, (14360), 8979 states have internal predecessors, (14360), 1086 states have call successors, (1086), 35 states have call predecessors, (1086), 35 states have return successors, (1086), 1062 states have call predecessors, (1086), 1086 states have call successors, (1086) [2024-11-19 00:02:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 16532 transitions. [2024-11-19 00:02:17,124 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 16532 transitions. Word has length 405 [2024-11-19 00:02:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:17,125 INFO L471 AbstractCegarLoop]: Abstraction has 10077 states and 16532 transitions. [2024-11-19 00:02:17,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 16532 transitions. [2024-11-19 00:02:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:17,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:17,132 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:17,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:02:17,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:17,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash -768775777, now seen corresponding path program 1 times [2024-11-19 00:02:17,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:17,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408869841] [2024-11-19 00:02:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:17,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:18,263 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:18,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:18,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408869841] [2024-11-19 00:02:18,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408869841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:18,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:18,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:02:18,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650825275] [2024-11-19 00:02:18,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:18,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:02:18,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:18,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:02:18,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:02:18,267 INFO L87 Difference]: Start difference. First operand 10077 states and 16532 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:18,891 INFO L93 Difference]: Finished difference Result 20073 states and 32824 transitions. [2024-11-19 00:02:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:02:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 405 [2024-11-19 00:02:18,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:18,934 INFO L225 Difference]: With dead ends: 20073 [2024-11-19 00:02:18,935 INFO L226 Difference]: Without dead ends: 10663 [2024-11-19 00:02:18,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:18,961 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 366 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:18,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1271 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:02:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2024-11-19 00:02:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 10077. [2024-11-19 00:02:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 8955 states have (on average 1.6033500837520938) internal successors, (14358), 8979 states have internal predecessors, (14358), 1086 states have call successors, (1086), 35 states have call predecessors, (1086), 35 states have return successors, (1086), 1062 states have call predecessors, (1086), 1086 states have call successors, (1086) [2024-11-19 00:02:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 16530 transitions. [2024-11-19 00:02:19,460 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 16530 transitions. Word has length 405 [2024-11-19 00:02:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:19,461 INFO L471 AbstractCegarLoop]: Abstraction has 10077 states and 16530 transitions. [2024-11-19 00:02:19,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 16530 transitions. [2024-11-19 00:02:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:19,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:19,467 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:19,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:02:19,468 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:19,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash -566951843, now seen corresponding path program 1 times [2024-11-19 00:02:19,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:19,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342447587] [2024-11-19 00:02:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:19,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:20,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:20,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342447587] [2024-11-19 00:02:20,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342447587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:20,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:20,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:02:20,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285231408] [2024-11-19 00:02:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:20,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:02:20,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:20,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:02:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:02:20,807 INFO L87 Difference]: Start difference. First operand 10077 states and 16530 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:23,870 INFO L93 Difference]: Finished difference Result 44043 states and 71624 transitions. [2024-11-19 00:02:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:02:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 405 [2024-11-19 00:02:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:23,992 INFO L225 Difference]: With dead ends: 44043 [2024-11-19 00:02:23,992 INFO L226 Difference]: Without dead ends: 34609 [2024-11-19 00:02:24,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:02:24,027 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 3518 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:24,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 3011 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 00:02:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34609 states. [2024-11-19 00:02:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34609 to 34467. [2024-11-19 00:02:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34467 states, 30504 states have (on average 1.5752032520325203) internal successors, (48050), 30584 states have internal predecessors, (48050), 3798 states have call successors, (3798), 164 states have call predecessors, (3798), 164 states have return successors, (3798), 3718 states have call predecessors, (3798), 3798 states have call successors, (3798) [2024-11-19 00:02:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34467 states to 34467 states and 55646 transitions. [2024-11-19 00:02:26,036 INFO L78 Accepts]: Start accepts. Automaton has 34467 states and 55646 transitions. Word has length 405 [2024-11-19 00:02:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:26,038 INFO L471 AbstractCegarLoop]: Abstraction has 34467 states and 55646 transitions. [2024-11-19 00:02:26,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 34467 states and 55646 transitions. [2024-11-19 00:02:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:26,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:26,051 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:26,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:02:26,051 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:26,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1001436763, now seen corresponding path program 1 times [2024-11-19 00:02:26,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:26,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590372107] [2024-11-19 00:02:26,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:26,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:28,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:28,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590372107] [2024-11-19 00:02:28,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590372107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:28,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:28,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:02:28,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133059424] [2024-11-19 00:02:28,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:28,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:02:28,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:28,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:02:28,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:02:28,152 INFO L87 Difference]: Start difference. First operand 34467 states and 55646 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:32,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:32,617 INFO L93 Difference]: Finished difference Result 165069 states and 265300 transitions. [2024-11-19 00:02:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:02:32,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 405 [2024-11-19 00:02:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:33,058 INFO L225 Difference]: With dead ends: 165069 [2024-11-19 00:02:33,058 INFO L226 Difference]: Without dead ends: 131375 [2024-11-19 00:02:33,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:02:33,169 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 1409 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:33,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 2320 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:02:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131375 states. [2024-11-19 00:02:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131375 to 87099. [2024-11-19 00:02:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87099 states, 81679 states have (on average 1.602700816611369) internal successors, (130907), 81871 states have internal predecessors, (130907), 5142 states have call successors, (5142), 277 states have call predecessors, (5142), 277 states have return successors, (5142), 4950 states have call predecessors, (5142), 5142 states have call successors, (5142) [2024-11-19 00:02:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87099 states to 87099 states and 141191 transitions. [2024-11-19 00:02:37,872 INFO L78 Accepts]: Start accepts. Automaton has 87099 states and 141191 transitions. Word has length 405 [2024-11-19 00:02:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:37,873 INFO L471 AbstractCegarLoop]: Abstraction has 87099 states and 141191 transitions. [2024-11-19 00:02:37,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 87099 states and 141191 transitions. [2024-11-19 00:02:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 00:02:37,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:37,906 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:37,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:02:37,906 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:37,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash -223233197, now seen corresponding path program 1 times [2024-11-19 00:02:37,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:37,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970022923] [2024-11-19 00:02:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:37,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 60 proven. 99 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-19 00:02:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970022923] [2024-11-19 00:02:40,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970022923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:02:40,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016838250] [2024-11-19 00:02:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:40,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:02:40,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:02:40,554 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) [2024-11-19 00:02:40,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:02:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:40,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:02:40,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:02:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 563 proven. 6 refuted. 0 times theorem prover too weak. 5155 trivial. 0 not checked. [2024-11-19 00:02:41,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:02:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 153 proven. 6 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-19 00:02:41,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016838250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:02:41,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:02:41,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-19 00:02:41,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519776068] [2024-11-19 00:02:41,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:02:41,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:02:41,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:41,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:02:41,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:02:41,535 INFO L87 Difference]: Start difference. First operand 87099 states and 141191 transitions. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-19 00:02:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:42,883 INFO L93 Difference]: Finished difference Result 100029 states and 162458 transitions. [2024-11-19 00:02:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:02:42,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 405 [2024-11-19 00:02:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:42,957 INFO L225 Difference]: With dead ends: 100029 [2024-11-19 00:02:42,957 INFO L226 Difference]: Without dead ends: 13535 [2024-11-19 00:02:43,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 807 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:02:43,214 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1193 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:43,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1135 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:02:43,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2024-11-19 00:02:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 13395. [2024-11-19 00:02:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 12373 states have (on average 1.5918532288046554) internal successors, (19696), 12397 states have internal predecessors, (19696), 958 states have call successors, (958), 63 states have call predecessors, (958), 63 states have return successors, (958), 934 states have call predecessors, (958), 958 states have call successors, (958) [2024-11-19 00:02:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 21612 transitions. [2024-11-19 00:02:43,917 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 21612 transitions. Word has length 405 [2024-11-19 00:02:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:43,918 INFO L471 AbstractCegarLoop]: Abstraction has 13395 states and 21612 transitions. [2024-11-19 00:02:43,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-19 00:02:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 21612 transitions. [2024-11-19 00:02:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-19 00:02:43,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:43,929 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:43,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:02:44,130 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 [2024-11-19 00:02:44,131 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:44,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1882861681, now seen corresponding path program 1 times [2024-11-19 00:02:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:44,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031972671] [2024-11-19 00:02:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 72 proven. 87 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-19 00:02:47,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:47,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031972671] [2024-11-19 00:02:47,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031972671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:02:47,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006411956] [2024-11-19 00:02:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:47,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:02:47,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:02:47,569 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) [2024-11-19 00:02:47,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:02:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:47,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:02:47,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:02:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 2643 proven. 54 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2024-11-19 00:02:48,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:02:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 105 proven. 54 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2024-11-19 00:02:48,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006411956] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:02:48,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:02:48,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-19 00:02:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365739787] [2024-11-19 00:02:48,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:02:48,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:02:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:48,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:02:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:02:48,633 INFO L87 Difference]: Start difference. First operand 13395 states and 21612 transitions. Second operand has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2024-11-19 00:02:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:49,493 INFO L93 Difference]: Finished difference Result 20637 states and 33114 transitions. [2024-11-19 00:02:49,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:02:49,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) Word has length 406 [2024-11-19 00:02:49,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:49,524 INFO L225 Difference]: With dead ends: 20637 [2024-11-19 00:02:49,525 INFO L226 Difference]: Without dead ends: 7467 [2024-11-19 00:02:49,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 809 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:02:49,543 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 1145 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:49,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 967 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:02:49,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7467 states. [2024-11-19 00:02:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7467 to 5595. [2024-11-19 00:02:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 4947 states have (on average 1.5366889023650698) internal successors, (7602), 4955 states have internal predecessors, (7602), 582 states have call successors, (582), 65 states have call predecessors, (582), 65 states have return successors, (582), 574 states have call predecessors, (582), 582 states have call successors, (582) [2024-11-19 00:02:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 8766 transitions. [2024-11-19 00:02:49,833 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 8766 transitions. Word has length 406 [2024-11-19 00:02:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:49,834 INFO L471 AbstractCegarLoop]: Abstraction has 5595 states and 8766 transitions. [2024-11-19 00:02:49,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.625) internal successors, (229), 8 states have internal predecessors, (229), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2024-11-19 00:02:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 8766 transitions. [2024-11-19 00:02:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-19 00:02:49,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:49,838 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:49,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 00:02:50,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:02:50,043 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:50,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -345538054, now seen corresponding path program 1 times [2024-11-19 00:02:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309087870] [2024-11-19 00:02:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:50,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:51,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309087870] [2024-11-19 00:02:51,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309087870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:51,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:51,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:02:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33703230] [2024-11-19 00:02:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:51,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:02:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:02:51,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:51,054 INFO L87 Difference]: Start difference. First operand 5595 states and 8766 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:51,471 INFO L93 Difference]: Finished difference Result 9295 states and 14590 transitions. [2024-11-19 00:02:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:02:51,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 408 [2024-11-19 00:02:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:51,508 INFO L225 Difference]: With dead ends: 9295 [2024-11-19 00:02:51,508 INFO L226 Difference]: Without dead ends: 3245 [2024-11-19 00:02:51,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:02:51,519 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 671 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:51,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1146 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:02:51,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2024-11-19 00:02:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 2915. [2024-11-19 00:02:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2555 states have (on average 1.5185909980430528) internal successors, (3880), 2559 states have internal predecessors, (3880), 318 states have call successors, (318), 41 states have call predecessors, (318), 41 states have return successors, (318), 314 states have call predecessors, (318), 318 states have call successors, (318) [2024-11-19 00:02:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4516 transitions. [2024-11-19 00:02:51,678 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4516 transitions. Word has length 408 [2024-11-19 00:02:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:51,679 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4516 transitions. [2024-11-19 00:02:51,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4516 transitions. [2024-11-19 00:02:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-19 00:02:51,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:51,682 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:51,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:02:51,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:51,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:51,683 INFO L85 PathProgramCache]: Analyzing trace with hash 449514554, now seen corresponding path program 1 times [2024-11-19 00:02:51,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:51,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964073402] [2024-11-19 00:02:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:51,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-19 00:02:52,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:52,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964073402] [2024-11-19 00:02:52,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964073402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:52,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:02:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480400216] [2024-11-19 00:02:52,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:52,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:02:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:52,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:02:52,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:02:52,824 INFO L87 Difference]: Start difference. First operand 2915 states and 4516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:53,647 INFO L93 Difference]: Finished difference Result 7608 states and 11731 transitions. [2024-11-19 00:02:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:02:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 408 [2024-11-19 00:02:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:53,672 INFO L225 Difference]: With dead ends: 7608 [2024-11-19 00:02:53,672 INFO L226 Difference]: Without dead ends: 5030 [2024-11-19 00:02:53,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:02:53,680 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 1436 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:53,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1999 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:02:53,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2024-11-19 00:02:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 4108. [2024-11-19 00:02:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 3668 states have (on average 1.5286259541984732) internal successors, (5607), 3676 states have internal predecessors, (5607), 390 states have call successors, (390), 49 states have call predecessors, (390), 49 states have return successors, (390), 382 states have call predecessors, (390), 390 states have call successors, (390) [2024-11-19 00:02:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 6387 transitions. [2024-11-19 00:02:53,944 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 6387 transitions. Word has length 408 [2024-11-19 00:02:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:53,945 INFO L471 AbstractCegarLoop]: Abstraction has 4108 states and 6387 transitions. [2024-11-19 00:02:53,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2024-11-19 00:02:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 6387 transitions. [2024-11-19 00:02:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-19 00:02:53,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:53,949 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:53,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:02:53,949 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:53,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1987854584, now seen corresponding path program 1 times [2024-11-19 00:02:53,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:53,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700906931] [2024-11-19 00:02:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:53,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 138 proven. 174 refuted. 0 times theorem prover too weak. 5412 trivial. 0 not checked. [2024-11-19 00:02:56,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700906931] [2024-11-19 00:02:56,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700906931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:02:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649600874] [2024-11-19 00:02:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:56,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:02:56,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:02:56,364 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) [2024-11-19 00:02:56,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:02:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:56,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-19 00:02:56,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:02:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 2412 proven. 144 refuted. 0 times theorem prover too weak. 3168 trivial. 0 not checked. [2024-11-19 00:02:58,580 INFO L311 TraceCheckSpWp]: Computing backward predicates...