./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.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 4d07f6d4eb00f77dbf0a6f761a1dfb43bb3a584f994c1eafe03cf0135e1262b3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:44:50,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:44:50,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:44:50,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:44:50,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:44:50,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:44:50,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:44:50,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:44:50,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:44:50,610 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:44:50,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:44:50,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:44:50,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:44:50,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:44:50,612 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:44:50,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:44:50,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:44:50,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:44:50,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:44:50,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:44:50,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:44:50,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:44:50,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:44:50,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:44:50,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:44:50,615 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:44:50,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:44:50,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:44:50,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:44:50,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:44:50,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:44:50,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:44:50,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:50,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:44:50,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:44:50,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:44:50,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:44:50,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:44:50,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:44:50,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:44:50,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:44:50,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:44:50,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d07f6d4eb00f77dbf0a6f761a1dfb43bb3a584f994c1eafe03cf0135e1262b3 [2024-10-14 11:44:50,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:44:50,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:44:50,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:44:50,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:44:50,892 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:44:50,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:44:52,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:44:52,395 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:44:52,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:44:52,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43cc49cc8/ad7857a0be6149ba97ddf80ad4286ae9/FLAGcaa727249 [2024-10-14 11:44:52,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43cc49cc8/ad7857a0be6149ba97ddf80ad4286ae9 [2024-10-14 11:44:52,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:44:52,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:44:52,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:52,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:44:52,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:44:52,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55be8de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52, skipping insertion in model container [2024-10-14 11:44:52,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:44:52,553 WARN L248 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_loopvsstraightlinecode_25-while_file-33.i[915,928] [2024-10-14 11:44:52,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:52,589 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:44:52,598 WARN L248 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_loopvsstraightlinecode_25-while_file-33.i[915,928] [2024-10-14 11:44:52,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:52,641 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:44:52,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52 WrapperNode [2024-10-14 11:44:52,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:52,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:52,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:44:52,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:44:52,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,679 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-10-14 11:44:52,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:52,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:44:52,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:44:52,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:44:52,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,715 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]. [2024-10-14 11:44:52,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:44:52,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:44:52,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:44:52,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:44:52,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (1/1) ... [2024-10-14 11:44:52,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:52,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:44:52,767 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) [2024-10-14 11:44:52,773 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 [2024-10-14 11:44:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:44:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:44:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:44:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:44:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:44:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:44:52,866 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:44:52,867 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:44:53,146 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-14 11:44:53,146 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:44:53,175 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:44:53,175 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:44:53,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:53 BoogieIcfgContainer [2024-10-14 11:44:53,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:44:53,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:44:53,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:44:53,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:44:53,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:52" (1/3) ... [2024-10-14 11:44:53,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab38d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:53, skipping insertion in model container [2024-10-14 11:44:53,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:52" (2/3) ... [2024-10-14 11:44:53,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab38d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:53, skipping insertion in model container [2024-10-14 11:44:53,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:53" (3/3) ... [2024-10-14 11:44:53,182 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:44:53,194 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:44:53,195 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:44:53,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:44:53,242 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;@1560b22d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:44:53,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:44:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 34 states have (on average 1.5) internal successors, (51), 35 states have internal predecessors, (51), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 11:44:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:44:53,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:53,251 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:53,252 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:53,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2029545313, now seen corresponding path program 1 times [2024-10-14 11:44:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017238010] [2024-10-14 11:44:53,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:53,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:53,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017238010] [2024-10-14 11:44:53,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017238010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:53,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:53,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:44:53,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399392858] [2024-10-14 11:44:53,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:53,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:44:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:44:53,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:53,511 INFO L87 Difference]: Start difference. First operand has 45 states, 34 states have (on average 1.5) internal successors, (51), 35 states have internal predecessors, (51), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:44:53,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:53,548 INFO L93 Difference]: Finished difference Result 85 states and 138 transitions. [2024-10-14 11:44:53,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:44:53,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2024-10-14 11:44:53,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:53,557 INFO L225 Difference]: With dead ends: 85 [2024-10-14 11:44:53,557 INFO L226 Difference]: Without dead ends: 41 [2024-10-14 11:44:53,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:53,563 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:53,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:44:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-14 11:44:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-14 11:44:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 11:44:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-10-14 11:44:53,603 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 61 [2024-10-14 11:44:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:53,604 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-10-14 11:44:53,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:44:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-10-14 11:44:53,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 11:44:53,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:53,608 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:53,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:44:53,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:53,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -371630427, now seen corresponding path program 1 times [2024-10-14 11:44:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:53,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111786918] [2024-10-14 11:44:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:53,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:53,860 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:53,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:53,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111786918] [2024-10-14 11:44:53,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111786918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:53,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:53,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:44:53,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751879599] [2024-10-14 11:44:53,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:53,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:44:53,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:53,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:44:53,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:44:53,863 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:53,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:53,939 INFO L93 Difference]: Finished difference Result 131 states and 181 transitions. [2024-10-14 11:44:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:44:53,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 61 [2024-10-14 11:44:53,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:53,942 INFO L225 Difference]: With dead ends: 131 [2024-10-14 11:44:53,942 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 11:44:53,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:44:53,944 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:53,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 145 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:53,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 11:44:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 82. [2024-10-14 11:44:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:44:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-10-14 11:44:53,967 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 61 [2024-10-14 11:44:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:53,967 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-10-14 11:44:53,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-10-14 11:44:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 11:44:53,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:53,969 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:53,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:44:53,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:53,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:53,971 INFO L85 PathProgramCache]: Analyzing trace with hash 141994523, now seen corresponding path program 1 times [2024-10-14 11:44:53,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:53,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905708820] [2024-10-14 11:44:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:53,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:54,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:54,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905708820] [2024-10-14 11:44:54,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905708820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:54,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:54,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:44:54,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699962809] [2024-10-14 11:44:54,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:54,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:44:54,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:54,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:44:54,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:44:54,156 INFO L87 Difference]: Start difference. First operand 82 states and 111 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:54,302 INFO L93 Difference]: Finished difference Result 172 states and 229 transitions. [2024-10-14 11:44:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:44:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2024-10-14 11:44:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:54,306 INFO L225 Difference]: With dead ends: 172 [2024-10-14 11:44:54,306 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 11:44:54,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:44:54,308 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 69 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:54,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 214 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 11:44:54,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 82. [2024-10-14 11:44:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:44:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 110 transitions. [2024-10-14 11:44:54,348 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 110 transitions. Word has length 65 [2024-10-14 11:44:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:54,348 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 110 transitions. [2024-10-14 11:44:54,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 110 transitions. [2024-10-14 11:44:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 11:44:54,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:54,349 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:54,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:44:54,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:54,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:54,350 INFO L85 PathProgramCache]: Analyzing trace with hash -869122727, now seen corresponding path program 1 times [2024-10-14 11:44:54,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:54,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444337186] [2024-10-14 11:44:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:54,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:55,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:55,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444337186] [2024-10-14 11:44:55,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444337186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:55,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:55,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:44:55,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316659573] [2024-10-14 11:44:55,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:55,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:44:55,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:55,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:44:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:44:55,146 INFO L87 Difference]: Start difference. First operand 82 states and 110 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:55,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:55,357 INFO L93 Difference]: Finished difference Result 212 states and 280 transitions. [2024-10-14 11:44:55,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:44:55,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2024-10-14 11:44:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:55,358 INFO L225 Difference]: With dead ends: 212 [2024-10-14 11:44:55,358 INFO L226 Difference]: Without dead ends: 131 [2024-10-14 11:44:55,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:44:55,360 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 59 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:55,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 238 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:55,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-14 11:44:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 109. [2024-10-14 11:44:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 81 states have internal predecessors, (96), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 11:44:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 144 transitions. [2024-10-14 11:44:55,372 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 144 transitions. Word has length 65 [2024-10-14 11:44:55,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:55,372 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 144 transitions. [2024-10-14 11:44:55,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:55,372 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 144 transitions. [2024-10-14 11:44:55,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 11:44:55,373 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:55,373 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:55,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:44:55,374 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:55,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:55,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1262149737, now seen corresponding path program 1 times [2024-10-14 11:44:55,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:55,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868659406] [2024-10-14 11:44:55,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:55,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:56,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:56,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868659406] [2024-10-14 11:44:56,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868659406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:56,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:56,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 11:44:56,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621421184] [2024-10-14 11:44:56,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:56,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 11:44:56,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 11:44:56,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:44:56,951 INFO L87 Difference]: Start difference. First operand 109 states and 144 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:57,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:57,874 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2024-10-14 11:44:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 11:44:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2024-10-14 11:44:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:57,876 INFO L225 Difference]: With dead ends: 152 [2024-10-14 11:44:57,876 INFO L226 Difference]: Without dead ends: 150 [2024-10-14 11:44:57,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2024-10-14 11:44:57,878 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 232 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:57,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 247 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 11:44:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-14 11:44:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 117. [2024-10-14 11:44:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 89 states have internal predecessors, (105), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 11:44:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 153 transitions. [2024-10-14 11:44:57,890 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 153 transitions. Word has length 65 [2024-10-14 11:44:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:57,891 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 153 transitions. [2024-10-14 11:44:57,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:44:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 153 transitions. [2024-10-14 11:44:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 11:44:57,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:57,892 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:57,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:44:57,892 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:57,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:57,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1351528367, now seen corresponding path program 1 times [2024-10-14 11:44:57,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:57,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473713827] [2024-10-14 11:44:57,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:57,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:44:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:44:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:44:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:44:59,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473713827] [2024-10-14 11:44:59,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473713827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:59,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:59,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 11:44:59,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017619108] [2024-10-14 11:44:59,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:59,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 11:44:59,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:59,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 11:44:59,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:44:59,537 INFO L87 Difference]: Start difference. First operand 117 states and 153 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:00,394 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2024-10-14 11:45:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 11:45:00,395 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 66 [2024-10-14 11:45:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:00,397 INFO L225 Difference]: With dead ends: 146 [2024-10-14 11:45:00,397 INFO L226 Difference]: Without dead ends: 144 [2024-10-14 11:45:00,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-10-14 11:45:00,398 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 88 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:00,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 233 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:45:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-10-14 11:45:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 125. [2024-10-14 11:45:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 97 states have (on average 1.1855670103092784) internal successors, (115), 97 states have internal predecessors, (115), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 11:45:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2024-10-14 11:45:00,421 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 66 [2024-10-14 11:45:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:00,421 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2024-10-14 11:45:00,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2024-10-14 11:45:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 11:45:00,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:00,423 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:00,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:45:00,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:00,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash -963632242, now seen corresponding path program 1 times [2024-10-14 11:45:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:45:00,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228296410] [2024-10-14 11:45:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:00,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:45:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:45:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:45:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:45:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:45:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:45:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:45:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:45:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:45:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:45:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:45:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:45:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:45:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:45:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 11:45:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:45:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:45:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-10-14 11:45:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:45:00,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228296410] [2024-10-14 11:45:00,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228296410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:00,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:00,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:45:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736678554] [2024-10-14 11:45:00,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:00,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:45:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:45:00,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:45:00,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:45:00,662 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 11:45:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:00,701 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2024-10-14 11:45:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:45:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2024-10-14 11:45:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:00,703 INFO L225 Difference]: With dead ends: 129 [2024-10-14 11:45:00,703 INFO L226 Difference]: Without dead ends: 80 [2024-10-14 11:45:00,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:45:00,705 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:00,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 111 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:45:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-14 11:45:00,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2024-10-14 11:45:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.1016949152542372) internal successors, (65), 59 states have internal predecessors, (65), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:00,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 97 transitions. [2024-10-14 11:45:00,719 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 97 transitions. Word has length 127 [2024-10-14 11:45:00,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:00,719 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 97 transitions. [2024-10-14 11:45:00,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 11:45:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 97 transitions. [2024-10-14 11:45:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 11:45:00,723 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:00,723 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:00,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 11:45:00,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1287417047, now seen corresponding path program 1 times [2024-10-14 11:45:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:45:00,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865319656] [2024-10-14 11:45:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:00,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:45:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:45:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:45:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:45:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:45:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:45:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 11:45:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:45:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 11:45:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 11:45:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 11:45:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 11:45:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 11:45:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 11:45:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 11:45:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 11:45:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 11:45:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 61 proven. 3 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-10-14 11:45:00,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:45:00,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865319656] [2024-10-14 11:45:00,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865319656] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:45:00,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940196204] [2024-10-14 11:45:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:45:00,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:45:00,968 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) [2024-10-14 11:45:00,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 11:45:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:01,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 11:45:01,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 330 proven. 3 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-10-14 11:45:07,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:45:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 49 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-10-14 11:45:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940196204] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 11:45:09,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 11:45:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 11 [2024-10-14 11:45:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587182812] [2024-10-14 11:45:09,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 11:45:09,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 11:45:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:45:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 11:45:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:45:09,629 INFO L87 Difference]: Start difference. First operand 78 states and 97 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-14 11:45:09,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:09,812 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2024-10-14 11:45:09,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 11:45:09,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 129 [2024-10-14 11:45:09,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:09,814 INFO L225 Difference]: With dead ends: 148 [2024-10-14 11:45:09,814 INFO L226 Difference]: Without dead ends: 98 [2024-10-14 11:45:09,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 283 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-14 11:45:09,815 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:09,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 171 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:45:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-10-14 11:45:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2024-10-14 11:45:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 71 states have (on average 1.056338028169014) internal successors, (75), 71 states have internal predecessors, (75), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2024-10-14 11:45:09,826 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 129 [2024-10-14 11:45:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:09,826 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2024-10-14 11:45:09,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-14 11:45:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2024-10-14 11:45:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 11:45:09,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:09,827 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:09,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 11:45:10,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:45:10,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:10,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:10,033 INFO L85 PathProgramCache]: Analyzing trace with hash -515481193, now seen corresponding path program 1 times [2024-10-14 11:45:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:45:10,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411812232] [2024-10-14 11:45:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:10,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:45:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 11:45:10,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195787976] [2024-10-14 11:45:10,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:10,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:45:10,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:45:10,097 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) [2024-10-14 11:45:10,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 11:45:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:45:10,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 11:45:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:45:10,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 11:45:10,374 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 11:45:10,375 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 11:45:10,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 11:45:10,578 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,SelfDestructingSolverStorable8 [2024-10-14 11:45:10,581 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:10,655 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 11:45:10,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:45:10 BoogieIcfgContainer [2024-10-14 11:45:10,660 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 11:45:10,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 11:45:10,661 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 11:45:10,661 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 11:45:10,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:53" (3/4) ... [2024-10-14 11:45:10,662 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 11:45:10,667 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 11:45:10,668 INFO L158 Benchmark]: Toolchain (without parser) took 18249.60ms. Allocated memory was 195.0MB in the beginning and 960.5MB in the end (delta: 765.5MB). Free memory was 122.7MB in the beginning and 595.7MB in the end (delta: -473.1MB). Peak memory consumption was 292.9MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,668 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:45:10,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.01ms. Allocated memory is still 195.0MB. Free memory was 122.7MB in the beginning and 109.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.30ms. Allocated memory is still 195.0MB. Free memory was 109.6MB in the beginning and 107.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,668 INFO L158 Benchmark]: Boogie Preprocessor took 46.62ms. Allocated memory is still 195.0MB. Free memory was 107.2MB in the beginning and 104.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,668 INFO L158 Benchmark]: RCFGBuilder took 448.80ms. Allocated memory is still 195.0MB. Free memory was 104.4MB in the beginning and 156.2MB in the end (delta: -51.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,669 INFO L158 Benchmark]: TraceAbstraction took 17482.99ms. Allocated memory was 195.0MB in the beginning and 960.5MB in the end (delta: 765.5MB). Free memory was 155.2MB in the beginning and 595.7MB in the end (delta: -440.5MB). Peak memory consumption was 327.0MB. Max. memory is 16.1GB. [2024-10-14 11:45:10,669 INFO L158 Benchmark]: Witness Printer took 6.61ms. Allocated memory is still 960.5MB. Free memory is still 595.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:45:10,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 195.0MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.01ms. Allocated memory is still 195.0MB. Free memory was 122.7MB in the beginning and 109.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.30ms. Allocated memory is still 195.0MB. Free memory was 109.6MB in the beginning and 107.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.62ms. Allocated memory is still 195.0MB. Free memory was 107.2MB in the beginning and 104.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.80ms. Allocated memory is still 195.0MB. Free memory was 104.4MB in the beginning and 156.2MB in the end (delta: -51.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17482.99ms. Allocated memory was 195.0MB in the beginning and 960.5MB in the end (delta: 765.5MB). Free memory was 155.2MB in the beginning and 595.7MB in the end (delta: -440.5MB). Peak memory consumption was 327.0MB. Max. memory is 16.1GB. * Witness Printer took 6.61ms. Allocated memory is still 960.5MB. Free memory is still 595.7MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of bitwiseOr at line 83, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] unsigned char var_1_7 = 200; [L24] unsigned char var_1_8 = 4; [L25] signed char var_1_9 = 50; [L26] signed char var_1_12 = -5; [L27] float var_1_13 = 999999999999.8; [L28] float var_1_14 = 100.5; [L29] float var_1_15 = 32.75; [L30] unsigned char var_1_16 = 1; [L31] unsigned char var_1_17 = 1; [L32] unsigned char var_1_18 = 128; [L33] unsigned char last_1_var_1_7 = 200; [L34] signed char last_1_var_1_9 = 50; [L87] isInitial = 1 [L88] FCALL initially() [L89] COND TRUE 1 [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=-255, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-272, var_1_7=200, var_1_8=-255, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=200, var_1_8=-255, var_1_9=50] [L46] COND TRUE var_1_18 == var_1_18 [L47] var_1_7 = var_1_8 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L49] signed short int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_3=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L50] COND FALSE !(var_1_18 == stepLocal_3) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L53] signed short int stepLocal_2 = var_1_1; [L54] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L55] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L56] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_2=-272, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND FALSE !(!(cond)) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L93] RET __VERIFIER_assert(property()) [L94] isInitial = 0 VAL [isInitial=0, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=-255, var_1_9=50] [L89] COND TRUE 1 [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=-272, var_1_7=-255, var_1_8=382, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=-255, var_1_1=126, var_1_7=-255, var_1_8=382, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=-255, var_1_8=382, var_1_9=50] [L46] COND TRUE var_1_18 == var_1_18 [L47] var_1_7 = var_1_8 VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L49] signed short int stepLocal_3 = var_1_1; VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, stepLocal_3=126, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L50] COND TRUE var_1_18 == stepLocal_3 [L51] var_1_13 = (var_1_14 - var_1_15) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L53] signed short int stepLocal_2 = var_1_1; [L54] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=126, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L55] COND TRUE \read(var_1_16) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, stepLocal_1=0, stepLocal_2=126, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L56] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, stepLocal_2=126, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] [L19] reach_error() VAL [isInitial=0, last_1_var_1_7=-255, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=382, var_1_1=126, var_1_7=382, var_1_8=382, var_1_9=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 9, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 572 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 566 mSDsluCounter, 1413 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1062 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 934 IncrementalHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 351 mSDtfsCounter, 934 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 439 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 98 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 887 ConstructedInterpolants, 0 QuantifiedInterpolants, 8010 SizeOfPredicates, 16 NumberOfNonLiveVariables, 286 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2679/2712 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 11:45:10,719 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 4d07f6d4eb00f77dbf0a6f761a1dfb43bb3a584f994c1eafe03cf0135e1262b3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:45:12,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:45:12,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 11:45:12,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:45:12,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:45:12,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:45:12,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:45:12,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:45:12,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:45:12,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:45:12,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:45:12,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:45:12,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:45:12,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:45:12,898 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:45:12,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:45:12,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:45:12,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:45:12,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:45:12,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:45:12,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:45:12,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:45:12,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:45:12,900 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 11:45:12,901 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 11:45:12,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:45:12,901 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 11:45:12,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:45:12,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:45:12,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:45:12,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:45:12,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:45:12,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:45:12,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:45:12,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:45:12,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:45:12,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:45:12,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:45:12,904 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 11:45:12,904 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 11:45:12,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:45:12,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:45:12,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:45:12,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:45:12,908 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 11:45:12,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d07f6d4eb00f77dbf0a6f761a1dfb43bb3a584f994c1eafe03cf0135e1262b3 [2024-10-14 11:45:13,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:45:13,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:45:13,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:45:13,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:45:13,181 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:45:13,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:45:14,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:45:14,775 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:45:14,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:45:14,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f04aa545/65ec7e9e99554e21beb49313252d22c9/FLAGc217bd319 [2024-10-14 11:45:15,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f04aa545/65ec7e9e99554e21beb49313252d22c9 [2024-10-14 11:45:15,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:45:15,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:45:15,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:45:15,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:45:15,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:45:15,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1007784b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15, skipping insertion in model container [2024-10-14 11:45:15,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:45:15,252 WARN L248 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_loopvsstraightlinecode_25-while_file-33.i[915,928] [2024-10-14 11:45:15,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:45:15,309 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:45:15,320 WARN L248 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_loopvsstraightlinecode_25-while_file-33.i[915,928] [2024-10-14 11:45:15,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:45:15,364 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:45:15,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15 WrapperNode [2024-10-14 11:45:15,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:45:15,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:45:15,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:45:15,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:45:15,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,407 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-10-14 11:45:15,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:45:15,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:45:15,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:45:15,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:45:15,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,436 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]. [2024-10-14 11:45:15,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:45:15,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:45:15,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:45:15,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:45:15,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (1/1) ... [2024-10-14 11:45:15,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:45:15,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:45:15,491 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) [2024-10-14 11:45:15,493 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 [2024-10-14 11:45:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:45:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 11:45:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:45:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:45:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:45:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:45:15,623 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:45:15,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:45:15,857 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-14 11:45:15,858 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:45:15,906 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:45:15,906 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:45:15,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:15 BoogieIcfgContainer [2024-10-14 11:45:15,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:45:15,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:45:15,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:45:15,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:45:15,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:45:15" (1/3) ... [2024-10-14 11:45:15,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c03a15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:15, skipping insertion in model container [2024-10-14 11:45:15,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:45:15" (2/3) ... [2024-10-14 11:45:15,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c03a15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:45:15, skipping insertion in model container [2024-10-14 11:45:15,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:45:15" (3/3) ... [2024-10-14 11:45:15,913 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-33.i [2024-10-14 11:45:15,924 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:45:15,925 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:45:15,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:45:15,982 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;@24bb7a42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:45:15,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:45:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 11:45:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 11:45:15,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:15,994 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:15,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:15,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash -349548776, now seen corresponding path program 1 times [2024-10-14 11:45:16,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:16,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592310336] [2024-10-14 11:45:16,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:16,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:16,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:16,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:16,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 11:45:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:16,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 11:45:16,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-14 11:45:16,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:45:16,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:16,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592310336] [2024-10-14 11:45:16,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592310336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:16,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:16,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:45:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404623605] [2024-10-14 11:45:16,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:16,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:45:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:16,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:45:16,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:45:16,257 INFO L87 Difference]: Start difference. First operand has 35 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:45:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:16,318 INFO L93 Difference]: Finished difference Result 67 states and 108 transitions. [2024-10-14 11:45:16,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:45:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2024-10-14 11:45:16,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:16,328 INFO L225 Difference]: With dead ends: 67 [2024-10-14 11:45:16,328 INFO L226 Difference]: Without dead ends: 33 [2024-10-14 11:45:16,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:45:16,333 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:16,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:45:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-10-14 11:45:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-10-14 11:45:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 11:45:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2024-10-14 11:45:16,367 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 57 [2024-10-14 11:45:16,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:16,367 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2024-10-14 11:45:16,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:45:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2024-10-14 11:45:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 11:45:16,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:16,372 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:16,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 11:45:16,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:16,580 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:16,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1083279452, now seen corresponding path program 1 times [2024-10-14 11:45:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:16,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627288583] [2024-10-14 11:45:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:16,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:16,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:16,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 11:45:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:16,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 11:45:16,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:16,897 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:45:16,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:45:16,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:16,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627288583] [2024-10-14 11:45:16,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627288583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:16,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:16,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:45:16,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943515735] [2024-10-14 11:45:16,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:16,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:45:16,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:45:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:45:16,902 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:17,080 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-10-14 11:45:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:45:17,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2024-10-14 11:45:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:17,086 INFO L225 Difference]: With dead ends: 103 [2024-10-14 11:45:17,086 INFO L226 Difference]: Without dead ends: 71 [2024-10-14 11:45:17,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:45:17,090 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:17,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 161 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:45:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-14 11:45:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2024-10-14 11:45:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2024-10-14 11:45:17,112 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 57 [2024-10-14 11:45:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:17,113 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2024-10-14 11:45:17,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2024-10-14 11:45:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 11:45:17,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:17,115 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:17,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-14 11:45:17,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:17,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:17,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash 690252442, now seen corresponding path program 1 times [2024-10-14 11:45:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:17,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877203722] [2024-10-14 11:45:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:17,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:17,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:17,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:17,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 11:45:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:17,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 11:45:17,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:17,565 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-14 11:45:17,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:45:17,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:17,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877203722] [2024-10-14 11:45:17,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877203722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:17,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:45:17,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139448709] [2024-10-14 11:45:17,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:17,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:45:17,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:45:17,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:45:17,568 INFO L87 Difference]: Start difference. First operand 63 states and 87 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:45:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:17,999 INFO L93 Difference]: Finished difference Result 145 states and 189 transitions. [2024-10-14 11:45:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 11:45:18,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2024-10-14 11:45:18,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:18,004 INFO L225 Difference]: With dead ends: 145 [2024-10-14 11:45:18,004 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 11:45:18,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-10-14 11:45:18,006 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 77 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:18,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 86 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:45:18,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 11:45:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2024-10-14 11:45:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 56 states have internal predecessors, (65), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2024-10-14 11:45:18,018 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 57 [2024-10-14 11:45:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:18,018 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2024-10-14 11:45:18,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-14 11:45:18,018 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2024-10-14 11:45:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 11:45:18,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:18,019 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:18,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-14 11:45:18,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:18,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:18,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -91506488, now seen corresponding path program 1 times [2024-10-14 11:45:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:18,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801266594] [2024-10-14 11:45:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:18,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:18,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:18,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-14 11:45:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:18,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 11:45:18,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:45:30,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:45:30,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:30,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801266594] [2024-10-14 11:45:30,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801266594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:30,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:30,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:45:30,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615639187] [2024-10-14 11:45:30,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:30,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:45:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:30,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:45:30,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:45:30,651 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:30,906 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2024-10-14 11:45:30,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 11:45:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2024-10-14 11:45:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:30,908 INFO L225 Difference]: With dead ends: 120 [2024-10-14 11:45:30,908 INFO L226 Difference]: Without dead ends: 118 [2024-10-14 11:45:30,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:45:30,910 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:30,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 140 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:45:30,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-14 11:45:30,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-10-14 11:45:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 82 states have (on average 1.146341463414634) internal successors, (94), 82 states have internal predecessors, (94), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 11:45:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2024-10-14 11:45:30,923 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 58 [2024-10-14 11:45:30,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:30,923 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2024-10-14 11:45:30,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2024-10-14 11:45:30,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 11:45:30,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:30,924 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:30,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-14 11:45:31,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:31,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:31,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1449162629, now seen corresponding path program 1 times [2024-10-14 11:45:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:31,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12484678] [2024-10-14 11:45:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:31,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:31,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:31,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:31,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-14 11:45:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:31,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 11:45:31,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:31,221 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 11:45:31,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:45:31,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12484678] [2024-10-14 11:45:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12484678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:45:31,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:45:31,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:45:31,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373243652] [2024-10-14 11:45:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:45:31,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:45:31,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:31,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:45:31,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:45:31,224 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:31,277 INFO L93 Difference]: Finished difference Result 120 states and 145 transitions. [2024-10-14 11:45:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:45:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 59 [2024-10-14 11:45:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:31,278 INFO L225 Difference]: With dead ends: 120 [2024-10-14 11:45:31,278 INFO L226 Difference]: Without dead ends: 80 [2024-10-14 11:45:31,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:45:31,279 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:31,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 69 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:45:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-14 11:45:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2024-10-14 11:45:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2024-10-14 11:45:31,289 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 59 [2024-10-14 11:45:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:31,289 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2024-10-14 11:45:31,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-14 11:45:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2024-10-14 11:45:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 11:45:31,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:31,291 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 11:45:31,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-14 11:45:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:31,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:31,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1583943509, now seen corresponding path program 1 times [2024-10-14 11:45:31,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:31,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159862509] [2024-10-14 11:45:31,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:31,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:31,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:31,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:31,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-14 11:45:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:31,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 11:45:31,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 278 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-14 11:45:43,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:45:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2024-10-14 11:45:47,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:45:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159862509] [2024-10-14 11:45:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159862509] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 11:45:47,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 11:45:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2024-10-14 11:45:47,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146945102] [2024-10-14 11:45:47,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 11:45:47,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 11:45:47,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:45:47,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 11:45:47,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-10-14 11:45:47,863 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-14 11:45:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:45:48,271 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2024-10-14 11:45:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:45:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 115 [2024-10-14 11:45:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:45:48,273 INFO L225 Difference]: With dead ends: 94 [2024-10-14 11:45:48,273 INFO L226 Difference]: Without dead ends: 92 [2024-10-14 11:45:48,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-10-14 11:45:48,276 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 31 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:45:48,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 91 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:45:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-14 11:45:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2024-10-14 11:45:48,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 11:45:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2024-10-14 11:45:48,297 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 115 [2024-10-14 11:45:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:45:48,299 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2024-10-14 11:45:48,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-14 11:45:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2024-10-14 11:45:48,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 11:45:48,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:45:48,303 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:45:48,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-14 11:45:48,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:48,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:45:48,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:45:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash -191063853, now seen corresponding path program 1 times [2024-10-14 11:45:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:45:48,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875822029] [2024-10-14 11:45:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:45:48,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:45:48,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:45:48,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:45:48,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-14 11:45:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:45:48,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 11:45:48,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:46:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 346 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-14 11:46:10,774 INFO L311 TraceCheckSpWp]: Computing backward predicates...