./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_operatoramount_amount250_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_operatoramount_amount250_file-0.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 bc8ba5687f86ca6bc535ef8887bd15483610a3c920778b0e5f157ae799e621ff --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 10:21:34,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 10:21:34,877 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 10:21:34,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 10:21:34,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 10:21:34,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 10:21:34,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 10:21:34,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 10:21:34,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 10:21:34,925 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 10:21:34,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 10:21:34,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 10:21:34,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 10:21:34,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 10:21:34,928 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 10:21:34,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 10:21:34,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 10:21:34,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 10:21:34,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 10:21:34,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 10:21:34,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 10:21:34,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 10:21:34,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 10:21:34,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 10:21:34,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 10:21:34,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 10:21:34,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 10:21:34,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 10:21:34,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 10:21:34,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 10:21:34,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 10:21:34,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 10:21:34,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:21:34,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 10:21:34,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 10:21:34,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 10:21:34,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 10:21:34,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 10:21:34,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 10:21:34,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 10:21:34,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 10:21:34,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 10:21:34,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc8ba5687f86ca6bc535ef8887bd15483610a3c920778b0e5f157ae799e621ff [2024-10-24 10:21:35,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 10:21:35,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 10:21:35,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 10:21:35,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 10:21:35,272 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 10:21:35,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-0.i [2024-10-24 10:21:36,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 10:21:36,928 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 10:21:36,929 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-0.i [2024-10-24 10:21:36,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd56c47b0/3bfeacbe9d414edeaa9e32880dc93ba9/FLAG40bb1d0c2 [2024-10-24 10:21:37,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd56c47b0/3bfeacbe9d414edeaa9e32880dc93ba9 [2024-10-24 10:21:37,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 10:21:37,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 10:21:37,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 10:21:37,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 10:21:37,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 10:21:37,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:37,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adc52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37, skipping insertion in model container [2024-10-24 10:21:37,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:37,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 10:21:37,493 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_operatoramount_amount250_file-0.i[915,928] [2024-10-24 10:21:37,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:21:37,693 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 10:21:37,719 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_operatoramount_amount250_file-0.i[915,928] [2024-10-24 10:21:37,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 10:21:37,844 INFO L204 MainTranslator]: Completed translation [2024-10-24 10:21:37,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37 WrapperNode [2024-10-24 10:21:37,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 10:21:37,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 10:21:37,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 10:21:37,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 10:21:37,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:37,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:37,970 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 347 [2024-10-24 10:21:37,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 10:21:37,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 10:21:37,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 10:21:37,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 10:21:37,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:37,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,057 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]. [2024-10-24 10:21:38,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 10:21:38,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 10:21:38,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 10:21:38,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 10:21:38,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (1/1) ... [2024-10-24 10:21:38,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 10:21:38,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:21:38,159 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) [2024-10-24 10:21:38,164 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 [2024-10-24 10:21:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 10:21:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 10:21:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 10:21:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 10:21:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 10:21:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 10:21:38,325 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 10:21:38,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 10:21:39,403 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-24 10:21:39,403 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 10:21:39,448 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 10:21:39,449 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 10:21:39,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:21:39 BoogieIcfgContainer [2024-10-24 10:21:39,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 10:21:39,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 10:21:39,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 10:21:39,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 10:21:39,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:21:37" (1/3) ... [2024-10-24 10:21:39,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcd63df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:21:39, skipping insertion in model container [2024-10-24 10:21:39,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:37" (2/3) ... [2024-10-24 10:21:39,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcd63df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:21:39, skipping insertion in model container [2024-10-24 10:21:39,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:21:39" (3/3) ... [2024-10-24 10:21:39,462 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-0.i [2024-10-24 10:21:39,480 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 10:21:39,480 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 10:21:39,549 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 10:21:39,558 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;@4e34f83d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 10:21:39,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 10:21:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 107 states have (on average 1.5700934579439252) internal successors, (168), 108 states have internal predecessors, (168), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 10:21:39,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 10:21:39,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:39,587 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:39,588 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:39,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash -188798124, now seen corresponding path program 1 times [2024-10-24 10:21:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:39,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038410182] [2024-10-24 10:21:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:21:40,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038410182] [2024-10-24 10:21:40,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038410182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:21:40,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:21:40,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 10:21:40,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19784022] [2024-10-24 10:21:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:21:40,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 10:21:40,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:40,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 10:21:40,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 10:21:40,320 INFO L87 Difference]: Start difference. First operand has 142 states, 107 states have (on average 1.5700934579439252) internal successors, (168), 108 states have internal predecessors, (168), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-24 10:21:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:40,383 INFO L93 Difference]: Finished difference Result 281 states and 494 transitions. [2024-10-24 10:21:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 10:21:40,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 226 [2024-10-24 10:21:40,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:40,398 INFO L225 Difference]: With dead ends: 281 [2024-10-24 10:21:40,399 INFO L226 Difference]: Without dead ends: 140 [2024-10-24 10:21:40,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 10:21:40,407 INFO L432 NwaCegarLoop]: 224 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, 224 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 [2024-10-24 10:21:40,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 10:21:40,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-24 10:21:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-24 10:21:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 106 states have (on average 1.5377358490566038) internal successors, (163), 106 states have internal predecessors, (163), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 10:21:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 227 transitions. [2024-10-24 10:21:40,482 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 227 transitions. Word has length 226 [2024-10-24 10:21:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:40,483 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 227 transitions. [2024-10-24 10:21:40,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-24 10:21:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 227 transitions. [2024-10-24 10:21:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 10:21:40,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:40,489 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:40,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 10:21:40,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:40,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1889511032, now seen corresponding path program 1 times [2024-10-24 10:21:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:40,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575466153] [2024-10-24 10:21:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:40,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:21:41,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:41,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575466153] [2024-10-24 10:21:41,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575466153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:21:41,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:21:41,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 10:21:41,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136747107] [2024-10-24 10:21:41,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:21:41,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 10:21:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:41,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 10:21:41,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 10:21:41,012 INFO L87 Difference]: Start difference. First operand 140 states and 227 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:41,135 INFO L93 Difference]: Finished difference Result 374 states and 604 transitions. [2024-10-24 10:21:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 10:21:41,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 226 [2024-10-24 10:21:41,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:41,143 INFO L225 Difference]: With dead ends: 374 [2024-10-24 10:21:41,146 INFO L226 Difference]: Without dead ends: 235 [2024-10-24 10:21:41,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 10:21:41,149 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 145 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:41,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 419 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 10:21:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-24 10:21:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2024-10-24 10:21:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 187 states have (on average 1.5508021390374331) internal successors, (290), 188 states have internal predecessors, (290), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 10:21:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 374 transitions. [2024-10-24 10:21:41,192 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 374 transitions. Word has length 226 [2024-10-24 10:21:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:41,196 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 374 transitions. [2024-10-24 10:21:41,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 374 transitions. [2024-10-24 10:21:41,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 10:21:41,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:41,204 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:41,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 10:21:41,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:41,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1561450762, now seen corresponding path program 1 times [2024-10-24 10:21:41,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:41,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822684205] [2024-10-24 10:21:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:21:41,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:41,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822684205] [2024-10-24 10:21:41,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822684205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:21:41,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:21:41,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 10:21:41,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54898333] [2024-10-24 10:21:41,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:21:41,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 10:21:41,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:41,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 10:21:41,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 10:21:41,536 INFO L87 Difference]: Start difference. First operand 232 states and 374 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:41,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:41,616 INFO L93 Difference]: Finished difference Result 651 states and 1046 transitions. [2024-10-24 10:21:41,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 10:21:41,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 226 [2024-10-24 10:21:41,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:41,622 INFO L225 Difference]: With dead ends: 651 [2024-10-24 10:21:41,623 INFO L226 Difference]: Without dead ends: 420 [2024-10-24 10:21:41,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 10:21:41,625 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 143 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:41,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 456 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 10:21:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-24 10:21:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2024-10-24 10:21:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 348 states have (on average 1.5488505747126438) internal successors, (539), 351 states have internal predecessors, (539), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-24 10:21:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 667 transitions. [2024-10-24 10:21:41,652 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 667 transitions. Word has length 226 [2024-10-24 10:21:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:41,653 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 667 transitions. [2024-10-24 10:21:41,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 667 transitions. [2024-10-24 10:21:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 10:21:41,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:41,656 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:41,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 10:21:41,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash 175247368, now seen corresponding path program 1 times [2024-10-24 10:21:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:41,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337739329] [2024-10-24 10:21:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:21:42,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:42,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337739329] [2024-10-24 10:21:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337739329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:21:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:21:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 10:21:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228645500] [2024-10-24 10:21:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:21:42,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 10:21:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:42,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 10:21:42,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 10:21:42,872 INFO L87 Difference]: Start difference. First operand 417 states and 667 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:43,971 INFO L93 Difference]: Finished difference Result 1646 states and 2633 transitions. [2024-10-24 10:21:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 10:21:43,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 226 [2024-10-24 10:21:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:43,981 INFO L225 Difference]: With dead ends: 1646 [2024-10-24 10:21:43,981 INFO L226 Difference]: Without dead ends: 1230 [2024-10-24 10:21:43,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 10:21:43,984 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 659 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:43,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 517 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 10:21:43,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2024-10-24 10:21:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 939. [2024-10-24 10:21:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 802 states have (on average 1.5635910224438903) internal successors, (1254), 808 states have internal predecessors, (1254), 128 states have call successors, (128), 8 states have call predecessors, (128), 8 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-10-24 10:21:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1510 transitions. [2024-10-24 10:21:44,127 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1510 transitions. Word has length 226 [2024-10-24 10:21:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:44,130 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1510 transitions. [2024-10-24 10:21:44,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1510 transitions. [2024-10-24 10:21:44,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 10:21:44,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:44,136 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:44,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 10:21:44,136 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:44,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1719434832, now seen corresponding path program 1 times [2024-10-24 10:21:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:44,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718112056] [2024-10-24 10:21:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:44,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 24 proven. 69 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:44,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:44,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718112056] [2024-10-24 10:21:44,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718112056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 10:21:44,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531939470] [2024-10-24 10:21:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:44,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:21:44,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:21:44,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 10:21:44,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 10:21:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:45,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 10:21:45,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:21:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 993 proven. 54 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-10-24 10:21:45,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 10:21:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 39 proven. 54 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:45,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531939470] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 10:21:45,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 10:21:45,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-24 10:21:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120108816] [2024-10-24 10:21:45,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 10:21:45,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 10:21:45,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:45,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 10:21:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 10:21:45,799 INFO L87 Difference]: Start difference. First operand 939 states and 1510 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2024-10-24 10:21:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:46,275 INFO L93 Difference]: Finished difference Result 1485 states and 2371 transitions. [2024-10-24 10:21:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 10:21:46,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 226 [2024-10-24 10:21:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:46,282 INFO L225 Difference]: With dead ends: 1485 [2024-10-24 10:21:46,282 INFO L226 Difference]: Without dead ends: 547 [2024-10-24 10:21:46,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 512 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-10-24 10:21:46,285 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 558 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:46,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 427 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 10:21:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-10-24 10:21:46,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 539. [2024-10-24 10:21:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 444 states have (on average 1.481981981981982) internal successors, (658), 446 states have internal predecessors, (658), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-24 10:21:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 826 transitions. [2024-10-24 10:21:46,339 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 826 transitions. Word has length 226 [2024-10-24 10:21:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:46,340 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 826 transitions. [2024-10-24 10:21:46,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2024-10-24 10:21:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 826 transitions. [2024-10-24 10:21:46,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-24 10:21:46,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:46,344 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:46,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 10:21:46,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:21:46,545 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:46,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:46,546 INFO L85 PathProgramCache]: Analyzing trace with hash -41817275, now seen corresponding path program 1 times [2024-10-24 10:21:46,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:46,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219032055] [2024-10-24 10:21:46,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:46,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:21:47,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:47,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219032055] [2024-10-24 10:21:47,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219032055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:21:47,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:21:47,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 10:21:47,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439251916] [2024-10-24 10:21:47,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:21:47,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 10:21:47,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:47,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 10:21:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 10:21:47,633 INFO L87 Difference]: Start difference. First operand 539 states and 826 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:48,491 INFO L93 Difference]: Finished difference Result 1529 states and 2344 transitions. [2024-10-24 10:21:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 10:21:48,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 227 [2024-10-24 10:21:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:48,501 INFO L225 Difference]: With dead ends: 1529 [2024-10-24 10:21:48,502 INFO L226 Difference]: Without dead ends: 991 [2024-10-24 10:21:48,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 10:21:48,505 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 249 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:48,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 385 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 10:21:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-10-24 10:21:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 300. [2024-10-24 10:21:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 252 states have (on average 1.4841269841269842) internal successors, (374), 253 states have internal predecessors, (374), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 10:21:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 458 transitions. [2024-10-24 10:21:48,592 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 458 transitions. Word has length 227 [2024-10-24 10:21:48,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:48,592 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 458 transitions. [2024-10-24 10:21:48,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:21:48,593 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 458 transitions. [2024-10-24 10:21:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-24 10:21:48,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:48,597 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:48,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 10:21:48,598 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:48,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1502370189, now seen corresponding path program 1 times [2024-10-24 10:21:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:48,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639404562] [2024-10-24 10:21:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:49,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639404562] [2024-10-24 10:21:49,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639404562] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 10:21:49,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475272858] [2024-10-24 10:21:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:49,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:21:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:21:49,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 10:21:49,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 10:21:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:49,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 10:21:49,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:21:49,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 891 proven. 63 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2024-10-24 10:21:49,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 10:21:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:50,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475272858] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 10:21:50,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 10:21:50,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-10-24 10:21:50,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829745427] [2024-10-24 10:21:50,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 10:21:50,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 10:21:50,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:50,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 10:21:50,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 10:21:50,132 INFO L87 Difference]: Start difference. First operand 300 states and 458 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-10-24 10:21:50,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:21:50,537 INFO L93 Difference]: Finished difference Result 510 states and 770 transitions. [2024-10-24 10:21:50,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 10:21:50,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 227 [2024-10-24 10:21:50,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:21:50,540 INFO L225 Difference]: With dead ends: 510 [2024-10-24 10:21:50,540 INFO L226 Difference]: Without dead ends: 211 [2024-10-24 10:21:50,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 514 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-24 10:21:50,543 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 273 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 10:21:50,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 489 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 10:21:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-24 10:21:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2024-10-24 10:21:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 157 states have (on average 1.394904458598726) internal successors, (219), 158 states have internal predecessors, (219), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 10:21:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 303 transitions. [2024-10-24 10:21:50,609 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 303 transitions. Word has length 227 [2024-10-24 10:21:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:21:50,609 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 303 transitions. [2024-10-24 10:21:50,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (53), 2 states have call predecessors, (53), 4 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-10-24 10:21:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 303 transitions. [2024-10-24 10:21:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 10:21:50,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:21:50,612 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:21:50,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 10:21:50,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-24 10:21:50,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:21:50,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:21:50,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1086616095, now seen corresponding path program 1 times [2024-10-24 10:21:50,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:21:50,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679375371] [2024-10-24 10:21:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:50,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:21:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:21:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:21:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:21:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:21:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:21:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:21:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:21:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:21:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:21:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:21:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:21:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:21:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:21:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:21:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:21:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:21:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:21:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:21:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:21:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:21:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:21:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:21:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:21:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:21:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:21:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:21:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:21:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:21:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:21:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:21:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:21:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:21:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 84 proven. 9 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:52,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:21:52,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679375371] [2024-10-24 10:21:52,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679375371] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 10:21:52,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926340057] [2024-10-24 10:21:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:21:52,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:21:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:21:52,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 10:21:52,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 10:21:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:21:52,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 10:21:52,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:21:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 453 proven. 57 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2024-10-24 10:21:53,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 10:21:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 84 proven. 9 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-10-24 10:21:53,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926340057] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 10:21:53,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 10:21:53,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2024-10-24 10:21:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797418722] [2024-10-24 10:21:53,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 10:21:53,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 10:21:53,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:21:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 10:21:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-24 10:21:53,862 INFO L87 Difference]: Start difference. First operand 206 states and 303 transitions. Second operand has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-10-24 10:22:07,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:22:07,718 INFO L93 Difference]: Finished difference Result 2737 states and 3902 transitions. [2024-10-24 10:22:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2024-10-24 10:22:07,719 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 228 [2024-10-24 10:22:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:22:07,734 INFO L225 Difference]: With dead ends: 2737 [2024-10-24 10:22:07,735 INFO L226 Difference]: Without dead ends: 2558 [2024-10-24 10:22:07,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 536 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6703 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3254, Invalid=14302, Unknown=0, NotChecked=0, Total=17556 [2024-10-24 10:22:07,745 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 5008 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 3423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 6352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3423 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-10-24 10:22:07,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5011 Valid, 1957 Invalid, 6352 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3423 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-10-24 10:22:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-10-24 10:22:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 572. [2024-10-24 10:22:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 452 states have (on average 1.413716814159292) internal successors, (639), 455 states have internal predecessors, (639), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-10-24 10:22:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 843 transitions. [2024-10-24 10:22:07,953 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 843 transitions. Word has length 228 [2024-10-24 10:22:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:22:07,954 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 843 transitions. [2024-10-24 10:22:07,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-10-24 10:22:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 843 transitions. [2024-10-24 10:22:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 10:22:07,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:22:07,957 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:22:07,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 10:22:08,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:22:08,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:22:08,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:22:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash -193247583, now seen corresponding path program 1 times [2024-10-24 10:22:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:22:08,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879584927] [2024-10-24 10:22:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:22:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:22:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 10:22:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 10:22:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 10:22:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 10:22:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 10:22:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 10:22:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 10:22:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 10:22:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 10:22:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 10:22:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 10:22:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 10:22:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 10:22:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 10:22:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 10:22:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 10:22:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 10:22:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 10:22:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 10:22:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 10:22:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 10:22:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 10:22:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 10:22:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 10:22:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 10:22:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 10:22:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 10:22:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 10:22:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 10:22:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 10:22:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 10:22:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 10:22:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 10:22:08,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:22:08,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879584927] [2024-10-24 10:22:08,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879584927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 10:22:08,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 10:22:08,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 10:22:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516544167] [2024-10-24 10:22:08,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 10:22:08,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 10:22:08,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:22:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 10:22:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 10:22:08,984 INFO L87 Difference]: Start difference. First operand 572 states and 843 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:22:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:22:09,475 INFO L93 Difference]: Finished difference Result 1870 states and 2787 transitions. [2024-10-24 10:22:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 10:22:09,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 228 [2024-10-24 10:22:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:22:09,482 INFO L225 Difference]: With dead ends: 1870 [2024-10-24 10:22:09,483 INFO L226 Difference]: Without dead ends: 1321 [2024-10-24 10:22:09,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 10:22:09,486 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 318 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 10:22:09,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 820 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 10:22:09,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2024-10-24 10:22:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1103. [2024-10-24 10:22:09,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 876 states have (on average 1.4121004566210045) internal successors, (1237), 881 states have internal predecessors, (1237), 194 states have call successors, (194), 32 states have call predecessors, (194), 32 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) [2024-10-24 10:22:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1625 transitions. [2024-10-24 10:22:09,802 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1625 transitions. Word has length 228 [2024-10-24 10:22:09,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:22:09,802 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1625 transitions. [2024-10-24 10:22:09,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-10-24 10:22:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1625 transitions. [2024-10-24 10:22:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 10:22:09,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:22:09,805 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:22:09,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 10:22:09,806 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:22:09,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:22:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash 472822559, now seen corresponding path program 1 times [2024-10-24 10:22:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:22:09,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352367600] [2024-10-24 10:22:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:22:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:22:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 10:22:10,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732332782] [2024-10-24 10:22:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:22:10,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:22:10,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:22:10,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 10:22:10,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 10:22:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:10,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 10:22:10,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:22:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1255 proven. 63 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-10-24 10:22:11,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 10:22:12,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:22:12,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352367600] [2024-10-24 10:22:12,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 10:22:12,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732332782] [2024-10-24 10:22:12,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732332782] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 10:22:12,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 10:22:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-10-24 10:22:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052610422] [2024-10-24 10:22:12,049 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 10:22:12,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 10:22:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:22:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 10:22:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2024-10-24 10:22:12,051 INFO L87 Difference]: Start difference. First operand 1103 states and 1625 transitions. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-24 10:22:14,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 10:22:14,146 INFO L93 Difference]: Finished difference Result 3647 states and 5271 transitions. [2024-10-24 10:22:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 10:22:14,147 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 228 [2024-10-24 10:22:14,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 10:22:14,161 INFO L225 Difference]: With dead ends: 3647 [2024-10-24 10:22:14,161 INFO L226 Difference]: Without dead ends: 2571 [2024-10-24 10:22:14,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 10:22:14,167 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 732 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 10:22:14,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 781 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 10:22:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-10-24 10:22:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 1607. [2024-10-24 10:22:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1402 states have (on average 1.4436519258202567) internal successors, (2024), 1407 states have internal predecessors, (2024), 164 states have call successors, (164), 40 states have call predecessors, (164), 40 states have return successors, (164), 159 states have call predecessors, (164), 164 states have call successors, (164) [2024-10-24 10:22:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2352 transitions. [2024-10-24 10:22:14,482 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2352 transitions. Word has length 228 [2024-10-24 10:22:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 10:22:14,483 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2352 transitions. [2024-10-24 10:22:14,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 4 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-24 10:22:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2352 transitions. [2024-10-24 10:22:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 10:22:14,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 10:22:14,487 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 10:22:14,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 10:22:14,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:22:14,692 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 10:22:14,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 10:22:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1465731691, now seen corresponding path program 1 times [2024-10-24 10:22:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 10:22:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546192231] [2024-10-24 10:22:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:22:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 10:22:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 10:22:15,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413795286] [2024-10-24 10:22:15,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 10:22:15,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 10:22:15,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 10:22:15,008 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 10:22:15,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 10:22:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 10:22:15,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 10:22:15,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 10:22:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1173 proven. 48 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2024-10-24 10:22:15,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 10:22:30,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 10:22:30,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546192231] [2024-10-24 10:22:30,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 10:22:30,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413795286] [2024-10-24 10:22:30,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413795286] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 10:22:30,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 10:22:30,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-10-24 10:22:30,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530142040] [2024-10-24 10:22:30,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 10:22:30,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 10:22:30,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 10:22:30,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 10:22:30,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=683, Unknown=1, NotChecked=0, Total=812 [2024-10-24 10:22:30,052 INFO L87 Difference]: Start difference. First operand 1607 states and 2352 transitions. Second operand has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 19 states have internal predecessors, (83), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-10-24 10:22:34,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 10:22:38,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 10:22:43,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 10:22:47,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]