./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.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 130cb710857a69d51693f7c988d1089df72445a1bc96f77f0c94bfd1e5cc2bd5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:43:48,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:43:48,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:43:48,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:43:48,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:43:48,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:43:48,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:43:48,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:43:48,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:43:48,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:43:48,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:43:48,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:43:48,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:43:48,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:43:48,320 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:43:48,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:43:48,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:43:48,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:43:48,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:43:48,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:43:48,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:43:48,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:43:48,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:43:48,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:43:48,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:43:48,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:43:48,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:43:48,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:43:48,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:43:48,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:43:48,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:43:48,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:43:48,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:43:48,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:43:48,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:43:48,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:43:48,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:43:48,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 130cb710857a69d51693f7c988d1089df72445a1bc96f77f0c94bfd1e5cc2bd5 [2024-11-22 11:43:48,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 11:43:48,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 11:43:48,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 11:43:48,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 11:43:48,568 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 11:43:48,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-22 11:43:49,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 11:43:50,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 11:43:50,073 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i [2024-11-22 11:43:50,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd0cd6b2/722794de5554423094051a58bcff1d8c/FLAG1b3fce9ab [2024-11-22 11:43:50,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd0cd6b2/722794de5554423094051a58bcff1d8c [2024-11-22 11:43:50,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 11:43:50,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 11:43:50,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 11:43:50,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 11:43:50,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 11:43:50,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bad1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50, skipping insertion in model container [2024-11-22 11:43:50,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 11:43:50,276 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i[915,928] [2024-11-22 11:43:50,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:43:50,511 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 11:43:50,521 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-7.i[915,928] [2024-11-22 11:43:50,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:43:50,606 INFO L204 MainTranslator]: Completed translation [2024-11-22 11:43:50,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50 WrapperNode [2024-11-22 11:43:50,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 11:43:50,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 11:43:50,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 11:43:50,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 11:43:50,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,682 INFO L138 Inliner]: procedures = 26, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 510 [2024-11-22 11:43:50,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 11:43:50,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 11:43:50,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 11:43:50,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 11:43:50,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,745 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 11:43:50,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 11:43:50,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 11:43:50,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 11:43:50,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 11:43:50,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (1/1) ... [2024-11-22 11:43:50,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:43:50,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:43:50,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 11:43:50,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 11:43:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 11:43:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 11:43:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 11:43:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 11:43:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 11:43:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 11:43:50,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 11:43:50,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 11:43:51,681 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-22 11:43:51,682 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 11:43:51,697 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 11:43:51,697 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 11:43:51,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:43:51 BoogieIcfgContainer [2024-11-22 11:43:51,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 11:43:51,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 11:43:51,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 11:43:51,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 11:43:51,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:43:50" (1/3) ... [2024-11-22 11:43:51,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c624dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:43:51, skipping insertion in model container [2024-11-22 11:43:51,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:43:50" (2/3) ... [2024-11-22 11:43:51,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c624dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:43:51, skipping insertion in model container [2024-11-22 11:43:51,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:43:51" (3/3) ... [2024-11-22 11:43:51,705 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-7.i [2024-11-22 11:43:51,717 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 11:43:51,717 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 11:43:51,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 11:43:51,789 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;@44ce09bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 11:43:51,789 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 11:43:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 147 states have (on average 1.5034013605442176) internal successors, (221), 148 states have internal predecessors, (221), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 11:43:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:51,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:51,819 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:51,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:51,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:51,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1192454832, now seen corresponding path program 1 times [2024-11-22 11:43:51,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:51,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085991678] [2024-11-22 11:43:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:52,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:52,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:52,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085991678] [2024-11-22 11:43:52,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085991678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:52,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:52,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:43:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272916797] [2024-11-22 11:43:52,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:52,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:43:52,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:52,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:43:52,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:43:52,677 INFO L87 Difference]: Start difference. First operand has 208 states, 147 states have (on average 1.5034013605442176) internal successors, (221), 148 states have internal predecessors, (221), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:52,889 INFO L93 Difference]: Finished difference Result 511 states and 895 transitions. [2024-11-22 11:43:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:43:52,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:52,903 INFO L225 Difference]: With dead ends: 511 [2024-11-22 11:43:52,903 INFO L226 Difference]: Without dead ends: 306 [2024-11-22 11:43:52,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:43:52,912 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 162 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:52,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 867 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:43:52,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-22 11:43:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2024-11-22 11:43:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 240 states have (on average 1.5166666666666666) internal successors, (364), 241 states have internal predecessors, (364), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 11:43:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 484 transitions. [2024-11-22 11:43:52,986 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 484 transitions. Word has length 367 [2024-11-22 11:43:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:52,987 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 484 transitions. [2024-11-22 11:43:52,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 484 transitions. [2024-11-22 11:43:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:52,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:52,992 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:52,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 11:43:52,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:52,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1051528466, now seen corresponding path program 1 times [2024-11-22 11:43:52,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:52,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410620045] [2024-11-22 11:43:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:52,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:53,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:53,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410620045] [2024-11-22 11:43:53,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410620045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:53,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:53,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:43:53,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239312484] [2024-11-22 11:43:53,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:53,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:43:53,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:43:53,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:53,224 INFO L87 Difference]: Start difference. First operand 303 states and 484 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:53,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:53,306 INFO L93 Difference]: Finished difference Result 899 states and 1438 transitions. [2024-11-22 11:43:53,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:43:53,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:53,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:53,315 INFO L225 Difference]: With dead ends: 899 [2024-11-22 11:43:53,316 INFO L226 Difference]: Without dead ends: 599 [2024-11-22 11:43:53,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:53,319 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 309 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:53,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 810 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:43:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-22 11:43:53,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2024-11-22 11:43:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 472 states have (on average 1.5) internal successors, (708), 474 states have internal predecessors, (708), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-22 11:43:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 948 transitions. [2024-11-22 11:43:53,386 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 948 transitions. Word has length 367 [2024-11-22 11:43:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:53,388 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 948 transitions. [2024-11-22 11:43:53,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 948 transitions. [2024-11-22 11:43:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:53,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:53,394 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:53,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 11:43:53,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:53,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash 56600528, now seen corresponding path program 1 times [2024-11-22 11:43:53,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:53,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658145613] [2024-11-22 11:43:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:53,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:53,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:53,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658145613] [2024-11-22 11:43:53,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658145613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:53,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:53,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:43:53,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993154544] [2024-11-22 11:43:53,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:53,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:43:53,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:53,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:43:53,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:53,582 INFO L87 Difference]: Start difference. First operand 597 states and 948 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:53,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:53,652 INFO L93 Difference]: Finished difference Result 1675 states and 2652 transitions. [2024-11-22 11:43:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:43:53,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:53,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:53,662 INFO L225 Difference]: With dead ends: 1675 [2024-11-22 11:43:53,662 INFO L226 Difference]: Without dead ends: 1081 [2024-11-22 11:43:53,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:53,667 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 284 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:53,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 680 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:43:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-22 11:43:53,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 659. [2024-11-22 11:43:53,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 534 states have (on average 1.5280898876404494) internal successors, (816), 536 states have internal predecessors, (816), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-22 11:43:53,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1056 transitions. [2024-11-22 11:43:53,734 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1056 transitions. Word has length 367 [2024-11-22 11:43:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:53,739 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1056 transitions. [2024-11-22 11:43:53,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1056 transitions. [2024-11-22 11:43:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:53,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:53,744 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:53,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 11:43:53,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:53,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:53,745 INFO L85 PathProgramCache]: Analyzing trace with hash -77412978, now seen corresponding path program 1 times [2024-11-22 11:43:53,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703271700] [2024-11-22 11:43:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:53,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:54,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:54,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703271700] [2024-11-22 11:43:54,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703271700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:54,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:43:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572132237] [2024-11-22 11:43:54,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:54,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:43:54,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:54,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:43:54,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:43:54,410 INFO L87 Difference]: Start difference. First operand 659 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:54,581 INFO L93 Difference]: Finished difference Result 1838 states and 2906 transitions. [2024-11-22 11:43:54,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:43:54,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:54,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:54,588 INFO L225 Difference]: With dead ends: 1838 [2024-11-22 11:43:54,588 INFO L226 Difference]: Without dead ends: 1182 [2024-11-22 11:43:54,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:43:54,590 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 330 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:54,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1016 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:43:54,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2024-11-22 11:43:54,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 922. [2024-11-22 11:43:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 760 states have (on average 1.5302631578947368) internal successors, (1163), 765 states have internal predecessors, (1163), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 149 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 11:43:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1471 transitions. [2024-11-22 11:43:54,651 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1471 transitions. Word has length 367 [2024-11-22 11:43:54,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:54,651 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1471 transitions. [2024-11-22 11:43:54,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1471 transitions. [2024-11-22 11:43:54,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:54,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:54,657 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:54,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 11:43:54,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:54,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1882851312, now seen corresponding path program 1 times [2024-11-22 11:43:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:54,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895141149] [2024-11-22 11:43:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:54,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:54,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:54,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895141149] [2024-11-22 11:43:54,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895141149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:54,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:54,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:43:54,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122340562] [2024-11-22 11:43:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:54,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:43:54,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:54,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:43:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:54,964 INFO L87 Difference]: Start difference. First operand 922 states and 1471 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:55,039 INFO L93 Difference]: Finished difference Result 2744 states and 4389 transitions. [2024-11-22 11:43:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:43:55,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:55,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:55,047 INFO L225 Difference]: With dead ends: 2744 [2024-11-22 11:43:55,048 INFO L226 Difference]: Without dead ends: 1833 [2024-11-22 11:43:55,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:55,051 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 205 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:55,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 681 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:43:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-22 11:43:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1831. [2024-11-22 11:43:55,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1511 states have (on average 1.5215089344804764) internal successors, (2299), 1520 states have internal predecessors, (2299), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-22 11:43:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2911 transitions. [2024-11-22 11:43:55,164 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2911 transitions. Word has length 367 [2024-11-22 11:43:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:55,164 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2911 transitions. [2024-11-22 11:43:55,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:55,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2911 transitions. [2024-11-22 11:43:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:55,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:55,168 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:55,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 11:43:55,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:55,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:55,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2101706030, now seen corresponding path program 1 times [2024-11-22 11:43:55,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:55,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30705045] [2024-11-22 11:43:55,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:55,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:56,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:56,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30705045] [2024-11-22 11:43:56,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30705045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:56,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:56,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:43:56,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381614258] [2024-11-22 11:43:56,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:56,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:43:56,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:43:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:43:56,408 INFO L87 Difference]: Start difference. First operand 1831 states and 2911 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:56,790 INFO L93 Difference]: Finished difference Result 4761 states and 7535 transitions. [2024-11-22 11:43:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:43:56,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:56,803 INFO L225 Difference]: With dead ends: 4761 [2024-11-22 11:43:56,803 INFO L226 Difference]: Without dead ends: 2941 [2024-11-22 11:43:56,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:43:56,810 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 562 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:56,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1170 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:43:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2024-11-22 11:43:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2027. [2024-11-22 11:43:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1707 states have (on average 1.5424721734036322) internal successors, (2633), 1716 states have internal predecessors, (2633), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-22 11:43:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3245 transitions. [2024-11-22 11:43:56,951 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3245 transitions. Word has length 367 [2024-11-22 11:43:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:56,952 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3245 transitions. [2024-11-22 11:43:56,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3245 transitions. [2024-11-22 11:43:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:56,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:56,958 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:56,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 11:43:56,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:56,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash 950463448, now seen corresponding path program 1 times [2024-11-22 11:43:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:56,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360090271] [2024-11-22 11:43:56,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:43:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-22 11:43:57,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:43:57,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360090271] [2024-11-22 11:43:57,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360090271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:43:57,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:43:57,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:43:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147754180] [2024-11-22 11:43:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:43:57,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:43:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:43:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:43:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:57,269 INFO L87 Difference]: Start difference. First operand 2027 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:57,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:43:57,390 INFO L93 Difference]: Finished difference Result 4135 states and 6636 transitions. [2024-11-22 11:43:57,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:43:57,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 367 [2024-11-22 11:43:57,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:43:57,400 INFO L225 Difference]: With dead ends: 4135 [2024-11-22 11:43:57,400 INFO L226 Difference]: Without dead ends: 2119 [2024-11-22 11:43:57,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:43:57,404 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 59 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:43:57,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 588 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:43:57,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2024-11-22 11:43:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2027. [2024-11-22 11:43:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1707 states have (on average 1.536613942589338) internal successors, (2623), 1716 states have internal predecessors, (2623), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 297 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-22 11:43:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3235 transitions. [2024-11-22 11:43:57,500 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3235 transitions. Word has length 367 [2024-11-22 11:43:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:43:57,500 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3235 transitions. [2024-11-22 11:43:57,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2024-11-22 11:43:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3235 transitions. [2024-11-22 11:43:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-22 11:43:57,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:43:57,505 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:43:57,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 11:43:57,506 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:43:57,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:43:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash 816449942, now seen corresponding path program 1 times [2024-11-22 11:43:57,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:43:57,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348429509] [2024-11-22 11:43:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:43:57,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:43:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat