./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.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 c469b75cc3acec0afb4777ccbc446a0a894bfe2960322167d3fdb024eb8caf56 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:31:05,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:31:05,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:31:05,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:31:05,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:31:05,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:31:05,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:31:05,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:31:05,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:31:05,176 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:31:05,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:31:05,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:31:05,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:31:05,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:31:05,178 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:31:05,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:31:05,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:31:05,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:31:05,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:31:05,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:31:05,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:31:05,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:31:05,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:31:05,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:31:05,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:31:05,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:31:05,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:31:05,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:31:05,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:31:05,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:31:05,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:31:05,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:31:05,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:31:05,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:31:05,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:31:05,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:31:05,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:31:05,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:31:05,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:31:05,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:31:05,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:31:05,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:31:05,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c469b75cc3acec0afb4777ccbc446a0a894bfe2960322167d3fdb024eb8caf56 [2024-10-14 11:31:05,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:31:05,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:31:05,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:31:05,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:31:05,493 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:31:05,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-14 11:31:06,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:31:07,181 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:31:07,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-14 11:31:07,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5cb6dea/406dae21b6ed48209077407fedfb9f9f/FLAGd819f65fd [2024-10-14 11:31:07,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5cb6dea/406dae21b6ed48209077407fedfb9f9f [2024-10-14 11:31:07,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:31:07,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:31:07,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:31:07,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:31:07,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:31:07,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e40c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07, skipping insertion in model container [2024-10-14 11:31:07,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:31:07,424 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i[916,929] [2024-10-14 11:31:07,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:31:07,527 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:31:07,538 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-92.i[916,929] [2024-10-14 11:31:07,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:31:07,604 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:31:07,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07 WrapperNode [2024-10-14 11:31:07,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:31:07,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:31:07,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:31:07,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:31:07,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,677 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 310 [2024-10-14 11:31:07,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:31:07,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:31:07,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:31:07,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:31:07,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,735 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:31:07,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:31:07,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:31:07,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:31:07,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:31:07,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (1/1) ... [2024-10-14 11:31:07,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:31:07,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:31:07,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:31:07,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:31:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:31:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:31:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:31:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:31:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:31:07,969 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:31:07,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:31:08,583 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-14 11:31:08,583 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:31:08,619 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:31:08,619 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:31:08,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:31:08 BoogieIcfgContainer [2024-10-14 11:31:08,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:31:08,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:31:08,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:31:08,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:31:08,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:31:07" (1/3) ... [2024-10-14 11:31:08,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612a0574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:31:08, skipping insertion in model container [2024-10-14 11:31:08,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:07" (2/3) ... [2024-10-14 11:31:08,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612a0574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:31:08, skipping insertion in model container [2024-10-14 11:31:08,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:31:08" (3/3) ... [2024-10-14 11:31:08,631 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-92.i [2024-10-14 11:31:08,648 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:31:08,648 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:31:08,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:31:08,717 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;@4abbc5c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:31:08,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:31:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 96 states have (on average 1.53125) internal successors, (147), 97 states have internal predecessors, (147), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-14 11:31:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:31:08,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:08,736 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:08,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:08,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:08,742 INFO L85 PathProgramCache]: Analyzing trace with hash 853163340, now seen corresponding path program 1 times [2024-10-14 11:31:08,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:08,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716937196] [2024-10-14 11:31:08,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:09,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:09,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716937196] [2024-10-14 11:31:09,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716937196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:09,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:09,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:31:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579590908] [2024-10-14 11:31:09,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:09,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:31:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:31:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:31:09,430 INFO L87 Difference]: Start difference. First operand has 121 states, 96 states have (on average 1.53125) internal successors, (147), 97 states have internal predecessors, (147), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-14 11:31:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:09,470 INFO L93 Difference]: Finished difference Result 239 states and 402 transitions. [2024-10-14 11:31:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:31:09,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2024-10-14 11:31:09,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:09,480 INFO L225 Difference]: With dead ends: 239 [2024-10-14 11:31:09,480 INFO L226 Difference]: Without dead ends: 119 [2024-10-14 11:31:09,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:31:09,487 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:09,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:31:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-14 11:31:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-14 11:31:09,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 95 states have internal predecessors, (142), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-14 11:31:09,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 186 transitions. [2024-10-14 11:31:09,541 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 186 transitions. Word has length 155 [2024-10-14 11:31:09,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:09,543 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 186 transitions. [2024-10-14 11:31:09,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-14 11:31:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 186 transitions. [2024-10-14 11:31:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 11:31:09,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:09,551 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:09,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:31:09,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:09,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:09,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1242582584, now seen corresponding path program 1 times [2024-10-14 11:31:09,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:09,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560238852] [2024-10-14 11:31:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:09,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:10,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560238852] [2024-10-14 11:31:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560238852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:10,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:31:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939527238] [2024-10-14 11:31:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:10,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:31:10,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:10,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:31:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:31:10,238 INFO L87 Difference]: Start difference. First operand 119 states and 186 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:10,368 INFO L93 Difference]: Finished difference Result 355 states and 556 transitions. [2024-10-14 11:31:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:31:10,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-10-14 11:31:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:10,373 INFO L225 Difference]: With dead ends: 355 [2024-10-14 11:31:10,373 INFO L226 Difference]: Without dead ends: 237 [2024-10-14 11:31:10,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:31:10,378 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 134 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:10,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 416 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:31:10,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-14 11:31:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2024-10-14 11:31:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-14 11:31:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 368 transitions. [2024-10-14 11:31:10,430 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 368 transitions. Word has length 155 [2024-10-14 11:31:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:10,431 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 368 transitions. [2024-10-14 11:31:10,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 368 transitions. [2024-10-14 11:31:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:31:10,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:10,436 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:10,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:31:10,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:10,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1165276112, now seen corresponding path program 1 times [2024-10-14 11:31:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:10,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481464075] [2024-10-14 11:31:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:10,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:11,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:11,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481464075] [2024-10-14 11:31:11,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481464075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:11,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:11,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:31:11,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519912961] [2024-10-14 11:31:11,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:11,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:31:11,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:31:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:31:11,040 INFO L87 Difference]: Start difference. First operand 235 states and 368 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:11,544 INFO L93 Difference]: Finished difference Result 1105 states and 1715 transitions. [2024-10-14 11:31:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:31:11,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-14 11:31:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:11,554 INFO L225 Difference]: With dead ends: 1105 [2024-10-14 11:31:11,554 INFO L226 Difference]: Without dead ends: 871 [2024-10-14 11:31:11,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:31:11,557 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 562 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:11,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 800 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:31:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-10-14 11:31:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 821. [2024-10-14 11:31:11,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 686 states have (on average 1.4868804664723032) internal successors, (1020), 688 states have internal predecessors, (1020), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-14 11:31:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1276 transitions. [2024-10-14 11:31:11,646 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1276 transitions. Word has length 156 [2024-10-14 11:31:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:11,647 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1276 transitions. [2024-10-14 11:31:11,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1276 transitions. [2024-10-14 11:31:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:31:11,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:11,650 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:11,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:31:11,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:11,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1324252850, now seen corresponding path program 1 times [2024-10-14 11:31:11,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:11,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436600544] [2024-10-14 11:31:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:12,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436600544] [2024-10-14 11:31:12,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436600544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:12,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:12,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:31:12,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143423302] [2024-10-14 11:31:12,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:12,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:31:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:31:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:31:12,332 INFO L87 Difference]: Start difference. First operand 821 states and 1276 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:13,403 INFO L93 Difference]: Finished difference Result 1858 states and 2873 transitions. [2024-10-14 11:31:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:31:13,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-14 11:31:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:13,413 INFO L225 Difference]: With dead ends: 1858 [2024-10-14 11:31:13,413 INFO L226 Difference]: Without dead ends: 1447 [2024-10-14 11:31:13,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:31:13,416 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1301 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:13,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 983 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 11:31:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-10-14 11:31:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 927. [2024-10-14 11:31:13,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 792 states have (on average 1.5025252525252526) internal successors, (1190), 794 states have internal predecessors, (1190), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-14 11:31:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1446 transitions. [2024-10-14 11:31:13,495 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1446 transitions. Word has length 156 [2024-10-14 11:31:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:13,496 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1446 transitions. [2024-10-14 11:31:13,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1446 transitions. [2024-10-14 11:31:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:31:13,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:13,498 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:13,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:31:13,499 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:13,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:13,499 INFO L85 PathProgramCache]: Analyzing trace with hash -505961346, now seen corresponding path program 1 times [2024-10-14 11:31:13,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:13,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454570037] [2024-10-14 11:31:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:13,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:43,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:43,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454570037] [2024-10-14 11:31:43,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454570037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:43,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:43,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 11:31:43,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880515262] [2024-10-14 11:31:43,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:43,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:31:43,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:31:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:31:43,915 INFO L87 Difference]: Start difference. First operand 927 states and 1446 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:48,966 INFO L93 Difference]: Finished difference Result 3710 states and 5729 transitions. [2024-10-14 11:31:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 11:31:48,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-14 11:31:48,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:48,980 INFO L225 Difference]: With dead ends: 3710 [2024-10-14 11:31:48,981 INFO L226 Difference]: Without dead ends: 2784 [2024-10-14 11:31:49,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:31:49,006 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 656 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:49,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 554 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-14 11:31:49,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-10-14 11:31:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1274. [2024-10-14 11:31:49,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1139 states have (on average 1.5320456540825285) internal successors, (1745), 1141 states have internal predecessors, (1745), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-14 11:31:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2001 transitions. [2024-10-14 11:31:49,122 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2001 transitions. Word has length 156 [2024-10-14 11:31:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:49,123 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 2001 transitions. [2024-10-14 11:31:49,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2001 transitions. [2024-10-14 11:31:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:31:49,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:49,127 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:49,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:31:49,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:49,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash -83259520, now seen corresponding path program 1 times [2024-10-14 11:31:49,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111970488] [2024-10-14 11:31:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:31:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:31:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:31:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:31:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:31:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:31:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 11:31:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:31:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 11:31:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 11:31:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 11:31:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 11:31:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 11:31:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 11:31:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 11:31:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 11:31:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 11:31:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:31:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:31:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 11:31:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:31:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 11:31:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:31:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 11:31:53,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:31:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111970488] [2024-10-14 11:31:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111970488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:31:53,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:31:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 11:31:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988185132] [2024-10-14 11:31:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:31:53,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:31:53,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:31:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:31:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:31:53,089 INFO L87 Difference]: Start difference. First operand 1274 states and 2001 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:56,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:31:56,890 INFO L93 Difference]: Finished difference Result 3731 states and 5802 transitions. [2024-10-14 11:31:56,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 11:31:56,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-10-14 11:31:56,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:31:56,902 INFO L225 Difference]: With dead ends: 3731 [2024-10-14 11:31:56,903 INFO L226 Difference]: Without dead ends: 2458 [2024-10-14 11:31:56,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:31:56,908 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 390 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 11:31:56,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 770 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 11:31:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2024-10-14 11:31:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1274. [2024-10-14 11:31:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1139 states have (on average 1.5320456540825285) internal successors, (1745), 1141 states have internal predecessors, (1745), 128 states have call successors, (128), 6 states have call predecessors, (128), 6 states have return successors, (128), 126 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-14 11:31:56,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2001 transitions. [2024-10-14 11:31:56,985 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2001 transitions. Word has length 156 [2024-10-14 11:31:56,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:31:56,985 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 2001 transitions. [2024-10-14 11:31:56,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-14 11:31:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2001 transitions. [2024-10-14 11:31:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 11:31:56,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:31:56,988 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:31:56,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:31:56,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:31:56,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:31:56,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2060264830, now seen corresponding path program 1 times [2024-10-14 11:31:56,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:31:56,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739937700] [2024-10-14 11:31:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:31:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:31:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat