./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-10.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-10.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 2130977652141f87aaeab3d55d3a6ad4866e75f526c9ed5f7fd20a11fd2ef6f1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:37:02,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:37:02,505 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:37:02,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:37:02,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:37:02,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:37:02,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:37:02,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:37:02,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:37:02,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:37:02,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:37:02,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:37:02,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:37:02,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:37:02,550 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:37:02,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:37:02,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:37:02,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:37:02,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:37:02,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:37:02,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:37:02,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:37:02,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:37:02,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:37:02,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:37:02,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:37:02,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:37:02,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:37:02,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:37:02,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:37:02,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:37:02,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:37:02,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:37:02,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:37:02,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:37:02,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:37:02,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2130977652141f87aaeab3d55d3a6ad4866e75f526c9ed5f7fd20a11fd2ef6f1 [2024-11-22 11:37:02,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 11:37:02,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 11:37:02,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 11:37:02,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 11:37:02,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 11:37:02,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-10.i [2024-11-22 11:37:04,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 11:37:04,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 11:37:04,255 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-10.i [2024-11-22 11:37:04,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bc912b8/d010df63b59241dca711fc619e60b07a/FLAGc47ca3c16 [2024-11-22 11:37:04,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bc912b8/d010df63b59241dca711fc619e60b07a [2024-11-22 11:37:04,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 11:37:04,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 11:37:04,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 11:37:04,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 11:37:04,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 11:37:04,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c8bfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04, skipping insertion in model container [2024-11-22 11:37:04,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 11:37:04,455 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-10.i[916,929] [2024-11-22 11:37:04,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:37:04,587 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 11:37:04,598 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-10.i[916,929] [2024-11-22 11:37:04,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:37:04,662 INFO L204 MainTranslator]: Completed translation [2024-11-22 11:37:04,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04 WrapperNode [2024-11-22 11:37:04,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 11:37:04,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 11:37:04,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 11:37:04,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 11:37:04,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,749 INFO L138 Inliner]: procedures = 26, calls = 78, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 482 [2024-11-22 11:37:04,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 11:37:04,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 11:37:04,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 11:37:04,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 11:37:04,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,833 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 11:37:04,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 11:37:04,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 11:37:04,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 11:37:04,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 11:37:04,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (1/1) ... [2024-11-22 11:37:04,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:37:04,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:37:04,911 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 11:37:04,913 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 11:37:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 11:37:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 11:37:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 11:37:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 11:37:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 11:37:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 11:37:05,043 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 11:37:05,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 11:37:05,746 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-22 11:37:05,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 11:37:05,765 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 11:37:05,766 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 11:37:05,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:37:05 BoogieIcfgContainer [2024-11-22 11:37:05,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 11:37:05,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 11:37:05,769 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 11:37:05,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 11:37:05,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:37:04" (1/3) ... [2024-11-22 11:37:05,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7424467e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:37:05, skipping insertion in model container [2024-11-22 11:37:05,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:37:04" (2/3) ... [2024-11-22 11:37:05,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7424467e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:37:05, skipping insertion in model container [2024-11-22 11:37:05,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:37:05" (3/3) ... [2024-11-22 11:37:05,774 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-10.i [2024-11-22 11:37:05,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 11:37:05,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 11:37:05,852 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 11:37:05,861 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;@3dd58f45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 11:37:05,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 11:37:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 133 states have (on average 1.4511278195488722) internal successors, (193), 134 states have internal predecessors, (193), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-22 11:37:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-22 11:37:05,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:05,892 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:05,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:05,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 705412045, now seen corresponding path program 1 times [2024-11-22 11:37:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:05,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498076868] [2024-11-22 11:37:05,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2024-11-22 11:37:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498076868] [2024-11-22 11:37:06,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498076868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:37:06,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819595414] [2024-11-22 11:37:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:06,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:37:06,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:37:06,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 11:37:06,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 11:37:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:06,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 11:37:06,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:37:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2024-11-22 11:37:06,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 11:37:06,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819595414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:06,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 11:37:06,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 11:37:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723379526] [2024-11-22 11:37:06,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:06,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 11:37:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:06,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 11:37:06,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:37:06,743 INFO L87 Difference]: Start difference. First operand has 201 states, 133 states have (on average 1.4511278195488722) internal successors, (193), 134 states have internal predecessors, (193), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-22 11:37:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:06,784 INFO L93 Difference]: Finished difference Result 395 states and 705 transitions. [2024-11-22 11:37:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 11:37:06,787 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) Word has length 411 [2024-11-22 11:37:06,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:06,797 INFO L225 Difference]: With dead ends: 395 [2024-11-22 11:37:06,797 INFO L226 Difference]: Without dead ends: 197 [2024-11-22 11:37:06,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:37:06,804 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:06,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:37:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-22 11:37:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-22 11:37:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 130 states have (on average 1.4307692307692308) internal successors, (186), 130 states have internal predecessors, (186), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-22 11:37:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 316 transitions. [2024-11-22 11:37:06,867 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 316 transitions. Word has length 411 [2024-11-22 11:37:06,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:06,868 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 316 transitions. [2024-11-22 11:37:06,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2024-11-22 11:37:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 316 transitions. [2024-11-22 11:37:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-22 11:37:06,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:06,882 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:06,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 11:37:07,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 11:37:07,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:07,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash -417523837, now seen corresponding path program 1 times [2024-11-22 11:37:07,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:07,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382805349] [2024-11-22 11:37:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:07,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:07,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:07,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382805349] [2024-11-22 11:37:07,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382805349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:07,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:07,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:37:07,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229755971] [2024-11-22 11:37:07,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:07,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:37:07,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:07,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:37:07,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:37:07,443 INFO L87 Difference]: Start difference. First operand 197 states and 316 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:07,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:07,538 INFO L93 Difference]: Finished difference Result 584 states and 940 transitions. [2024-11-22 11:37:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:37:07,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 411 [2024-11-22 11:37:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:07,546 INFO L225 Difference]: With dead ends: 584 [2024-11-22 11:37:07,547 INFO L226 Difference]: Without dead ends: 390 [2024-11-22 11:37:07,548 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 11:37:07,549 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 290 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:07,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 873 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:37:07,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-22 11:37:07,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2024-11-22 11:37:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 255 states have (on average 1.427450980392157) internal successors, (364), 255 states have internal predecessors, (364), 130 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-22 11:37:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 624 transitions. [2024-11-22 11:37:07,608 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 624 transitions. Word has length 411 [2024-11-22 11:37:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:07,609 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 624 transitions. [2024-11-22 11:37:07,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:07,610 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 624 transitions. [2024-11-22 11:37:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-22 11:37:07,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:07,614 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:07,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 11:37:07,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:07,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1828055617, now seen corresponding path program 1 times [2024-11-22 11:37:07,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:07,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236199206] [2024-11-22 11:37:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:07,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:08,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:08,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236199206] [2024-11-22 11:37:08,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236199206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:08,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:37:08,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416570982] [2024-11-22 11:37:08,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:08,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:37:08,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:37:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:37:08,133 INFO L87 Difference]: Start difference. First operand 388 states and 624 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:08,196 INFO L93 Difference]: Finished difference Result 1158 states and 1866 transitions. [2024-11-22 11:37:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:37:08,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 411 [2024-11-22 11:37:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:08,207 INFO L225 Difference]: With dead ends: 1158 [2024-11-22 11:37:08,208 INFO L226 Difference]: Without dead ends: 773 [2024-11-22 11:37:08,209 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 11:37:08,211 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 178 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:08,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 620 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:37:08,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-22 11:37:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 769. [2024-11-22 11:37:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 504 states have (on average 1.4246031746031746) internal successors, (718), 504 states have internal predecessors, (718), 260 states have call successors, (260), 4 states have call predecessors, (260), 4 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-11-22 11:37:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1238 transitions. [2024-11-22 11:37:08,310 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1238 transitions. Word has length 411 [2024-11-22 11:37:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:08,313 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1238 transitions. [2024-11-22 11:37:08,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1238 transitions. [2024-11-22 11:37:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-22 11:37:08,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:08,318 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:08,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 11:37:08,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:08,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1668567853, now seen corresponding path program 1 times [2024-11-22 11:37:08,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:08,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277148203] [2024-11-22 11:37:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:09,263 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:09,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:09,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277148203] [2024-11-22 11:37:09,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277148203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:09,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:09,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:37:09,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654710903] [2024-11-22 11:37:09,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:09,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:37:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:37:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:37:09,266 INFO L87 Difference]: Start difference. First operand 769 states and 1238 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:09,511 INFO L93 Difference]: Finished difference Result 1535 states and 2473 transitions. [2024-11-22 11:37:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:37:09,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 412 [2024-11-22 11:37:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:09,517 INFO L225 Difference]: With dead ends: 1535 [2024-11-22 11:37:09,517 INFO L226 Difference]: Without dead ends: 769 [2024-11-22 11:37:09,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:37:09,519 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 307 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:09,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 478 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:37:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-22 11:37:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2024-11-22 11:37:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 504 states have (on average 1.4166666666666667) internal successors, (714), 504 states have internal predecessors, (714), 260 states have call successors, (260), 4 states have call predecessors, (260), 4 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-11-22 11:37:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1234 transitions. [2024-11-22 11:37:09,581 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1234 transitions. Word has length 412 [2024-11-22 11:37:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:09,581 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1234 transitions. [2024-11-22 11:37:09,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1234 transitions. [2024-11-22 11:37:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-22 11:37:09,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:09,586 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:09,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 11:37:09,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:09,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -703171409, now seen corresponding path program 1 times [2024-11-22 11:37:09,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:09,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892023063] [2024-11-22 11:37:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:11,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:11,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892023063] [2024-11-22 11:37:11,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892023063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:11,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:11,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:37:11,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601125436] [2024-11-22 11:37:11,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:11,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:37:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:11,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:37:11,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:37:11,165 INFO L87 Difference]: Start difference. First operand 769 states and 1234 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:11,533 INFO L93 Difference]: Finished difference Result 1563 states and 2500 transitions. [2024-11-22 11:37:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:37:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 412 [2024-11-22 11:37:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:11,544 INFO L225 Difference]: With dead ends: 1563 [2024-11-22 11:37:11,544 INFO L226 Difference]: Without dead ends: 797 [2024-11-22 11:37:11,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:37:11,548 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 101 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:11,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 744 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:37:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-22 11:37:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 794. [2024-11-22 11:37:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 519 states have (on average 1.4046242774566473) internal successors, (729), 520 states have internal predecessors, (729), 268 states have call successors, (268), 6 states have call predecessors, (268), 6 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2024-11-22 11:37:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1265 transitions. [2024-11-22 11:37:11,654 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1265 transitions. Word has length 412 [2024-11-22 11:37:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:11,655 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1265 transitions. [2024-11-22 11:37:11,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1265 transitions. [2024-11-22 11:37:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-22 11:37:11,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:11,660 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:11,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 11:37:11,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:11,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:11,661 INFO L85 PathProgramCache]: Analyzing trace with hash 973862631, now seen corresponding path program 1 times [2024-11-22 11:37:11,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:11,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383783329] [2024-11-22 11:37:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:11,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:12,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:12,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383783329] [2024-11-22 11:37:12,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383783329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:12,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:12,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:37:12,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953495466] [2024-11-22 11:37:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:12,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:37:12,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:37:12,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:37:12,047 INFO L87 Difference]: Start difference. First operand 794 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:12,441 INFO L93 Difference]: Finished difference Result 2029 states and 3242 transitions. [2024-11-22 11:37:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:37:12,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 413 [2024-11-22 11:37:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:12,450 INFO L225 Difference]: With dead ends: 2029 [2024-11-22 11:37:12,450 INFO L226 Difference]: Without dead ends: 1251 [2024-11-22 11:37:12,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 11:37:12,453 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 308 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:12,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1556 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:37:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-11-22 11:37:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 802. [2024-11-22 11:37:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 527 states have (on average 1.4022770398481974) internal successors, (739), 528 states have internal predecessors, (739), 268 states have call successors, (268), 6 states have call predecessors, (268), 6 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2024-11-22 11:37:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1275 transitions. [2024-11-22 11:37:12,544 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1275 transitions. Word has length 413 [2024-11-22 11:37:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:12,545 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1275 transitions. [2024-11-22 11:37:12,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1275 transitions. [2024-11-22 11:37:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-22 11:37:12,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:12,549 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:12,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 11:37:12,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:12,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1035902245, now seen corresponding path program 1 times [2024-11-22 11:37:12,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:12,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167090988] [2024-11-22 11:37:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:12,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167090988] [2024-11-22 11:37:12,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167090988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:12,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:12,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:37:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860098864] [2024-11-22 11:37:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:12,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:37:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:12,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:37:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:37:12,869 INFO L87 Difference]: Start difference. First operand 802 states and 1275 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:12,960 INFO L93 Difference]: Finished difference Result 1983 states and 3152 transitions. [2024-11-22 11:37:12,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:37:12,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 413 [2024-11-22 11:37:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:12,969 INFO L225 Difference]: With dead ends: 1983 [2024-11-22 11:37:12,969 INFO L226 Difference]: Without dead ends: 1197 [2024-11-22 11:37:12,972 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 11:37:12,973 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 308 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:12,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:37:12,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-22 11:37:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1195. [2024-11-22 11:37:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 786 states have (on average 1.3994910941475827) internal successors, (1100), 787 states have internal predecessors, (1100), 398 states have call successors, (398), 10 states have call predecessors, (398), 10 states have return successors, (398), 397 states have call predecessors, (398), 398 states have call successors, (398) [2024-11-22 11:37:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1896 transitions. [2024-11-22 11:37:13,104 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1896 transitions. Word has length 413 [2024-11-22 11:37:13,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:13,105 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1896 transitions. [2024-11-22 11:37:13,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1896 transitions. [2024-11-22 11:37:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-22 11:37:13,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:13,109 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:13,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 11:37:13,109 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:13,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -55968481, now seen corresponding path program 1 times [2024-11-22 11:37:13,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:13,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943892896] [2024-11-22 11:37:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:13,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:13,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943892896] [2024-11-22 11:37:13,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943892896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:13,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:37:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804189830] [2024-11-22 11:37:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:13,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:37:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:37:13,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:37:13,582 INFO L87 Difference]: Start difference. First operand 1195 states and 1896 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:14,062 INFO L93 Difference]: Finished difference Result 4198 states and 6622 transitions. [2024-11-22 11:37:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:37:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 413 [2024-11-22 11:37:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:14,078 INFO L225 Difference]: With dead ends: 4198 [2024-11-22 11:37:14,078 INFO L226 Difference]: Without dead ends: 3019 [2024-11-22 11:37:14,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 11:37:14,084 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 605 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:14,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 915 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:37:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2024-11-22 11:37:14,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 2213. [2024-11-22 11:37:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1607 states have (on average 1.4287492221530802) internal successors, (2296), 1615 states have internal predecessors, (2296), 583 states have call successors, (583), 22 states have call predecessors, (583), 22 states have return successors, (583), 575 states have call predecessors, (583), 583 states have call successors, (583) [2024-11-22 11:37:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3462 transitions. [2024-11-22 11:37:14,444 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3462 transitions. Word has length 413 [2024-11-22 11:37:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:14,444 INFO L471 AbstractCegarLoop]: Abstraction has 2213 states and 3462 transitions. [2024-11-22 11:37:14,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3462 transitions. [2024-11-22 11:37:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-22 11:37:14,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:14,450 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:14,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 11:37:14,450 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:14,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash 91105638, now seen corresponding path program 1 times [2024-11-22 11:37:14,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:14,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050674657] [2024-11-22 11:37:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:14,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:37:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-11-22 11:37:17,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:37:17,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050674657] [2024-11-22 11:37:17,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050674657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:37:17,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:37:17,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 11:37:17,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147349413] [2024-11-22 11:37:17,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:37:17,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 11:37:17,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:37:17,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 11:37:17,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 11:37:17,590 INFO L87 Difference]: Start difference. First operand 2213 states and 3462 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:37:18,862 INFO L93 Difference]: Finished difference Result 6752 states and 10429 transitions. [2024-11-22 11:37:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 11:37:18,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 413 [2024-11-22 11:37:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:37:18,881 INFO L225 Difference]: With dead ends: 6752 [2024-11-22 11:37:18,882 INFO L226 Difference]: Without dead ends: 4555 [2024-11-22 11:37:18,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-22 11:37:18,891 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 555 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 11:37:18,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 2078 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 11:37:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4555 states. [2024-11-22 11:37:19,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 2908. [2024-11-22 11:37:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2266 states have (on average 1.4536628420123565) internal successors, (3294), 2278 states have internal predecessors, (3294), 615 states have call successors, (615), 26 states have call predecessors, (615), 26 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2024-11-22 11:37:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4524 transitions. [2024-11-22 11:37:19,115 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4524 transitions. Word has length 413 [2024-11-22 11:37:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:37:19,116 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 4524 transitions. [2024-11-22 11:37:19,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2024-11-22 11:37:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4524 transitions. [2024-11-22 11:37:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-22 11:37:19,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:37:19,121 INFO L215 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:19,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 11:37:19,121 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:37:19,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:37:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1754261528, now seen corresponding path program 1 times [2024-11-22 11:37:19,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:37:19,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578612309] [2024-11-22 11:37:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:37:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:37:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat