./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_50-1loop_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-10.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f04db10568a800b95189a827d616dfd35581f855ab463aa07cbc605d28fef196 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 11:44:46,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 11:44:46,666 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 11:44:46,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 11:44:46,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 11:44:46,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 11:44:46,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 11:44:46,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 11:44:46,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 11:44:46,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 11:44:46,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 11:44:46,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 11:44:46,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 11:44:46,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 11:44:46,719 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 11:44:46,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 11:44:46,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 11:44:46,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 11:44:46,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 11:44:46,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 11:44:46,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 11:44:46,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 11:44:46,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 11:44:46,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 11:44:46,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 11:44:46,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 11:44:46,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 11:44:46,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 11:44:46,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 11:44:46,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 11:44:46,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 11:44:46,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 11:44:46,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 11:44:46,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 11:44:46,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 11:44:46,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 11:44:46,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 11:44:46,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 11:44:46,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 11:44:46,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 11:44:46,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 11:44:46,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 11:44:46,737 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04db10568a800b95189a827d616dfd35581f855ab463aa07cbc605d28fef196 [2024-10-11 11:44:47,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 11:44:47,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 11:44:47,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 11:44:47,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 11:44:47,041 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 11:44:47,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-10.i [2024-10-11 11:44:48,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 11:44:48,757 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 11:44:48,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-10.i [2024-10-11 11:44:48,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/098cf1c85/197491f122d645d1ac8bba250386faa3/FLAG46178e52d [2024-10-11 11:44:49,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/098cf1c85/197491f122d645d1ac8bba250386faa3 [2024-10-11 11:44:49,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 11:44:49,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 11:44:49,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 11:44:49,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 11:44:49,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 11:44:49,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44384156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49, skipping insertion in model container [2024-10-11 11:44:49,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 11:44:49,366 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_50-1loop_file-10.i[915,928] [2024-10-11 11:44:49,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 11:44:49,436 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 11:44:49,447 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_50-1loop_file-10.i[915,928] [2024-10-11 11:44:49,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 11:44:49,499 INFO L204 MainTranslator]: Completed translation [2024-10-11 11:44:49,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49 WrapperNode [2024-10-11 11:44:49,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 11:44:49,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 11:44:49,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 11:44:49,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 11:44:49,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,559 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2024-10-11 11:44:49,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 11:44:49,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 11:44:49,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 11:44:49,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 11:44:49,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,602 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]. [2024-10-11 11:44:49,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 11:44:49,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 11:44:49,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 11:44:49,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 11:44:49,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (1/1) ... [2024-10-11 11:44:49,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 11:44:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 11:44:49,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 11:44:49,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 11:44:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 11:44:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 11:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 11:44:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 11:44:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 11:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 11:44:49,820 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 11:44:49,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 11:44:50,212 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-10-11 11:44:50,212 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 11:44:50,248 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 11:44:50,248 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 11:44:50,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:44:50 BoogieIcfgContainer [2024-10-11 11:44:50,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 11:44:50,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 11:44:50,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 11:44:50,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 11:44:50,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:44:49" (1/3) ... [2024-10-11 11:44:50,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b401125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:44:50, skipping insertion in model container [2024-10-11 11:44:50,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:44:49" (2/3) ... [2024-10-11 11:44:50,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b401125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:44:50, skipping insertion in model container [2024-10-11 11:44:50,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:44:50" (3/3) ... [2024-10-11 11:44:50,260 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-10.i [2024-10-11 11:44:50,275 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 11:44:50,275 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 11:44:50,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 11:44:50,365 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;@349533fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 11:44:50,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 11:44:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 11:44:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 11:44:50,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:50,388 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:50,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:50,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1642424419, now seen corresponding path program 1 times [2024-10-11 11:44:50,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:50,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56630582] [2024-10-11 11:44:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:44:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:44:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:44:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:44:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:44:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:44:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:44:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:44:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:44:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:44:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:44:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 11:44:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:44:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:44:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 11:44:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 11:44:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 11:44:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 11:44:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:44:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 11:44:51,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:44:51,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56630582] [2024-10-11 11:44:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56630582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:44:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:44:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 11:44:51,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703546403] [2024-10-11 11:44:51,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:44:51,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 11:44:51,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:44:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 11:44:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 11:44:51,384 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 11:44:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:44:51,666 INFO L93 Difference]: Finished difference Result 205 states and 350 transitions. [2024-10-11 11:44:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 11:44:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2024-10-11 11:44:51,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:44:51,684 INFO L225 Difference]: With dead ends: 205 [2024-10-11 11:44:51,685 INFO L226 Difference]: Without dead ends: 132 [2024-10-11 11:44:51,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 11:44:51,693 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 74 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 11:44:51,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 367 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 11:44:51,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-10-11 11:44:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 99. [2024-10-11 11:44:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 11:44:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 149 transitions. [2024-10-11 11:44:51,763 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 149 transitions. Word has length 118 [2024-10-11 11:44:51,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:44:51,765 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 149 transitions. [2024-10-11 11:44:51,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-11 11:44:51,766 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 149 transitions. [2024-10-11 11:44:51,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 11:44:51,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:44:51,770 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:44:51,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 11:44:51,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:44:51,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:44:51,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1080506233, now seen corresponding path program 1 times [2024-10-11 11:44:51,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:44:51,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73812410] [2024-10-11 11:44:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:44:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:44:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 11:45:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 11:45:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 11:45:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 11:45:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 11:45:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 11:45:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 11:45:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 11:45:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 11:45:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 11:45:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 11:45:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 11:45:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 11:45:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 11:45:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 11:45:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 11:45:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 11:45:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 11:45:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 11:45:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-11 11:45:18,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 11:45:18,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73812410] [2024-10-11 11:45:18,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73812410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 11:45:18,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 11:45:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 11:45:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114886781] [2024-10-11 11:45:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 11:45:18,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 11:45:18,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 11:45:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 11:45:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-11 11:45:18,764 INFO L87 Difference]: Start difference. First operand 99 states and 149 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 11:45:20,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 11:45:20,416 INFO L93 Difference]: Finished difference Result 332 states and 478 transitions. [2024-10-11 11:45:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 11:45:20,417 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2024-10-11 11:45:20,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 11:45:20,421 INFO L225 Difference]: With dead ends: 332 [2024-10-11 11:45:20,421 INFO L226 Difference]: Without dead ends: 267 [2024-10-11 11:45:20,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-10-11 11:45:20,423 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 515 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 11:45:20,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 536 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 11:45:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-10-11 11:45:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 122. [2024-10-11 11:45:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-11 11:45:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-10-11 11:45:20,447 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 119 [2024-10-11 11:45:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 11:45:20,448 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-10-11 11:45:20,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-11 11:45:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-10-11 11:45:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 11:45:20,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 11:45:20,454 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 11:45:20,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 11:45:20,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 11:45:20,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 11:45:20,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1889852859, now seen corresponding path program 1 times [2024-10-11 11:45:20,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 11:45:20,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513627536] [2024-10-11 11:45:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 11:45:20,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 11:45:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat