./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_fillercode_fillercodestructure_filler-ps-ci_file-59.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 55ef89218ca5703ca4bd9b4f4c9cb048907ae080294c44af1e1fe0026c4ad918 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 06:01:33,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 06:01:33,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 06:01:33,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 06:01:33,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 06:01:33,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 06:01:33,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 06:01:33,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 06:01:33,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 06:01:33,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 06:01:33,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 06:01:33,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 06:01:33,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 06:01:33,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 06:01:33,806 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 06:01:33,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 06:01:33,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 06:01:33,810 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 06:01:33,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 06:01:33,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 06:01:33,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 06:01:33,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 06:01:33,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 06:01:33,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 06:01:33,812 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 06:01:33,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 06:01:33,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 06:01:33,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 06:01:33,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 06:01:33,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 06:01:33,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 06:01:33,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 06:01:33,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:01:33,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 06:01:33,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 06:01:33,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 06:01:33,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 06:01:33,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 06:01:33,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 06:01:33,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 06:01:33,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 06:01:33,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 06:01:33,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ef89218ca5703ca4bd9b4f4c9cb048907ae080294c44af1e1fe0026c4ad918 [2024-11-10 06:01:34,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 06:01:34,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 06:01:34,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 06:01:34,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 06:01:34,205 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 06:01:34,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-59.i [2024-11-10 06:01:35,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 06:01:35,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 06:01:35,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-59.i [2024-11-10 06:01:36,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e5094f6/28681a1caaca4b15bb51a04c1b92b00a/FLAG56a8b6b91 [2024-11-10 06:01:36,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12e5094f6/28681a1caaca4b15bb51a04c1b92b00a [2024-11-10 06:01:36,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 06:01:36,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 06:01:36,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 06:01:36,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 06:01:36,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 06:01:36,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9d2e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36, skipping insertion in model container [2024-11-10 06:01:36,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 06:01:36,287 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_fillercode_fillercodestructure_filler-ps-ci_file-59.i[919,932] [2024-11-10 06:01:36,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:01:36,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 06:01:36,441 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_fillercode_fillercodestructure_filler-ps-ci_file-59.i[919,932] [2024-11-10 06:01:36,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:01:36,498 INFO L204 MainTranslator]: Completed translation [2024-11-10 06:01:36,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36 WrapperNode [2024-11-10 06:01:36,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 06:01:36,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 06:01:36,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 06:01:36,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 06:01:36,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,602 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194 [2024-11-10 06:01:36,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 06:01:36,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 06:01:36,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 06:01:36,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 06:01:36,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,692 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]. [2024-11-10 06:01:36,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 06:01:36,736 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 06:01:36,737 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 06:01:36,737 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 06:01:36,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (1/1) ... [2024-11-10 06:01:36,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:01:36,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:01:36,780 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) [2024-11-10 06:01:36,784 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 [2024-11-10 06:01:36,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 06:01:36,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 06:01:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 06:01:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 06:01:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 06:01:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 06:01:36,952 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 06:01:36,954 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 06:01:37,560 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-10 06:01:37,561 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 06:01:37,592 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 06:01:37,592 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 06:01:37,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:01:37 BoogieIcfgContainer [2024-11-10 06:01:37,593 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 06:01:37,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 06:01:37,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 06:01:37,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 06:01:37,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:01:36" (1/3) ... [2024-11-10 06:01:37,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744db855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:01:37, skipping insertion in model container [2024-11-10 06:01:37,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:01:36" (2/3) ... [2024-11-10 06:01:37,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744db855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:01:37, skipping insertion in model container [2024-11-10 06:01:37,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:01:37" (3/3) ... [2024-11-10 06:01:37,601 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-59.i [2024-11-10 06:01:37,617 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 06:01:37,617 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 06:01:37,684 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 06:01:37,693 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;@7a203fcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 06:01:37,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 06:01:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 62 states have (on average 1.5) internal successors, (93), 63 states have internal predecessors, (93), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 06:01:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 06:01:37,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:37,717 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:37,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:37,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash 644265401, now seen corresponding path program 1 times [2024-11-10 06:01:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:37,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908488602] [2024-11-10 06:01:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:37,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:38,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:38,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908488602] [2024-11-10 06:01:38,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908488602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:38,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:38,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 06:01:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128601208] [2024-11-10 06:01:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:38,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 06:01:38,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:38,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 06:01:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:01:38,333 INFO L87 Difference]: Start difference. First operand has 85 states, 62 states have (on average 1.5) internal successors, (93), 63 states have internal predecessors, (93), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 06:01:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:38,374 INFO L93 Difference]: Finished difference Result 159 states and 273 transitions. [2024-11-10 06:01:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 06:01:38,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 139 [2024-11-10 06:01:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:38,389 INFO L225 Difference]: With dead ends: 159 [2024-11-10 06:01:38,390 INFO L226 Difference]: Without dead ends: 77 [2024-11-10 06:01:38,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:01:38,403 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:38,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 06:01:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-10 06:01:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-10 06:01:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 06:01:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 116 transitions. [2024-11-10 06:01:38,454 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 116 transitions. Word has length 139 [2024-11-10 06:01:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:38,455 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 116 transitions. [2024-11-10 06:01:38,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 06:01:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 116 transitions. [2024-11-10 06:01:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 06:01:38,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:38,460 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:38,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 06:01:38,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:38,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:38,462 INFO L85 PathProgramCache]: Analyzing trace with hash 52827453, now seen corresponding path program 1 times [2024-11-10 06:01:38,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:38,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841496513] [2024-11-10 06:01:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:38,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:38,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:38,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841496513] [2024-11-10 06:01:38,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841496513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:38,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:38,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 06:01:38,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039079168] [2024-11-10 06:01:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:38,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 06:01:38,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 06:01:38,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 06:01:38,930 INFO L87 Difference]: Start difference. First operand 77 states and 116 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:38,993 INFO L93 Difference]: Finished difference Result 151 states and 229 transitions. [2024-11-10 06:01:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 06:01:38,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-11-10 06:01:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:38,998 INFO L225 Difference]: With dead ends: 151 [2024-11-10 06:01:38,998 INFO L226 Difference]: Without dead ends: 77 [2024-11-10 06:01:38,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 06:01:39,001 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:39,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 06:01:39,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-10 06:01:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-10 06:01:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 55 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 06:01:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 115 transitions. [2024-11-10 06:01:39,016 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 115 transitions. Word has length 139 [2024-11-10 06:01:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 115 transitions. [2024-11-10 06:01:39,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2024-11-10 06:01:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 06:01:39,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:39,022 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:39,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 06:01:39,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:39,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:39,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1406137150, now seen corresponding path program 1 times [2024-11-10 06:01:39,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:39,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844161958] [2024-11-10 06:01:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:39,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:39,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:39,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844161958] [2024-11-10 06:01:39,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844161958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:39,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:39,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 06:01:39,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3730150] [2024-11-10 06:01:39,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:39,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 06:01:39,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 06:01:39,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 06:01:39,582 INFO L87 Difference]: Start difference. First operand 77 states and 115 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:39,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:39,791 INFO L93 Difference]: Finished difference Result 227 states and 341 transitions. [2024-11-10 06:01:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 06:01:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2024-11-10 06:01:39,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:39,795 INFO L225 Difference]: With dead ends: 227 [2024-11-10 06:01:39,795 INFO L226 Difference]: Without dead ends: 153 [2024-11-10 06:01:39,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:01:39,801 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 98 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:39,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 323 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 06:01:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-10 06:01:39,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 132. [2024-11-10 06:01:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.3258426966292134) internal successors, (118), 89 states have internal predecessors, (118), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-10 06:01:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 198 transitions. [2024-11-10 06:01:39,843 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 198 transitions. Word has length 139 [2024-11-10 06:01:39,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:39,844 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 198 transitions. [2024-11-10 06:01:39,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:39,845 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 198 transitions. [2024-11-10 06:01:39,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-10 06:01:39,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:39,847 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:39,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 06:01:39,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:39,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash 489041766, now seen corresponding path program 1 times [2024-11-10 06:01:39,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:39,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138285416] [2024-11-10 06:01:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:40,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:40,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138285416] [2024-11-10 06:01:40,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138285416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:40,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:40,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 06:01:40,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683552963] [2024-11-10 06:01:40,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:40,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 06:01:40,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 06:01:40,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 06:01:40,396 INFO L87 Difference]: Start difference. First operand 132 states and 198 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:40,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:40,579 INFO L93 Difference]: Finished difference Result 292 states and 436 transitions. [2024-11-10 06:01:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 06:01:40,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2024-11-10 06:01:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:40,585 INFO L225 Difference]: With dead ends: 292 [2024-11-10 06:01:40,585 INFO L226 Difference]: Without dead ends: 218 [2024-11-10 06:01:40,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:01:40,591 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 114 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:40,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 322 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 06:01:40,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-10 06:01:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 203. [2024-11-10 06:01:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 139 states have (on average 1.3381294964028776) internal successors, (186), 139 states have internal predecessors, (186), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-10 06:01:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 306 transitions. [2024-11-10 06:01:40,637 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 306 transitions. Word has length 140 [2024-11-10 06:01:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:40,638 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 306 transitions. [2024-11-10 06:01:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 306 transitions. [2024-11-10 06:01:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 06:01:40,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:40,645 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:40,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 06:01:40,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:40,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2093514719, now seen corresponding path program 1 times [2024-11-10 06:01:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511138848] [2024-11-10 06:01:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:40,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:41,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511138848] [2024-11-10 06:01:41,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511138848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:41,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:41,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 06:01:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307039084] [2024-11-10 06:01:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:41,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 06:01:41,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:41,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 06:01:41,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 06:01:41,304 INFO L87 Difference]: Start difference. First operand 203 states and 306 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:41,600 INFO L93 Difference]: Finished difference Result 425 states and 629 transitions. [2024-11-10 06:01:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 06:01:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-11-10 06:01:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:41,604 INFO L225 Difference]: With dead ends: 425 [2024-11-10 06:01:41,605 INFO L226 Difference]: Without dead ends: 271 [2024-11-10 06:01:41,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-10 06:01:41,606 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 165 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:41,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 413 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 06:01:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-10 06:01:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 212. [2024-11-10 06:01:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 148 states have internal predecessors, (197), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-10 06:01:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 317 transitions. [2024-11-10 06:01:41,643 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 317 transitions. Word has length 141 [2024-11-10 06:01:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 317 transitions. [2024-11-10 06:01:41,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 317 transitions. [2024-11-10 06:01:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 06:01:41,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:41,647 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 06:01:41,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1695893952, now seen corresponding path program 1 times [2024-11-10 06:01:41,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:41,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555150642] [2024-11-10 06:01:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-10 06:01:41,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:41,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555150642] [2024-11-10 06:01:41,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555150642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 06:01:41,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831753290] [2024-11-10 06:01:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:41,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:01:41,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:01:41,983 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) [2024-11-10 06:01:41,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 06:01:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:42,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 06:01:42,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 06:01:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-10 06:01:42,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 06:01:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-10 06:01:42,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831753290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 06:01:42,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 06:01:42,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 10 [2024-11-10 06:01:42,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581845129] [2024-11-10 06:01:42,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 06:01:42,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 06:01:42,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 06:01:42,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 06:01:42,639 INFO L87 Difference]: Start difference. First operand 212 states and 317 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-10 06:01:43,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:43,517 INFO L93 Difference]: Finished difference Result 571 states and 811 transitions. [2024-11-10 06:01:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-10 06:01:43,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 141 [2024-11-10 06:01:43,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:43,523 INFO L225 Difference]: With dead ends: 571 [2024-11-10 06:01:43,525 INFO L226 Difference]: Without dead ends: 417 [2024-11-10 06:01:43,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 316 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=806, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 06:01:43,529 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 366 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:43,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 259 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 06:01:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-10 06:01:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2024-11-10 06:01:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 224 states have (on average 1.2232142857142858) internal successors, (274), 226 states have internal predecessors, (274), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-10 06:01:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 442 transitions. [2024-11-10 06:01:43,581 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 442 transitions. Word has length 141 [2024-11-10 06:01:43,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:43,581 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 442 transitions. [2024-11-10 06:01:43,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-10 06:01:43,582 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 442 transitions. [2024-11-10 06:01:43,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 06:01:43,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:43,584 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:43,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 06:01:43,785 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,SelfDestructingSolverStorable5 [2024-11-10 06:01:43,785 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:43,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1331054331, now seen corresponding path program 1 times [2024-11-10 06:01:43,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:43,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314066397] [2024-11-10 06:01:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:43,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-10 06:01:44,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314066397] [2024-11-10 06:01:44,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314066397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:01:44,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:01:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 06:01:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722649543] [2024-11-10 06:01:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:01:44,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 06:01:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 06:01:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 06:01:44,590 INFO L87 Difference]: Start difference. First operand 323 states and 442 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:45,029 INFO L93 Difference]: Finished difference Result 632 states and 862 transitions. [2024-11-10 06:01:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 06:01:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-10 06:01:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:45,034 INFO L225 Difference]: With dead ends: 632 [2024-11-10 06:01:45,035 INFO L226 Difference]: Without dead ends: 379 [2024-11-10 06:01:45,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-10 06:01:45,036 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 105 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:45,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 390 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 06:01:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-10 06:01:45,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 327. [2024-11-10 06:01:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 228 states have (on average 1.219298245614035) internal successors, (278), 230 states have internal predecessors, (278), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-10 06:01:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 446 transitions. [2024-11-10 06:01:45,084 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 446 transitions. Word has length 144 [2024-11-10 06:01:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:45,084 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 446 transitions. [2024-11-10 06:01:45,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-10 06:01:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 446 transitions. [2024-11-10 06:01:45,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 06:01:45,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:45,086 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:45,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 06:01:45,087 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:45,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1836612956, now seen corresponding path program 1 times [2024-11-10 06:01:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53735404] [2024-11-10 06:01:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:45,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:01:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:01:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:01:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:01:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:01:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:01:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:01:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:01:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 06:01:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 06:01:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 06:01:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 06:01:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 06:01:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 06:01:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 06:01:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:01:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:01:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:01:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:01:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:01:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-10 06:01:45,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:45,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53735404] [2024-11-10 06:01:45,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53735404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 06:01:45,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009663122] [2024-11-10 06:01:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:45,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:01:45,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:01:45,543 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) [2024-11-10 06:01:45,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 06:01:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:45,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 06:01:45,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 06:01:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-10 06:01:46,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 06:01:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-10 06:01:46,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009663122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 06:01:46,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 06:01:46,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2024-11-10 06:01:46,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601163275] [2024-11-10 06:01:46,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 06:01:46,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 06:01:46,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:46,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 06:01:46,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-10 06:01:46,581 INFO L87 Difference]: Start difference. First operand 327 states and 446 transitions. Second operand has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) [2024-11-10 06:01:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:47,380 INFO L93 Difference]: Finished difference Result 680 states and 913 transitions. [2024-11-10 06:01:47,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 06:01:47,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) Word has length 144 [2024-11-10 06:01:47,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:47,387 INFO L225 Difference]: With dead ends: 680 [2024-11-10 06:01:47,387 INFO L226 Difference]: Without dead ends: 423 [2024-11-10 06:01:47,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-11-10 06:01:47,389 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 206 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:47,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 06:01:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-10 06:01:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 397. [2024-11-10 06:01:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 285 states have (on average 1.2140350877192982) internal successors, (346), 290 states have internal predecessors, (346), 93 states have call successors, (93), 18 states have call predecessors, (93), 18 states have return successors, (93), 88 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-10 06:01:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 532 transitions. [2024-11-10 06:01:47,453 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 532 transitions. Word has length 144 [2024-11-10 06:01:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:47,468 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 532 transitions. [2024-11-10 06:01:47,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (60), 3 states have call predecessors, (60), 6 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) [2024-11-10 06:01:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 532 transitions. [2024-11-10 06:01:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 06:01:47,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:47,471 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:47,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 06:01:47,671 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,SelfDestructingSolverStorable7 [2024-11-10 06:01:47,672 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:47,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:47,673 INFO L85 PathProgramCache]: Analyzing trace with hash 700979880, now seen corresponding path program 1 times [2024-11-10 06:01:47,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:47,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828889343] [2024-11-10 06:01:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:47,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 06:01:47,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221281256] [2024-11-10 06:01:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:47,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:01:47,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:01:47,822 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) [2024-11-10 06:01:47,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 06:01:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:47,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 06:01:47,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 06:01:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-10 06:01:48,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 06:01:48,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:01:48,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828889343] [2024-11-10 06:01:48,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 06:01:48,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221281256] [2024-11-10 06:01:48,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221281256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 06:01:48,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 06:01:48,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-10 06:01:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766008764] [2024-11-10 06:01:48,524 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 06:01:48,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 06:01:48,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:01:48,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 06:01:48,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 06:01:48,526 INFO L87 Difference]: Start difference. First operand 397 states and 532 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 06:01:48,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:01:48,810 INFO L93 Difference]: Finished difference Result 754 states and 1003 transitions. [2024-11-10 06:01:48,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 06:01:48,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2024-11-10 06:01:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:01:48,814 INFO L225 Difference]: With dead ends: 754 [2024-11-10 06:01:48,814 INFO L226 Difference]: Without dead ends: 417 [2024-11-10 06:01:48,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-10 06:01:48,816 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 55 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 06:01:48,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 230 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 06:01:48,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-10 06:01:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 397. [2024-11-10 06:01:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 285 states have (on average 1.2035087719298245) internal successors, (343), 290 states have internal predecessors, (343), 93 states have call successors, (93), 18 states have call predecessors, (93), 18 states have return successors, (93), 88 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-10 06:01:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 529 transitions. [2024-11-10 06:01:48,875 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 529 transitions. Word has length 145 [2024-11-10 06:01:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:01:48,876 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 529 transitions. [2024-11-10 06:01:48,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-10 06:01:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 529 transitions. [2024-11-10 06:01:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 06:01:48,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:01:48,878 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:01:48,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 06:01:49,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:01:49,080 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:01:49,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:01:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2142608227, now seen corresponding path program 1 times [2024-11-10 06:01:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:01:49,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630047533] [2024-11-10 06:01:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:49,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:01:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 06:01:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645285968] [2024-11-10 06:01:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:01:49,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:01:49,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:01:49,197 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) [2024-11-10 06:01:49,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 06:01:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:01:49,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 06:01:49,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 06:01:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 199 proven. 135 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-10 06:01:50,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 06:02:00,225 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-10 06:02:13,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:02:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630047533] [2024-11-10 06:02:13,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 06:02:13,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645285968] [2024-11-10 06:02:13,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645285968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 06:02:13,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 06:02:13,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-10 06:02:13,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387544238] [2024-11-10 06:02:13,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 06:02:13,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 06:02:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:02:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 06:02:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=298, Unknown=1, NotChecked=0, Total=420 [2024-11-10 06:02:13,512 INFO L87 Difference]: Start difference. First operand 397 states and 529 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-10 06:02:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:02:14,355 INFO L93 Difference]: Finished difference Result 731 states and 952 transitions. [2024-11-10 06:02:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 06:02:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 146 [2024-11-10 06:02:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:02:14,360 INFO L225 Difference]: With dead ends: 731 [2024-11-10 06:02:14,361 INFO L226 Difference]: Without dead ends: 442 [2024-11-10 06:02:14,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=176, Invalid=423, Unknown=1, NotChecked=0, Total=600 [2024-11-10 06:02:14,364 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 72 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 06:02:14,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 443 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 06:02:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-10 06:02:14,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 375. [2024-11-10 06:02:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 265 states have (on average 1.1849056603773584) internal successors, (314), 268 states have internal predecessors, (314), 87 states have call successors, (87), 22 states have call predecessors, (87), 22 states have return successors, (87), 84 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-10 06:02:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 488 transitions. [2024-11-10 06:02:14,421 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 488 transitions. Word has length 146 [2024-11-10 06:02:14,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:02:14,422 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 488 transitions. [2024-11-10 06:02:14,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-10 06:02:14,422 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 488 transitions. [2024-11-10 06:02:14,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 06:02:14,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:02:14,424 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 06:02:14,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 06:02:14,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:02:14,625 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:02:14,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:02:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash 702951741, now seen corresponding path program 1 times [2024-11-10 06:02:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:02:14,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003676703] [2024-11-10 06:02:14,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:02:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:02:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 06:02:14,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502823653] [2024-11-10 06:02:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:02:14,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 06:02:14,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:02:14,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 06:02:14,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 06:02:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:02:15,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-10 06:02:15,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 06:02:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 430 proven. 198 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-10 06:02:18,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 06:02:37,091 WARN L286 SmtUtils]: Spent 6.72s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)