./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.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 21a1125ae0cc2adce78274abe3bb5e8e98d6a4c7db57dc682e7d7594a508e739 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:08:32,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:08:32,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:08:32,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:08:32,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:08:32,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:08:32,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:08:32,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:08:32,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:08:32,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:08:32,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:08:32,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:08:32,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:08:32,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:08:32,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:08:32,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:08:32,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:08:32,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:08:32,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:08:32,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:08:32,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:08:32,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:08:32,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:08:32,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:08:32,994 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:08:32,994 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:08:32,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:08:32,995 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:08:32,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:08:32,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:08:32,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:08:32,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:08:32,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:08:32,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:08:32,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:08:32,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:08:32,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:08:32,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:08:32,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:08:32,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:08:32,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:08:33,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:08:33,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21a1125ae0cc2adce78274abe3bb5e8e98d6a4c7db57dc682e7d7594a508e739 [2024-11-18 22:08:33,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:08:33,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:08:33,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:08:33,274 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:08:33,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:08:33,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.i [2024-11-18 22:08:34,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:08:34,885 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:08:34,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-1.i [2024-11-18 22:08:34,894 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01450d281/66aaeeb9bd9745b796ec498a322093b7/FLAG53e6221a2 [2024-11-18 22:08:35,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01450d281/66aaeeb9bd9745b796ec498a322093b7 [2024-11-18 22:08:35,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:08:35,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:08:35,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:08:35,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:08:35,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:08:35,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60700864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35, skipping insertion in model container [2024-11-18 22:08:35,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:08:35,514 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_floatingpointinfluence_no-floats_file-1.i[915,928] [2024-11-18 22:08:35,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:08:35,602 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:08:35,619 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_floatingpointinfluence_no-floats_file-1.i[915,928] [2024-11-18 22:08:35,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:08:35,688 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:08:35,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35 WrapperNode [2024-11-18 22:08:35,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:08:35,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:08:35,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:08:35,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:08:35,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,741 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-11-18 22:08:35,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:08:35,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:08:35,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:08:35,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:08:35,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,777 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]. [2024-11-18 22:08:35,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:08:35,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:08:35,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:08:35,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:08:35,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (1/1) ... [2024-11-18 22:08:35,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:08:35,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:08:35,834 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) [2024-11-18 22:08:35,842 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 [2024-11-18 22:08:35,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:08:35,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:08:35,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:08:35,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:08:35,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:08:35,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:08:35,993 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:08:35,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:08:36,302 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 22:08:36,305 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:08:36,321 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:08:36,321 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:08:36,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:08:36 BoogieIcfgContainer [2024-11-18 22:08:36,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:08:36,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:08:36,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:08:36,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:08:36,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:08:35" (1/3) ... [2024-11-18 22:08:36,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dd17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:08:36, skipping insertion in model container [2024-11-18 22:08:36,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:08:35" (2/3) ... [2024-11-18 22:08:36,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dd17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:08:36, skipping insertion in model container [2024-11-18 22:08:36,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:08:36" (3/3) ... [2024-11-18 22:08:36,331 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-1.i [2024-11-18 22:08:36,348 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:08:36,349 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:08:36,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:08:36,428 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;@57120b5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:08:36,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:08:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 22:08:36,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:36,448 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:36,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:36,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:36,455 INFO L85 PathProgramCache]: Analyzing trace with hash 119796604, now seen corresponding path program 1 times [2024-11-18 22:08:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420048638] [2024-11-18 22:08:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:36,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-18 22:08:36,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:36,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420048638] [2024-11-18 22:08:36,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420048638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:08:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605763156] [2024-11-18 22:08:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:36,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:08:36,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:08:36,736 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) [2024-11-18 22:08:36,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:08:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:36,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:08:36,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:08:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-18 22:08:36,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:08:36,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605763156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:36,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:08:36,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:08:36,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348746018] [2024-11-18 22:08:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:36,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:08:36,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:36,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:08:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:08:36,950 INFO L87 Difference]: Start difference. First operand has 61 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 22:08:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:36,978 INFO L93 Difference]: Finished difference Result 115 states and 189 transitions. [2024-11-18 22:08:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:08:36,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 112 [2024-11-18 22:08:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:36,989 INFO L225 Difference]: With dead ends: 115 [2024-11-18 22:08:36,990 INFO L226 Difference]: Without dead ends: 57 [2024-11-18 22:08:36,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:08:36,997 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:36,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:08:37,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-18 22:08:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-18 22:08:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2024-11-18 22:08:37,056 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 112 [2024-11-18 22:08:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:37,058 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2024-11-18 22:08:37,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 22:08:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2024-11-18 22:08:37,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 22:08:37,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:37,064 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:37,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:08:37,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:08:37,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:37,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash -918120518, now seen corresponding path program 1 times [2024-11-18 22:08:37,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:37,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147946928] [2024-11-18 22:08:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:38,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:38,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147946928] [2024-11-18 22:08:38,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147946928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:38,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:38,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:08:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329909251] [2024-11-18 22:08:38,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:38,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:08:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:08:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:08:38,432 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:38,747 INFO L93 Difference]: Finished difference Result 155 states and 218 transitions. [2024-11-18 22:08:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:08:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112 [2024-11-18 22:08:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:38,750 INFO L225 Difference]: With dead ends: 155 [2024-11-18 22:08:38,750 INFO L226 Difference]: Without dead ends: 101 [2024-11-18 22:08:38,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:08:38,754 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 47 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:38,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 388 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:08:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-18 22:08:38,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 69. [2024-11-18 22:08:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 99 transitions. [2024-11-18 22:08:38,778 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 99 transitions. Word has length 112 [2024-11-18 22:08:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:38,780 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 99 transitions. [2024-11-18 22:08:38,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 99 transitions. [2024-11-18 22:08:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 22:08:38,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:38,785 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:38,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:08:38,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:38,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash -659955080, now seen corresponding path program 1 times [2024-11-18 22:08:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:38,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148854373] [2024-11-18 22:08:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:39,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:39,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148854373] [2024-11-18 22:08:39,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148854373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:39,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:39,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:08:39,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386780839] [2024-11-18 22:08:39,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:39,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:08:39,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:08:39,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:08:39,407 INFO L87 Difference]: Start difference. First operand 69 states and 99 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:39,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:39,637 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2024-11-18 22:08:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:08:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112 [2024-11-18 22:08:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:39,644 INFO L225 Difference]: With dead ends: 167 [2024-11-18 22:08:39,644 INFO L226 Difference]: Without dead ends: 101 [2024-11-18 22:08:39,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:08:39,651 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 46 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:39,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 388 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:08:39,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-18 22:08:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 69. [2024-11-18 22:08:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 99 transitions. [2024-11-18 22:08:39,673 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 99 transitions. Word has length 112 [2024-11-18 22:08:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:39,674 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 99 transitions. [2024-11-18 22:08:39,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 99 transitions. [2024-11-18 22:08:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 22:08:39,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:39,678 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:39,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 22:08:39,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:39,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash -185023367, now seen corresponding path program 1 times [2024-11-18 22:08:39,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:39,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823406585] [2024-11-18 22:08:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:39,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823406585] [2024-11-18 22:08:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823406585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:40,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:40,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 22:08:40,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116900937] [2024-11-18 22:08:40,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:40,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 22:08:40,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 22:08:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 22:08:40,061 INFO L87 Difference]: Start difference. First operand 69 states and 99 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:40,200 INFO L93 Difference]: Finished difference Result 169 states and 237 transitions. [2024-11-18 22:08:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:08:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2024-11-18 22:08:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:40,203 INFO L225 Difference]: With dead ends: 169 [2024-11-18 22:08:40,203 INFO L226 Difference]: Without dead ends: 103 [2024-11-18 22:08:40,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 22:08:40,208 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 65 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:40,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 383 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:08:40,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-18 22:08:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2024-11-18 22:08:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2024-11-18 22:08:40,219 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 113 [2024-11-18 22:08:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:40,220 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2024-11-18 22:08:40,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2024-11-18 22:08:40,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 22:08:40,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:40,228 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:40,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 22:08:40,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:40,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1196140617, now seen corresponding path program 1 times [2024-11-18 22:08:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:40,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774296925] [2024-11-18 22:08:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:40,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:40,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774296925] [2024-11-18 22:08:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774296925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:40,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:40,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:08:40,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920754805] [2024-11-18 22:08:40,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:40,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:08:40,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:40,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:08:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:08:40,717 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:40,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:40,935 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2024-11-18 22:08:40,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:08:40,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2024-11-18 22:08:40,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:40,937 INFO L225 Difference]: With dead ends: 192 [2024-11-18 22:08:40,937 INFO L226 Difference]: Without dead ends: 124 [2024-11-18 22:08:40,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:08:40,939 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 104 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:40,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 598 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:08:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-18 22:08:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 71. [2024-11-18 22:08:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2024-11-18 22:08:40,950 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 113 [2024-11-18 22:08:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:40,952 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2024-11-18 22:08:40,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2024-11-18 22:08:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 22:08:40,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:40,954 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:40,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 22:08:40,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:40,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash -937975179, now seen corresponding path program 1 times [2024-11-18 22:08:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778594993] [2024-11-18 22:08:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:41,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:41,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778594993] [2024-11-18 22:08:41,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778594993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:41,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:41,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:08:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951926337] [2024-11-18 22:08:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:41,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:08:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:08:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:08:41,403 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:41,602 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2024-11-18 22:08:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 22:08:41,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2024-11-18 22:08:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:41,605 INFO L225 Difference]: With dead ends: 192 [2024-11-18 22:08:41,605 INFO L226 Difference]: Without dead ends: 124 [2024-11-18 22:08:41,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:08:41,606 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 76 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:41,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 742 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:08:41,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-18 22:08:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 59. [2024-11-18 22:08:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-18 22:08:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2024-11-18 22:08:41,613 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 113 [2024-11-18 22:08:41,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:41,614 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2024-11-18 22:08:41,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:41,614 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2024-11-18 22:08:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 22:08:41,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:41,616 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:41,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 22:08:41,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:41,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1900989205, now seen corresponding path program 1 times [2024-11-18 22:08:41,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:41,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903219158] [2024-11-18 22:08:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:42,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:42,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903219158] [2024-11-18 22:08:42,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903219158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:42,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:42,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 22:08:42,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436831748] [2024-11-18 22:08:42,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:42,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 22:08:42,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:42,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 22:08:42,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:08:42,272 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:42,777 INFO L93 Difference]: Finished difference Result 127 states and 175 transitions. [2024-11-18 22:08:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 22:08:42,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 114 [2024-11-18 22:08:42,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:42,780 INFO L225 Difference]: With dead ends: 127 [2024-11-18 22:08:42,780 INFO L226 Difference]: Without dead ends: 125 [2024-11-18 22:08:42,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-18 22:08:42,781 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 107 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:42,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 690 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:08:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-18 22:08:42,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2024-11-18 22:08:42,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 41 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 22:08:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 170 transitions. [2024-11-18 22:08:42,810 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 170 transitions. Word has length 114 [2024-11-18 22:08:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:42,811 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 170 transitions. [2024-11-18 22:08:42,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions. [2024-11-18 22:08:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 22:08:42,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:42,815 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:42,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 22:08:42,815 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:42,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1295387281, now seen corresponding path program 1 times [2024-11-18 22:08:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:42,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243548756] [2024-11-18 22:08:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:42,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:42,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:42,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243548756] [2024-11-18 22:08:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243548756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:42,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:08:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748159368] [2024-11-18 22:08:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:42,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:08:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:08:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:08:42,885 INFO L87 Difference]: Start difference. First operand 121 states and 170 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:42,947 INFO L93 Difference]: Finished difference Result 279 states and 385 transitions. [2024-11-18 22:08:42,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:08:42,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2024-11-18 22:08:42,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:42,952 INFO L225 Difference]: With dead ends: 279 [2024-11-18 22:08:42,952 INFO L226 Difference]: Without dead ends: 183 [2024-11-18 22:08:42,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:08:42,953 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 49 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:42,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 143 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:08:42,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-18 22:08:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2024-11-18 22:08:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 110 states have (on average 1.1363636363636365) internal successors, (125), 114 states have internal predecessors, (125), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-18 22:08:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 251 transitions. [2024-11-18 22:08:42,992 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 251 transitions. Word has length 115 [2024-11-18 22:08:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:42,994 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 251 transitions. [2024-11-18 22:08:42,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 251 transitions. [2024-11-18 22:08:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 22:08:42,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:42,996 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:42,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 22:08:42,997 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:42,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash 515115771, now seen corresponding path program 1 times [2024-11-18 22:08:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:42,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209926338] [2024-11-18 22:08:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:42,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:43,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:43,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209926338] [2024-11-18 22:08:43,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209926338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:43,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:43,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:08:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463422135] [2024-11-18 22:08:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:43,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:08:43,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:08:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:08:43,064 INFO L87 Difference]: Start difference. First operand 180 states and 251 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:43,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:43,124 INFO L93 Difference]: Finished difference Result 312 states and 429 transitions. [2024-11-18 22:08:43,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:08:43,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2024-11-18 22:08:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:43,126 INFO L225 Difference]: With dead ends: 312 [2024-11-18 22:08:43,126 INFO L226 Difference]: Without dead ends: 161 [2024-11-18 22:08:43,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:08:43,127 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 47 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:43,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 166 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:08:43,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-18 22:08:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 130. [2024-11-18 22:08:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 85 states have internal predecessors, (94), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 22:08:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 176 transitions. [2024-11-18 22:08:43,148 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 176 transitions. Word has length 115 [2024-11-18 22:08:43,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:43,150 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 176 transitions. [2024-11-18 22:08:43,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 176 transitions. [2024-11-18 22:08:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 22:08:43,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:43,152 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:43,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 22:08:43,152 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:43,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash -956762095, now seen corresponding path program 1 times [2024-11-18 22:08:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209322383] [2024-11-18 22:08:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:43,557 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:43,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209322383] [2024-11-18 22:08:43,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209322383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:43,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:43,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:08:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707898945] [2024-11-18 22:08:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:08:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:43,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:08:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:08:43,561 INFO L87 Difference]: Start difference. First operand 130 states and 176 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:43,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:43,948 INFO L93 Difference]: Finished difference Result 173 states and 230 transitions. [2024-11-18 22:08:43,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:08:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2024-11-18 22:08:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:43,951 INFO L225 Difference]: With dead ends: 173 [2024-11-18 22:08:43,951 INFO L226 Difference]: Without dead ends: 171 [2024-11-18 22:08:43,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:08:43,952 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 119 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:43,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 699 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:08:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-18 22:08:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 143. [2024-11-18 22:08:43,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 98 states have internal predecessors, (107), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 22:08:43,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 189 transitions. [2024-11-18 22:08:43,976 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 189 transitions. Word has length 115 [2024-11-18 22:08:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:43,978 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 189 transitions. [2024-11-18 22:08:43,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:43,979 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 189 transitions. [2024-11-18 22:08:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 22:08:43,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:43,981 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:43,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 22:08:43,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:43,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash 211692513, now seen corresponding path program 1 times [2024-11-18 22:08:43,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:43,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467060730] [2024-11-18 22:08:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:43,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-18 22:08:44,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222664661] [2024-11-18 22:08:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:44,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:08:44,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:08:44,030 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) [2024-11-18 22:08:44,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 22:08:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:44,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-18 22:08:44,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:08:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 235 proven. 39 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-18 22:08:48,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:08:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-18 22:08:51,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467060730] [2024-11-18 22:08:51,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-18 22:08:51,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222664661] [2024-11-18 22:08:51,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222664661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 22:08:51,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 22:08:51,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2024-11-18 22:08:51,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40587841] [2024-11-18 22:08:51,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 22:08:51,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 22:08:51,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:51,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 22:08:51,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-18 22:08:51,742 INFO L87 Difference]: Start difference. First operand 143 states and 189 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 22:08:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:53,279 INFO L93 Difference]: Finished difference Result 196 states and 251 transitions. [2024-11-18 22:08:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 22:08:53,280 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 116 [2024-11-18 22:08:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:53,282 INFO L225 Difference]: With dead ends: 196 [2024-11-18 22:08:53,282 INFO L226 Difference]: Without dead ends: 194 [2024-11-18 22:08:53,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2024-11-18 22:08:53,284 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 178 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:53,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 771 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 22:08:53,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-18 22:08:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 146. [2024-11-18 22:08:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.1134020618556701) internal successors, (108), 99 states have internal predecessors, (108), 41 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 22:08:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2024-11-18 22:08:53,305 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 116 [2024-11-18 22:08:53,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:53,306 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2024-11-18 22:08:53,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 22:08:53,306 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2024-11-18 22:08:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 22:08:53,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:53,307 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:53,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 22:08:53,512 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,SelfDestructingSolverStorable10 [2024-11-18 22:08:53,513 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:53,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -561945216, now seen corresponding path program 1 times [2024-11-18 22:08:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:53,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585622341] [2024-11-18 22:08:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585622341] [2024-11-18 22:08:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585622341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:54,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:08:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535474097] [2024-11-18 22:08:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:54,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:08:54,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:08:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:08:54,118 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:54,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:54,517 INFO L93 Difference]: Finished difference Result 170 states and 214 transitions. [2024-11-18 22:08:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:08:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2024-11-18 22:08:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:54,520 INFO L225 Difference]: With dead ends: 170 [2024-11-18 22:08:54,520 INFO L226 Difference]: Without dead ends: 168 [2024-11-18 22:08:54,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:08:54,521 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 79 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:54,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 524 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:08:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-18 22:08:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 146. [2024-11-18 22:08:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.1134020618556701) internal successors, (108), 99 states have internal predecessors, (108), 41 states have call successors, (41), 7 states have call predecessors, (41), 7 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-18 22:08:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2024-11-18 22:08:54,539 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 116 [2024-11-18 22:08:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:54,539 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2024-11-18 22:08:54,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:54,540 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2024-11-18 22:08:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 22:08:54,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:08:54,542 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:54,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 22:08:54,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:08:54,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:08:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash -954972226, now seen corresponding path program 1 times [2024-11-18 22:08:54,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:08:54,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347899821] [2024-11-18 22:08:54,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:08:54,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:08:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:08:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-18 22:08:55,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:08:55,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347899821] [2024-11-18 22:08:55,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347899821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:08:55,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:08:55,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:08:55,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774610936] [2024-11-18 22:08:55,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:08:55,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:08:55,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:08:55,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:08:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:08:55,110 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:08:55,554 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2024-11-18 22:08:55,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:08:55,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2024-11-18 22:08:55,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:08:55,556 INFO L225 Difference]: With dead ends: 162 [2024-11-18 22:08:55,556 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 22:08:55,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:08:55,557 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 72 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:08:55,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 554 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:08:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 22:08:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 22:08:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 22:08:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 22:08:55,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 116 [2024-11-18 22:08:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:08:55,560 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 22:08:55,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-18 22:08:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 22:08:55,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 22:08:55,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 22:08:55,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 22:08:55,566 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:08:55,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 22:08:56,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 22:08:56,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:08:56 BoogieIcfgContainer [2024-11-18 22:08:56,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 22:08:56,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 22:08:56,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 22:08:56,230 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 22:08:56,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:08:36" (3/4) ... [2024-11-18 22:08:56,232 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 22:08:56,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-18 22:08:56,243 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-18 22:08:56,243 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 22:08:56,244 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 22:08:56,244 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 22:08:56,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 22:08:56,351 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 22:08:56,352 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 22:08:56,353 INFO L158 Benchmark]: Toolchain (without parser) took 21068.53ms. Allocated memory was 174.1MB in the beginning and 574.6MB in the end (delta: 400.6MB). Free memory was 118.0MB in the beginning and 351.4MB in the end (delta: -233.4MB). Peak memory consumption was 168.5MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,353 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 22:08:56,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.31ms. Allocated memory is still 174.1MB. Free memory was 118.0MB in the beginning and 103.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 101.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,354 INFO L158 Benchmark]: Boogie Preprocessor took 46.96ms. Allocated memory is still 174.1MB. Free memory was 101.6MB in the beginning and 99.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,354 INFO L158 Benchmark]: RCFGBuilder took 531.74ms. Allocated memory is still 174.1MB. Free memory was 99.2MB in the beginning and 81.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,354 INFO L158 Benchmark]: TraceAbstraction took 19904.19ms. Allocated memory was 174.1MB in the beginning and 574.6MB in the end (delta: 400.6MB). Free memory was 81.2MB in the beginning and 357.7MB in the end (delta: -276.5MB). Peak memory consumption was 126.6MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,355 INFO L158 Benchmark]: Witness Printer took 122.94ms. Allocated memory is still 574.6MB. Free memory was 357.7MB in the beginning and 351.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 22:08:56,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.31ms. Allocated memory is still 174.1MB. Free memory was 118.0MB in the beginning and 103.8MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 174.1MB. Free memory was 103.8MB in the beginning and 101.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.96ms. Allocated memory is still 174.1MB. Free memory was 101.6MB in the beginning and 99.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 531.74ms. Allocated memory is still 174.1MB. Free memory was 99.2MB in the beginning and 81.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19904.19ms. Allocated memory was 174.1MB in the beginning and 574.6MB in the end (delta: 400.6MB). Free memory was 81.2MB in the beginning and 357.7MB in the end (delta: -276.5MB). Peak memory consumption was 126.6MB. Max. memory is 16.1GB. * Witness Printer took 122.94ms. Allocated memory is still 574.6MB. Free memory was 357.7MB in the beginning and 351.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.2s, OverallIterations: 13, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1025 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 989 mSDsluCounter, 6128 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4765 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3051 IncrementalHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 1363 mSDtfsCounter, 3051 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=8, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 350 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 1710 NumberOfCodeBlocks, 1710 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1695 ConstructedInterpolants, 12 QuantifiedInterpolants, 4814 SizeOfPredicates, 13 NumberOfNonLiveVariables, 526 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 8077/8160 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: (((0 <= var_1_11) && (var_1_13 == var_1_16)) || (((var_1_16 != 0) && (0 <= var_1_11)) && (var_1_11 != 0))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && (((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (last_1_var_1_12 == \old(last_1_var_1_12)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 22:08:56,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE