./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_fillercode_fillercodestructure_filler-ps-co_file-36.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-36.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2364c435fb9bcd7cfef0644ea76ce7e263a6cd5c1a02547d35c44f240523fee1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 10:22:30,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 10:22:30,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 10:22:30,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 10:22:30,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 10:22:30,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 10:22:30,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 10:22:30,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 10:22:30,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 10:22:30,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 10:22:30,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 10:22:30,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 10:22:30,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 10:22:30,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 10:22:30,221 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 10:22:30,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 10:22:30,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 10:22:30,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 10:22:30,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 10:22:30,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 10:22:30,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 10:22:30,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 10:22:30,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 10:22:30,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 10:22:30,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 10:22:30,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 10:22:30,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 10:22:30,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 10:22:30,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 10:22:30,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 10:22:30,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 10:22:30,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 10:22:30,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 10:22:30,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 10:22:30,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 10:22:30,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 10:22:30,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 10:22:30,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 10:22:30,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 10:22:30,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 10:22:30,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 10:22:30,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 10:22:30,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2364c435fb9bcd7cfef0644ea76ce7e263a6cd5c1a02547d35c44f240523fee1 [2024-10-11 10:22:30,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 10:22:30,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 10:22:30,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 10:22:30,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 10:22:30,456 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 10:22:30,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-36.i [2024-10-11 10:22:31,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 10:22:31,969 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 10:22:31,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-36.i [2024-10-11 10:22:31,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2afb543c9/abdb7853906640028f9c6f6dd4fe55f3/FLAG75c82fecf [2024-10-11 10:22:31,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2afb543c9/abdb7853906640028f9c6f6dd4fe55f3 [2024-10-11 10:22:31,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 10:22:32,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 10:22:32,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 10:22:32,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 10:22:32,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 10:22:32,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 10:22:31" (1/1) ... [2024-10-11 10:22:32,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4234ea1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32, skipping insertion in model container [2024-10-11 10:22:32,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 10:22:31" (1/1) ... [2024-10-11 10:22:32,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 10:22:32,193 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_fillercode_fillercodestructure_filler-ps-co_file-36.i[919,932] [2024-10-11 10:22:32,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 10:22:32,328 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 10:22:32,347 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_fillercode_fillercodestructure_filler-ps-co_file-36.i[919,932] [2024-10-11 10:22:32,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 10:22:32,432 INFO L204 MainTranslator]: Completed translation [2024-10-11 10:22:32,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32 WrapperNode [2024-10-11 10:22:32,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 10:22:32,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 10:22:32,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 10:22:32,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 10:22:32,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,489 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 275 [2024-10-11 10:22:32,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 10:22:32,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 10:22:32,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 10:22:32,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 10:22:32,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,525 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 10:22:32,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 10:22:32,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 10:22:32,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 10:22:32,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 10:22:32,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (1/1) ... [2024-10-11 10:22:32,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 10:22:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 10:22:32,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 10:22:32,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 10:22:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 10:22:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 10:22:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 10:22:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 10:22:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 10:22:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 10:22:32,720 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 10:22:32,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 10:22:33,109 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-11 10:22:33,110 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 10:22:33,152 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 10:22:33,152 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 10:22:33,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 10:22:33 BoogieIcfgContainer [2024-10-11 10:22:33,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 10:22:33,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 10:22:33,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 10:22:33,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 10:22:33,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 10:22:31" (1/3) ... [2024-10-11 10:22:33,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f575284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 10:22:33, skipping insertion in model container [2024-10-11 10:22:33,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 10:22:32" (2/3) ... [2024-10-11 10:22:33,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f575284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 10:22:33, skipping insertion in model container [2024-10-11 10:22:33,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 10:22:33" (3/3) ... [2024-10-11 10:22:33,159 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-36.i [2024-10-11 10:22:33,172 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 10:22:33,172 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 10:22:33,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 10:22:33,225 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;@5ef3a2f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 10:22:33,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 10:22:33,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-11 10:22:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-11 10:22:33,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:22:33,248 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:22:33,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:22:33,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:22:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1667395203, now seen corresponding path program 1 times [2024-10-11 10:22:33,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:22:33,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483397027] [2024-10-11 10:22:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:33,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:22:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:22:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:22:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:22:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 10:22:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 10:22:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 10:22:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 10:22:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 10:22:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 10:22:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 10:22:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 10:22:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 10:22:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 10:22:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 10:22:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 10:22:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 10:22:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 10:22:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 10:22:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 10:22:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 10:22:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 10:22:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 10:22:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 10:22:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 10:22:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 10:22:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 10:22:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 10:22:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 10:22:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 10:22:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 10:22:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 10:22:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 10:22:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 10:22:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 10:22:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-11 10:22:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-11 10:22:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 10:22:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-11 10:22:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-11 10:22:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-11 10:22:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-11 10:22:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-11 10:22:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 10:22:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-11 10:22:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-10-11 10:22:33,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:22:33,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483397027] [2024-10-11 10:22:33,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483397027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:22:33,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:22:33,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 10:22:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174556353] [2024-10-11 10:22:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:22:33,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 10:22:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:22:33,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 10:22:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 10:22:33,892 INFO L87 Difference]: Start difference. First operand has 115 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-10-11 10:22:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:22:33,947 INFO L93 Difference]: Finished difference Result 227 states and 412 transitions. [2024-10-11 10:22:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 10:22:33,953 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 272 [2024-10-11 10:22:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:22:33,964 INFO L225 Difference]: With dead ends: 227 [2024-10-11 10:22:33,964 INFO L226 Difference]: Without dead ends: 113 [2024-10-11 10:22:33,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 10:22:33,975 INFO L432 NwaCegarLoop]: 176 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, 176 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 [2024-10-11 10:22:33,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 10:22:33,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-11 10:22:34,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-11 10:22:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-11 10:22:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 179 transitions. [2024-10-11 10:22:34,027 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 179 transitions. Word has length 272 [2024-10-11 10:22:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:22:34,028 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 179 transitions. [2024-10-11 10:22:34,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-10-11 10:22:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 179 transitions. [2024-10-11 10:22:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-11 10:22:34,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:22:34,035 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:22:34,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 10:22:34,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:22:34,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:22:34,037 INFO L85 PathProgramCache]: Analyzing trace with hash 858194171, now seen corresponding path program 1 times [2024-10-11 10:22:34,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:22:34,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932514395] [2024-10-11 10:22:34,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:34,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:22:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:22:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:22:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:22:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 10:22:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 10:22:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 10:22:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 10:22:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 10:22:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 10:22:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 10:22:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 10:22:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 10:22:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 10:22:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 10:22:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 10:22:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 10:22:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 10:22:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 10:22:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 10:22:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 10:22:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 10:22:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 10:22:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 10:22:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 10:22:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 10:22:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 10:22:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 10:22:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 10:22:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 10:22:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 10:22:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 10:22:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 10:22:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 10:22:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 10:22:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-11 10:22:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-11 10:22:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 10:22:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-11 10:22:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-11 10:22:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-11 10:22:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-11 10:22:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-11 10:22:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 10:22:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-11 10:22:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-10-11 10:22:34,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:22:34,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932514395] [2024-10-11 10:22:34,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932514395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 10:22:34,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 10:22:34,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 10:22:34,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338539555] [2024-10-11 10:22:34,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 10:22:34,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 10:22:34,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:22:34,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 10:22:34,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 10:22:34,638 INFO L87 Difference]: Start difference. First operand 113 states and 179 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-10-11 10:22:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:22:34,715 INFO L93 Difference]: Finished difference Result 337 states and 535 transitions. [2024-10-11 10:22:34,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 10:22:34,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 272 [2024-10-11 10:22:34,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:22:34,722 INFO L225 Difference]: With dead ends: 337 [2024-10-11 10:22:34,723 INFO L226 Difference]: Without dead ends: 225 [2024-10-11 10:22:34,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 10:22:34,725 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 102 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 10:22:34,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 347 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 10:22:34,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-11 10:22:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2024-10-11 10:22:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 132 states have (on average 1.3484848484848484) internal successors, (178), 132 states have internal predecessors, (178), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-11 10:22:34,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 354 transitions. [2024-10-11 10:22:34,770 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 354 transitions. Word has length 272 [2024-10-11 10:22:34,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:22:34,771 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 354 transitions. [2024-10-11 10:22:34,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-10-11 10:22:34,771 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 354 transitions. [2024-10-11 10:22:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-10-11 10:22:34,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:22:34,778 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:22:34,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 10:22:34,778 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:22:34,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:22:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash -83965158, now seen corresponding path program 1 times [2024-10-11 10:22:34,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:22:34,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972503633] [2024-10-11 10:22:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:34,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:22:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 10:22:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 10:22:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 10:22:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 10:22:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 10:22:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 10:22:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 10:22:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 10:22:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 10:22:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 10:22:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 10:22:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 10:22:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 10:22:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 10:22:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 10:22:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 10:22:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 10:22:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 10:22:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 10:22:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 10:22:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 10:22:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 10:22:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 10:22:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 10:22:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 10:22:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 10:22:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 10:22:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 10:22:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 10:22:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-11 10:22:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-11 10:22:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-11 10:22:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-11 10:22:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-11 10:22:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-11 10:22:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-11 10:22:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-11 10:22:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-11 10:22:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-11 10:22:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-11 10:22:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-11 10:22:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-11 10:22:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 10:22:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-11 10:22:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 120 proven. 9 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-10-11 10:22:36,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 10:22:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972503633] [2024-10-11 10:22:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972503633] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 10:22:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47517681] [2024-10-11 10:22:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:36,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 10:22:36,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 10:22:36,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 10:22:36,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 10:22:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 10:22:36,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 10:22:36,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 10:22:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 759 proven. 18 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2024-10-11 10:22:36,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 10:22:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 351 proven. 27 refuted. 0 times theorem prover too weak. 3406 trivial. 0 not checked. [2024-10-11 10:22:37,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47517681] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 10:22:37,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 10:22:37,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 26 [2024-10-11 10:22:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063907591] [2024-10-11 10:22:37,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 10:22:37,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 10:22:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 10:22:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 10:22:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2024-10-11 10:22:37,616 INFO L87 Difference]: Start difference. First operand 223 states and 354 transitions. Second operand has 26 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 8 states have call successors, (92), 4 states have call predecessors, (92), 8 states have return successors, (93), 8 states have call predecessors, (93), 8 states have call successors, (93) [2024-10-11 10:22:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 10:22:40,408 INFO L93 Difference]: Finished difference Result 748 states and 1147 transitions. [2024-10-11 10:22:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-11 10:22:40,410 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 8 states have call successors, (92), 4 states have call predecessors, (92), 8 states have return successors, (93), 8 states have call predecessors, (93), 8 states have call successors, (93) Word has length 275 [2024-10-11 10:22:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 10:22:40,415 INFO L225 Difference]: With dead ends: 748 [2024-10-11 10:22:40,415 INFO L226 Difference]: Without dead ends: 526 [2024-10-11 10:22:40,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 625 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1136, Invalid=3154, Unknown=0, NotChecked=0, Total=4290 [2024-10-11 10:22:40,418 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 924 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 10:22:40,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1204 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 10:22:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-11 10:22:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 382. [2024-10-11 10:22:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 235 states have (on average 1.3361702127659574) internal successors, (314), 237 states have internal predecessors, (314), 136 states have call successors, (136), 10 states have call predecessors, (136), 10 states have return successors, (136), 134 states have call predecessors, (136), 136 states have call successors, (136) [2024-10-11 10:22:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 586 transitions. [2024-10-11 10:22:40,481 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 586 transitions. Word has length 275 [2024-10-11 10:22:40,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 10:22:40,481 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 586 transitions. [2024-10-11 10:22:40,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 8 states have call successors, (92), 4 states have call predecessors, (92), 8 states have return successors, (93), 8 states have call predecessors, (93), 8 states have call successors, (93) [2024-10-11 10:22:40,482 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 586 transitions. [2024-10-11 10:22:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-10-11 10:22:40,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 10:22:40,484 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 10:22:40,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 10:22:40,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 10:22:40,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 10:22:40,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 10:22:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash 331972694, now seen corresponding path program 1 times [2024-10-11 10:22:40,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 10:22:40,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546788491] [2024-10-11 10:22:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:40,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 10:22:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 10:22:40,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248246195] [2024-10-11 10:22:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 10:22:40,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 10:22:40,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 10:22:40,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 10:22:40,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process