./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --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/recursive-simple/fibo_2calls_8-1.c -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 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:04:25,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:04:25,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:04:25,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:04:25,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:04:25,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:04:25,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:04:25,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:04:25,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:04:25,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:04:25,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:04:25,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:04:25,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:04:25,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:04:25,801 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:04:25,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:04:25,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:04:25,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:04:25,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:04:25,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:04:25,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:04:25,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:04:25,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:04:25,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:04:25,807 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:04:25,807 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:04:25,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:04:25,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:04:25,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:04:25,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:04:25,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:04:25,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:04:25,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:04:25,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:04:25,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:04:25,810 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:04:25,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:04:25,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:04:25,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:04:25,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:04:25,812 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:04:25,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:04:25,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 [2024-10-11 03:04:26,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:04:26,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:04:26,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:04:26,092 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:04:26,092 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:04:26,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-11 03:04:27,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:04:27,724 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:04:27,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-10-11 03:04:27,733 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ec5bdc461/f601dd9c517c40fa8001779646a0f007/FLAG4d2e48517 [2024-10-11 03:04:27,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ec5bdc461/f601dd9c517c40fa8001779646a0f007 [2024-10-11 03:04:27,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:04:27,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:04:27,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:04:27,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:04:27,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:04:27,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:04:27" (1/1) ... [2024-10-11 03:04:27,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f72cdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:27, skipping insertion in model container [2024-10-11 03:04:27,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:04:27" (1/1) ... [2024-10-11 03:04:27,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:04:27,960 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/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-10-11 03:04:27,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:04:27,983 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:04:27,998 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/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-10-11 03:04:28,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:04:28,019 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:04:28,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28 WrapperNode [2024-10-11 03:04:28,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:04:28,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:04:28,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:04:28,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:04:28,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,050 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-10-11 03:04:28,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:04:28,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:04:28,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:04:28,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:04:28,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,078 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 03:04:28,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:04:28,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:04:28,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:04:28,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:04:28,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (1/1) ... [2024-10-11 03:04:28,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:04:28,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:28,128 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 03:04:28,132 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 03:04:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:04:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:04:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-10-11 03:04:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-10-11 03:04:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-10-11 03:04:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-10-11 03:04:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:04:28,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:04:28,297 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:04:28,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:04:28,396 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-11 03:04:28,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:04:28,418 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:04:28,419 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:04:28,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:04:28 BoogieIcfgContainer [2024-10-11 03:04:28,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:04:28,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:04:28,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:04:28,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:04:28,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:04:27" (1/3) ... [2024-10-11 03:04:28,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10851030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:04:28, skipping insertion in model container [2024-10-11 03:04:28,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:04:28" (2/3) ... [2024-10-11 03:04:28,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10851030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:04:28, skipping insertion in model container [2024-10-11 03:04:28,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:04:28" (3/3) ... [2024-10-11 03:04:28,429 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-10-11 03:04:28,446 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:04:28,446 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:04:28,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:04:28,518 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;@2a73d78a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:04:28,518 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:04:28,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-11 03:04:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 03:04:28,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:28,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:28,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:28,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash -389521846, now seen corresponding path program 1 times [2024-10-11 03:04:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963366121] [2024-10-11 03:04:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:28,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:04:28,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:28,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963366121] [2024-10-11 03:04:28,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963366121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:04:28,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:04:28,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:04:28,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757968203] [2024-10-11 03:04:28,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:04:28,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:04:28,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:28,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:04:28,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:04:28,946 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 03:04:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:29,080 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2024-10-11 03:04:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:04:29,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-10-11 03:04:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:29,094 INFO L225 Difference]: With dead ends: 36 [2024-10-11 03:04:29,094 INFO L226 Difference]: Without dead ends: 28 [2024-10-11 03:04:29,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:04:29,102 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:29,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 80 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:04:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-11 03:04:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-10-11 03:04:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-11 03:04:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-10-11 03:04:29,149 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 9 [2024-10-11 03:04:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:29,149 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-10-11 03:04:29,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 03:04:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-10-11 03:04:29,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 03:04:29,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:29,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:29,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:04:29,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:29,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1524884472, now seen corresponding path program 1 times [2024-10-11 03:04:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:29,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596352901] [2024-10-11 03:04:29,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:29,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:04:29,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:29,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596352901] [2024-10-11 03:04:29,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596352901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:04:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:04:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:04:29,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867910216] [2024-10-11 03:04:29,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:04:29,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:04:29,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:29,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:04:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:04:29,283 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 03:04:29,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:29,342 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-10-11 03:04:29,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:04:29,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-10-11 03:04:29,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:29,344 INFO L225 Difference]: With dead ends: 32 [2024-10-11 03:04:29,344 INFO L226 Difference]: Without dead ends: 28 [2024-10-11 03:04:29,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:04:29,346 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:29,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 73 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:04:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-11 03:04:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-10-11 03:04:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-11 03:04:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-10-11 03:04:29,354 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 10 [2024-10-11 03:04:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:29,355 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-10-11 03:04:29,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 03:04:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-10-11 03:04:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 03:04:29,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:29,356 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:29,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:04:29,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:29,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 741502751, now seen corresponding path program 1 times [2024-10-11 03:04:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946918410] [2024-10-11 03:04:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 03:04:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:29,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:29,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946918410] [2024-10-11 03:04:29,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946918410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:29,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910807042] [2024-10-11 03:04:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:29,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:29,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:29,576 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 03:04:29,582 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 03:04:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:29,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:04:29,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:29,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:30,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910807042] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:30,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:30,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-10-11 03:04:30,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915090798] [2024-10-11 03:04:30,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:30,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:04:30,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:30,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:04:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:04:30,040 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 03:04:30,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:30,196 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2024-10-11 03:04:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:04:30,197 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 22 [2024-10-11 03:04:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:30,198 INFO L225 Difference]: With dead ends: 54 [2024-10-11 03:04:30,199 INFO L226 Difference]: Without dead ends: 30 [2024-10-11 03:04:30,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:04:30,200 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:30,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 128 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:04:30,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-11 03:04:30,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-10-11 03:04:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-11 03:04:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-10-11 03:04:30,212 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 22 [2024-10-11 03:04:30,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:30,212 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-10-11 03:04:30,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 03:04:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-10-11 03:04:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 03:04:30,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:30,216 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:30,234 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 03:04:30,417 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 03:04:30,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:30,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:30,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1785876995, now seen corresponding path program 1 times [2024-10-11 03:04:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:30,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709069470] [2024-10-11 03:04:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:30,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:30,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:30,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:30,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:30,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709069470] [2024-10-11 03:04:30,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709069470] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214197613] [2024-10-11 03:04:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:30,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:30,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:30,614 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 03:04:30,615 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 [2024-10-11 03:04:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:30,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:04:30,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:30,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 03:04:30,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214197613] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:30,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:30,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-10-11 03:04:30,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834360148] [2024-10-11 03:04:30,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:30,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:04:30,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:30,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:04:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:04:30,910 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 03:04:31,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:31,104 INFO L93 Difference]: Finished difference Result 52 states and 73 transitions. [2024-10-11 03:04:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:04:31,105 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 23 [2024-10-11 03:04:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:31,108 INFO L225 Difference]: With dead ends: 52 [2024-10-11 03:04:31,108 INFO L226 Difference]: Without dead ends: 48 [2024-10-11 03:04:31,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:04:31,109 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:31,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 114 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:04:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-11 03:04:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-10-11 03:04:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 32 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17) [2024-10-11 03:04:31,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-10-11 03:04:31,121 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 23 [2024-10-11 03:04:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:31,122 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-10-11 03:04:31,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 03:04:31,122 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-10-11 03:04:31,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 03:04:31,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:31,124 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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 03:04:31,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 03:04:31,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:31,326 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:31,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1754399412, now seen corresponding path program 1 times [2024-10-11 03:04:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:31,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830490762] [2024-10-11 03:04:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 03:04:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:04:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:04:31,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:31,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830490762] [2024-10-11 03:04:31,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830490762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:31,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785084659] [2024-10-11 03:04:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:31,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:31,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:31,471 INFO L229 MonitoredProcess]: Starting monitored process 4 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 03:04:31,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 03:04:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:31,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 03:04:31,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:04:31,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:04:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785084659] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:32,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-10-11 03:04:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142673575] [2024-10-11 03:04:32,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:32,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 03:04:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:32,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 03:04:32,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:04:32,046 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 03:04:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:32,293 INFO L93 Difference]: Finished difference Result 108 states and 176 transitions. [2024-10-11 03:04:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:04:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 35 [2024-10-11 03:04:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:32,295 INFO L225 Difference]: With dead ends: 108 [2024-10-11 03:04:32,296 INFO L226 Difference]: Without dead ends: 64 [2024-10-11 03:04:32,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:04:32,298 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:32,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 119 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:04:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-11 03:04:32,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-10-11 03:04:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.25) internal successors, (50), 43 states have internal predecessors, (50), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29) [2024-10-11 03:04:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2024-10-11 03:04:32,318 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 35 [2024-10-11 03:04:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:32,318 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2024-10-11 03:04:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 03:04:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2024-10-11 03:04:32,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-11 03:04:32,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:32,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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 03:04:32,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 03:04:32,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:32,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:32,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:32,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2101254926, now seen corresponding path program 1 times [2024-10-11 03:04:32,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:32,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497070765] [2024-10-11 03:04:32,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:32,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 03:04:32,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497070765] [2024-10-11 03:04:32,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497070765] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:32,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050198614] [2024-10-11 03:04:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:32,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:32,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:32,665 INFO L229 MonitoredProcess]: Starting monitored process 5 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 03:04:32,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 03:04:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:32,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 03:04:32,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:04:32,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:04:33,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050198614] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:33,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:33,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-10-11 03:04:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672618085] [2024-10-11 03:04:33,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:33,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 03:04:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:33,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 03:04:33,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:04:33,151 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 03:04:33,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:33,444 INFO L93 Difference]: Finished difference Result 178 states and 324 transitions. [2024-10-11 03:04:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:04:33,445 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36 [2024-10-11 03:04:33,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:33,448 INFO L225 Difference]: With dead ends: 178 [2024-10-11 03:04:33,448 INFO L226 Difference]: Without dead ends: 118 [2024-10-11 03:04:33,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:04:33,455 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 43 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:33,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 154 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:04:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-11 03:04:33,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99. [2024-10-11 03:04:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 66 states have internal predecessors, (77), 21 states have call successors, (21), 7 states have call predecessors, (21), 14 states have return successors, (63), 25 states have call predecessors, (63), 21 states have call successors, (63) [2024-10-11 03:04:33,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 161 transitions. [2024-10-11 03:04:33,498 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 161 transitions. Word has length 36 [2024-10-11 03:04:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:33,499 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 161 transitions. [2024-10-11 03:04:33,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 03:04:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions. [2024-10-11 03:04:33,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 03:04:33,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:33,505 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:33,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 03:04:33,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 03:04:33,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:33,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 644290867, now seen corresponding path program 1 times [2024-10-11 03:04:33,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842554401] [2024-10-11 03:04:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:04:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:04:33,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:33,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842554401] [2024-10-11 03:04:33,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842554401] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:33,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235940338] [2024-10-11 03:04:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:33,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:33,929 INFO L229 MonitoredProcess]: Starting monitored process 6 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 03:04:33,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 03:04:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:33,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 03:04:33,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:04:34,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:04:34,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235940338] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:34,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:34,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-10-11 03:04:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693306222] [2024-10-11 03:04:34,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:34,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 03:04:34,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:34,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 03:04:34,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:04:34,661 INFO L87 Difference]: Start difference. First operand 99 states and 161 transitions. Second operand has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2024-10-11 03:04:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:35,095 INFO L93 Difference]: Finished difference Result 248 states and 485 transitions. [2024-10-11 03:04:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 03:04:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 50 [2024-10-11 03:04:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:35,103 INFO L225 Difference]: With dead ends: 248 [2024-10-11 03:04:35,103 INFO L226 Difference]: Without dead ends: 151 [2024-10-11 03:04:35,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-10-11 03:04:35,106 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:35,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 320 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:04:35,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-11 03:04:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 108. [2024-10-11 03:04:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66) [2024-10-11 03:04:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 176 transitions. [2024-10-11 03:04:35,141 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 176 transitions. Word has length 50 [2024-10-11 03:04:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:35,142 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 176 transitions. [2024-10-11 03:04:35,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2024-10-11 03:04:35,142 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 176 transitions. [2024-10-11 03:04:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 03:04:35,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:35,145 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:35,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 03:04:35,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:35,346 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:35,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 18580375, now seen corresponding path program 1 times [2024-10-11 03:04:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:35,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721838519] [2024-10-11 03:04:35,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:35,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:04:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-11 03:04:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721838519] [2024-10-11 03:04:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721838519] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938506859] [2024-10-11 03:04:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:35,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:35,687 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:04:35,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 03:04:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:35,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 03:04:35,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-11 03:04:35,879 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:36,730 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-11 03:04:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938506859] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:36,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:36,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-10-11 03:04:36,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19196587] [2024-10-11 03:04:36,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:36,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 03:04:36,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:36,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 03:04:36,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:04:36,734 INFO L87 Difference]: Start difference. First operand 108 states and 176 transitions. Second operand has 24 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 24 states have internal predecessors, (73), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2024-10-11 03:04:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:37,246 INFO L93 Difference]: Finished difference Result 252 states and 490 transitions. [2024-10-11 03:04:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 03:04:37,247 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 24 states have internal predecessors, (73), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) Word has length 78 [2024-10-11 03:04:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:37,249 INFO L225 Difference]: With dead ends: 252 [2024-10-11 03:04:37,249 INFO L226 Difference]: Without dead ends: 104 [2024-10-11 03:04:37,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 164 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 03:04:37,252 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 49 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:37,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 324 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:04:37,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-11 03:04:37,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2024-10-11 03:04:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 59 states have internal predecessors, (69), 16 states have call successors, (16), 8 states have call predecessors, (16), 12 states have return successors, (38), 19 states have call predecessors, (38), 16 states have call successors, (38) [2024-10-11 03:04:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 123 transitions. [2024-10-11 03:04:37,279 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 123 transitions. Word has length 78 [2024-10-11 03:04:37,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:37,280 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 123 transitions. [2024-10-11 03:04:37,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 24 states have internal predecessors, (73), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2024-10-11 03:04:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2024-10-11 03:04:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-11 03:04:37,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:37,283 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 14, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:37,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 03:04:37,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 03:04:37,488 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:37,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash 370437973, now seen corresponding path program 1 times [2024-10-11 03:04:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:37,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906506532] [2024-10-11 03:04:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:04:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:37,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 03:04:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 03:04:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 84 proven. 258 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2024-10-11 03:04:38,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:38,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906506532] [2024-10-11 03:04:38,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906506532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:38,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211957977] [2024-10-11 03:04:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:38,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:38,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:38,073 INFO L229 MonitoredProcess]: Starting monitored process 8 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 03:04:38,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 03:04:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:38,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 03:04:38,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 47 proven. 369 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2024-10-11 03:04:38,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 47 proven. 385 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2024-10-11 03:04:39,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211957977] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:39,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:39,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-10-11 03:04:39,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031037841] [2024-10-11 03:04:39,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:39,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 03:04:39,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 03:04:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-10-11 03:04:39,694 INFO L87 Difference]: Start difference. First operand 87 states and 123 transitions. Second operand has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (26), 1 states have call predecessors, (26), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2024-10-11 03:04:40,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:40,218 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2024-10-11 03:04:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-11 03:04:40,219 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (26), 1 states have call predecessors, (26), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 216 [2024-10-11 03:04:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:40,221 INFO L225 Difference]: With dead ends: 225 [2024-10-11 03:04:40,221 INFO L226 Difference]: Without dead ends: 127 [2024-10-11 03:04:40,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 474 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-10-11 03:04:40,223 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 76 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:40,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 352 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:04:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-11 03:04:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 107. [2024-10-11 03:04:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 73 states have internal predecessors, (88), 20 states have call successors, (20), 11 states have call predecessors, (20), 14 states have return successors, (51), 22 states have call predecessors, (51), 20 states have call successors, (51) [2024-10-11 03:04:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 159 transitions. [2024-10-11 03:04:40,248 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 159 transitions. Word has length 216 [2024-10-11 03:04:40,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:40,250 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 159 transitions. [2024-10-11 03:04:40,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (26), 1 states have call predecessors, (26), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2024-10-11 03:04:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 159 transitions. [2024-10-11 03:04:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-10-11 03:04:40,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:40,253 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 15, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:40,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 03:04:40,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:40,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:40,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:40,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1566907662, now seen corresponding path program 1 times [2024-10-11 03:04:40,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:40,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820079796] [2024-10-11 03:04:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:40,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:40,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 03:04:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 03:04:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 172 proven. 318 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2024-10-11 03:04:41,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:41,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820079796] [2024-10-11 03:04:41,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820079796] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:41,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170032846] [2024-10-11 03:04:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:41,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:41,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:41,328 INFO L229 MonitoredProcess]: Starting monitored process 9 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 03:04:41,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 03:04:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:41,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 03:04:41,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 82 proven. 490 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-10-11 03:04:41,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 82 proven. 514 refuted. 0 times theorem prover too weak. 1184 trivial. 0 not checked. [2024-10-11 03:04:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170032846] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:43,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:43,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 27 [2024-10-11 03:04:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458879439] [2024-10-11 03:04:43,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:43,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-11 03:04:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:43,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-11 03:04:43,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-10-11 03:04:43,405 INFO L87 Difference]: Start difference. First operand 107 states and 159 transitions. Second operand has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) [2024-10-11 03:04:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:43,981 INFO L93 Difference]: Finished difference Result 250 states and 428 transitions. [2024-10-11 03:04:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 03:04:43,982 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) Word has length 254 [2024-10-11 03:04:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:43,986 INFO L225 Difference]: With dead ends: 250 [2024-10-11 03:04:43,986 INFO L226 Difference]: Without dead ends: 152 [2024-10-11 03:04:43,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 560 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 03:04:43,988 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 72 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:43,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 276 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:04:43,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-11 03:04:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 139. [2024-10-11 03:04:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.25) internal successors, (120), 95 states have internal predecessors, (120), 26 states have call successors, (26), 17 states have call predecessors, (26), 16 states have return successors, (71), 26 states have call predecessors, (71), 26 states have call successors, (71) [2024-10-11 03:04:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 217 transitions. [2024-10-11 03:04:44,010 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 217 transitions. Word has length 254 [2024-10-11 03:04:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:44,010 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 217 transitions. [2024-10-11 03:04:44,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) [2024-10-11 03:04:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 217 transitions. [2024-10-11 03:04:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-10-11 03:04:44,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:44,022 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 41, 41, 35, 34, 23, 23, 23, 23, 23, 23, 23, 20, 20, 20, 20, 20, 20, 20, 14, 12, 12, 6, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:44,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 03:04:44,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 03:04:44,226 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:44,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:44,227 INFO L85 PathProgramCache]: Analyzing trace with hash 373990425, now seen corresponding path program 2 times [2024-10-11 03:04:44,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:44,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130957914] [2024-10-11 03:04:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:44,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:44,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 03:04:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 03:04:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:45,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-10-11 03:04:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 03:04:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 03:04:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:46,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10348 backedges. 313 proven. 1101 refuted. 0 times theorem prover too weak. 8934 trivial. 0 not checked. [2024-10-11 03:04:46,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:46,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130957914] [2024-10-11 03:04:46,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130957914] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367429654] [2024-10-11 03:04:46,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:04:46,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:46,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:46,258 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:04:46,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 03:04:46,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 03:04:46,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:04:46,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 03:04:46,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:46,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10348 backedges. 261 proven. 1065 refuted. 0 times theorem prover too weak. 9022 trivial. 0 not checked. [2024-10-11 03:04:46,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10348 backedges. 261 proven. 1081 refuted. 0 times theorem prover too weak. 9006 trivial. 0 not checked. [2024-10-11 03:04:49,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367429654] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:49,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:49,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 15] total 26 [2024-10-11 03:04:49,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722856023] [2024-10-11 03:04:49,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:49,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 03:04:49,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 03:04:49,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2024-10-11 03:04:49,093 INFO L87 Difference]: Start difference. First operand 139 states and 217 transitions. Second operand has 26 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 26 states have internal predecessors, (85), 19 states have call successors, (27), 1 states have call predecessors, (27), 10 states have return successors, (34), 15 states have call predecessors, (34), 19 states have call successors, (34) [2024-10-11 03:04:49,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:49,593 INFO L93 Difference]: Finished difference Result 315 states and 523 transitions. [2024-10-11 03:04:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:04:49,594 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 26 states have internal predecessors, (85), 19 states have call successors, (27), 1 states have call predecessors, (27), 10 states have return successors, (34), 15 states have call predecessors, (34), 19 states have call successors, (34) Word has length 594 [2024-10-11 03:04:49,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:49,597 INFO L225 Difference]: With dead ends: 315 [2024-10-11 03:04:49,597 INFO L226 Difference]: Without dead ends: 185 [2024-10-11 03:04:49,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1388 GetRequests, 1343 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=1308, Unknown=0, NotChecked=0, Total=1560 [2024-10-11 03:04:49,599 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 78 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:49,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 306 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:04:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-11 03:04:49,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 142. [2024-10-11 03:04:49,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 97 states have internal predecessors, (118), 26 states have call successors, (26), 17 states have call predecessors, (26), 17 states have return successors, (70), 27 states have call predecessors, (70), 26 states have call successors, (70) [2024-10-11 03:04:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 214 transitions. [2024-10-11 03:04:49,613 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 214 transitions. Word has length 594 [2024-10-11 03:04:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:49,614 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 214 transitions. [2024-10-11 03:04:49,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 26 states have internal predecessors, (85), 19 states have call successors, (27), 1 states have call predecessors, (27), 10 states have return successors, (34), 15 states have call predecessors, (34), 19 states have call successors, (34) [2024-10-11 03:04:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 214 transitions. [2024-10-11 03:04:49,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-11 03:04:49,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:49,619 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 20, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 9, 7, 6, 4, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:49,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 03:04:49,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:49,820 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:49,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:49,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1772756199, now seen corresponding path program 3 times [2024-10-11 03:04:49,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:49,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024452842] [2024-10-11 03:04:49,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:49,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:04:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-11 03:04:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:50,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-11 03:04:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 450 proven. 632 refuted. 0 times theorem prover too weak. 2402 trivial. 0 not checked. [2024-10-11 03:04:51,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:51,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024452842] [2024-10-11 03:04:51,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024452842] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026095461] [2024-10-11 03:04:51,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 03:04:51,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:51,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:51,115 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:04:51,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 03:04:51,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 03:04:51,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:04:51,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 03:04:51,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 531 proven. 89 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2024-10-11 03:04:51,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:04:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 535 proven. 95 refuted. 0 times theorem prover too weak. 2854 trivial. 0 not checked. [2024-10-11 03:04:52,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026095461] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:04:52,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:04:52,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10, 13] total 33 [2024-10-11 03:04:52,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649766265] [2024-10-11 03:04:52,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:04:52,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 03:04:52,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:04:52,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 03:04:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 03:04:52,814 INFO L87 Difference]: Start difference. First operand 142 states and 214 transitions. Second operand has 33 states, 32 states have (on average 2.9375) internal successors, (94), 33 states have internal predecessors, (94), 20 states have call successors, (29), 1 states have call predecessors, (29), 15 states have return successors, (38), 25 states have call predecessors, (38), 20 states have call successors, (38) [2024-10-11 03:04:53,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:04:53,663 INFO L93 Difference]: Finished difference Result 375 states and 617 transitions. [2024-10-11 03:04:53,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 03:04:53,664 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.9375) internal successors, (94), 33 states have internal predecessors, (94), 20 states have call successors, (29), 1 states have call predecessors, (29), 15 states have return successors, (38), 25 states have call predecessors, (38), 20 states have call successors, (38) Word has length 350 [2024-10-11 03:04:53,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:04:53,668 INFO L225 Difference]: With dead ends: 375 [2024-10-11 03:04:53,668 INFO L226 Difference]: Without dead ends: 221 [2024-10-11 03:04:53,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 783 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=425, Invalid=2437, Unknown=0, NotChecked=0, Total=2862 [2024-10-11 03:04:53,671 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 109 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:04:53,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 466 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:04:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-11 03:04:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 160. [2024-10-11 03:04:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 110 states have internal predecessors, (135), 31 states have call successors, (31), 21 states have call predecessors, (31), 17 states have return successors, (72), 28 states have call predecessors, (72), 31 states have call successors, (72) [2024-10-11 03:04:53,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2024-10-11 03:04:53,693 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 350 [2024-10-11 03:04:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:04:53,694 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2024-10-11 03:04:53,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.9375) internal successors, (94), 33 states have internal predecessors, (94), 20 states have call successors, (29), 1 states have call predecessors, (29), 15 states have return successors, (38), 25 states have call predecessors, (38), 20 states have call successors, (38) [2024-10-11 03:04:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2024-10-11 03:04:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-10-11 03:04:53,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:04:53,701 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 38, 38, 31, 31, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 8, 7, 1, 1, 1, 1, 1, 1] [2024-10-11 03:04:53,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 03:04:53,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 03:04:53,902 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:04:53,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:04:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 734203464, now seen corresponding path program 4 times [2024-10-11 03:04:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:04:53,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614384220] [2024-10-11 03:04:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:04:53,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:04:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:54,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:04:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:54,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:04:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-11 03:04:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:04:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-10-11 03:04:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:04:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:04:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:04:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:04:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:04:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:04:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:04:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8074 backedges. 545 proven. 1546 refuted. 0 times theorem prover too weak. 5983 trivial. 0 not checked. [2024-10-11 03:04:55,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:04:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614384220] [2024-10-11 03:04:55,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614384220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:04:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608019782] [2024-10-11 03:04:55,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 03:04:55,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:04:55,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:04:55,963 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:04:55,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 03:04:56,184 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 03:04:56,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:04:56,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-11 03:04:56,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:04:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8074 backedges. 4151 proven. 919 refuted. 0 times theorem prover too weak. 3004 trivial. 0 not checked. [2024-10-11 03:04:56,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:05:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8074 backedges. 615 proven. 1815 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2024-10-11 03:05:00,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608019782] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:05:00,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:05:00,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 27] total 44 [2024-10-11 03:05:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241212319] [2024-10-11 03:05:00,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:05:00,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-11 03:05:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:05:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-11 03:05:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1630, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 03:05:00,331 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 44 states, 43 states have (on average 3.255813953488372) internal successors, (140), 44 states have internal predecessors, (140), 38 states have call successors, (48), 2 states have call predecessors, (48), 15 states have return successors, (62), 23 states have call predecessors, (62), 38 states have call successors, (62) [2024-10-11 03:05:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:05:01,376 INFO L93 Difference]: Finished difference Result 406 states and 753 transitions. [2024-10-11 03:05:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 03:05:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.255813953488372) internal successors, (140), 44 states have internal predecessors, (140), 38 states have call successors, (48), 2 states have call predecessors, (48), 15 states have return successors, (62), 23 states have call predecessors, (62), 38 states have call successors, (62) Word has length 527 [2024-10-11 03:05:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:05:01,382 INFO L225 Difference]: With dead ends: 406 [2024-10-11 03:05:01,382 INFO L226 Difference]: Without dead ends: 250 [2024-10-11 03:05:01,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1175 SyntacticMatches, 13 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1714 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=720, Invalid=4110, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 03:05:01,387 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 114 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:05:01,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 619 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:05:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-10-11 03:05:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 208. [2024-10-11 03:05:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 147 states have (on average 1.129251700680272) internal successors, (166), 144 states have internal predecessors, (166), 42 states have call successors, (42), 33 states have call predecessors, (42), 18 states have return successors, (101), 30 states have call predecessors, (101), 42 states have call successors, (101) [2024-10-11 03:05:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 309 transitions. [2024-10-11 03:05:01,410 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 309 transitions. Word has length 527 [2024-10-11 03:05:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:05:01,410 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 309 transitions. [2024-10-11 03:05:01,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.255813953488372) internal successors, (140), 44 states have internal predecessors, (140), 38 states have call successors, (48), 2 states have call predecessors, (48), 15 states have return successors, (62), 23 states have call predecessors, (62), 38 states have call successors, (62) [2024-10-11 03:05:01,411 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 309 transitions. [2024-10-11 03:05:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-10-11 03:05:01,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:05:01,415 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 8, 8, 1, 1, 1, 1, 1, 1] [2024-10-11 03:05:01,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 03:05:01,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 03:05:01,619 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:05:01,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:05:01,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1624531253, now seen corresponding path program 5 times [2024-10-11 03:05:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:05:01,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141646517] [2024-10-11 03:05:01,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:05:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:05:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:05:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:02,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-11 03:05:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-11 03:05:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-11 03:05:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 835 proven. 1688 refuted. 0 times theorem prover too weak. 6890 trivial. 0 not checked. [2024-10-11 03:05:03,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:05:03,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141646517] [2024-10-11 03:05:03,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141646517] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:05:03,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892022297] [2024-10-11 03:05:03,834 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 03:05:03,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:05:03,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:05:03,836 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:05:03,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 03:05:04,174 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2024-10-11 03:05:04,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:05:04,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-11 03:05:04,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:05:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 1177 proven. 1149 refuted. 0 times theorem prover too weak. 7087 trivial. 0 not checked. [2024-10-11 03:05:04,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:05:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 1183 proven. 1167 refuted. 0 times theorem prover too weak. 7063 trivial. 0 not checked. [2024-10-11 03:05:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892022297] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:05:07,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:05:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 18, 25] total 49 [2024-10-11 03:05:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266932553] [2024-10-11 03:05:07,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:05:07,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-11 03:05:07,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:05:07,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-11 03:05:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=2038, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 03:05:07,399 INFO L87 Difference]: Start difference. First operand 208 states and 309 transitions. Second operand has 49 states, 48 states have (on average 2.8125) internal successors, (135), 49 states have internal predecessors, (135), 34 states have call successors, (46), 1 states have call predecessors, (46), 19 states have return successors, (60), 35 states have call predecessors, (60), 34 states have call successors, (60) [2024-10-11 03:05:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:05:08,696 INFO L93 Difference]: Finished difference Result 481 states and 889 transitions. [2024-10-11 03:05:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-10-11 03:05:08,697 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.8125) internal successors, (135), 49 states have internal predecessors, (135), 34 states have call successors, (46), 1 states have call predecessors, (46), 19 states have return successors, (60), 35 states have call predecessors, (60), 34 states have call successors, (60) Word has length 568 [2024-10-11 03:05:08,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:05:08,702 INFO L225 Difference]: With dead ends: 481 [2024-10-11 03:05:08,702 INFO L226 Difference]: Without dead ends: 271 [2024-10-11 03:05:08,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1363 GetRequests, 1268 SyntacticMatches, 12 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2651 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=996, Invalid=6144, Unknown=0, NotChecked=0, Total=7140 [2024-10-11 03:05:08,708 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 172 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:05:08,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 713 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 03:05:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-11 03:05:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 223. [2024-10-11 03:05:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 158 states have (on average 1.0949367088607596) internal successors, (173), 153 states have internal predecessors, (173), 45 states have call successors, (45), 36 states have call predecessors, (45), 19 states have return successors, (113), 33 states have call predecessors, (113), 45 states have call successors, (113) [2024-10-11 03:05:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 331 transitions. [2024-10-11 03:05:08,734 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 331 transitions. Word has length 568 [2024-10-11 03:05:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:05:08,735 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 331 transitions. [2024-10-11 03:05:08,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.8125) internal successors, (135), 49 states have internal predecessors, (135), 34 states have call successors, (46), 1 states have call predecessors, (46), 19 states have return successors, (60), 35 states have call predecessors, (60), 34 states have call successors, (60) [2024-10-11 03:05:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 331 transitions. [2024-10-11 03:05:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-10-11 03:05:08,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:05:08,739 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1] [2024-10-11 03:05:08,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 03:05:08,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 03:05:08,939 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:05:08,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:05:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1278903223, now seen corresponding path program 6 times [2024-10-11 03:05:08,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:05:08,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789502595] [2024-10-11 03:05:08,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:05:08,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:05:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:12,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:05:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:14,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:14,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:15,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-11 03:05:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-11 03:05:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:16,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:17,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:17,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:17,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-10-11 03:05:17,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:05:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789502595] [2024-10-11 03:05:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789502595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:05:17,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5257114] [2024-10-11 03:05:17,033 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 03:05:17,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:05:17,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:05:17,035 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:05:17,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 03:05:17,373 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2024-10-11 03:05:17,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:05:17,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-10-11 03:05:17,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:05:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-10-11 03:05:18,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:05:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-10-11 03:05:20,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5257114] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:05:20,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:05:20,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-10-11 03:05:20,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078128101] [2024-10-11 03:05:20,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:05:20,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-11 03:05:20,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:05:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-11 03:05:20,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-10-11 03:05:20,236 INFO L87 Difference]: Start difference. First operand 223 states and 331 transitions. Second operand has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) [2024-10-11 03:05:20,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:05:20,868 INFO L93 Difference]: Finished difference Result 242 states and 368 transitions. [2024-10-11 03:05:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-11 03:05:20,869 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) Word has length 459 [2024-10-11 03:05:20,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:05:20,872 INFO L225 Difference]: With dead ends: 242 [2024-10-11 03:05:20,872 INFO L226 Difference]: Without dead ends: 238 [2024-10-11 03:05:20,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-10-11 03:05:20,874 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:05:20,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3014 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:05:20,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-10-11 03:05:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 231. [2024-10-11 03:05:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 163 states have (on average 1.0920245398773005) internal successors, (178), 158 states have internal predecessors, (178), 46 states have call successors, (46), 36 states have call predecessors, (46), 21 states have return successors, (122), 36 states have call predecessors, (122), 46 states have call successors, (122) [2024-10-11 03:05:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 346 transitions. [2024-10-11 03:05:20,895 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 346 transitions. Word has length 459 [2024-10-11 03:05:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:05:20,895 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 346 transitions. [2024-10-11 03:05:20,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) [2024-10-11 03:05:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 346 transitions. [2024-10-11 03:05:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-10-11 03:05:20,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:05:20,899 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 13, 10, 8, 6, 1, 1, 1, 1, 1, 1] [2024-10-11 03:05:20,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 03:05:21,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:05:21,099 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:05:21,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:05:21,101 INFO L85 PathProgramCache]: Analyzing trace with hash -159280504, now seen corresponding path program 7 times [2024-10-11 03:05:21,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:05:21,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641134309] [2024-10-11 03:05:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:05:21,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:05:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:05:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:21,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 03:05:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-11 03:05:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-10-11 03:05:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:05:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 03:05:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 03:05:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 03:05:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 03:05:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 03:05:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 412 proven. 1091 refuted. 0 times theorem prover too weak. 5758 trivial. 0 not checked. [2024-10-11 03:05:22,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:05:22,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641134309] [2024-10-11 03:05:22,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641134309] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:05:22,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376147000] [2024-10-11 03:05:22,231 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 03:05:22,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:05:22,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:05:22,233 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:05:22,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 03:05:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:05:22,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 03:05:22,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:05:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 291 proven. 1311 refuted. 0 times theorem prover too weak. 5659 trivial. 0 not checked. [2024-10-11 03:05:22,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:05:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 291 proven. 1351 refuted. 0 times theorem prover too weak. 5619 trivial. 0 not checked. [2024-10-11 03:05:26,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376147000] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:05:26,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:05:26,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 21] total 35 [2024-10-11 03:05:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038806561] [2024-10-11 03:05:26,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:05:26,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-11 03:05:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:05:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-11 03:05:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 03:05:26,160 INFO L87 Difference]: Start difference. First operand 231 states and 346 transitions. Second operand has 35 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 35 states have internal predecessors, (107), 28 states have call successors, (34), 1 states have call predecessors, (34), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) [2024-10-11 03:05:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:05:26,871 INFO L93 Difference]: Finished difference Result 482 states and 789 transitions. [2024-10-11 03:05:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 03:05:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 35 states have internal predecessors, (107), 28 states have call successors, (34), 1 states have call predecessors, (34), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) Word has length 500 [2024-10-11 03:05:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:05:26,873 INFO L225 Difference]: With dead ends: 482 [2024-10-11 03:05:26,873 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 03:05:26,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1119 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=363, Invalid=1893, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 03:05:26,878 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 61 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:05:26,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 596 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:05:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 03:05:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 03:05:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:05:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 03:05:26,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 500 [2024-10-11 03:05:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:05:26,881 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 03:05:26,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 35 states have internal predecessors, (107), 28 states have call successors, (34), 1 states have call predecessors, (34), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) [2024-10-11 03:05:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 03:05:26,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 03:05:26,884 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 03:05:26,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 03:05:27,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 03:05:27,089 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:05:27,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 03:05:32,530 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 03:05:32,549 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:05:32,566 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 03:05:32,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:05:32 BoogieIcfgContainer [2024-10-11 03:05:32,567 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 03:05:32,567 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 03:05:32,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 03:05:32,568 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 03:05:32,568 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:04:28" (3/4) ... [2024-10-11 03:05:32,570 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 03:05:32,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-10-11 03:05:32,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-10-11 03:05:32,577 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-11 03:05:32,577 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 03:05:32,577 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 03:05:32,577 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 03:05:32,659 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 03:05:32,660 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 03:05:32,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 03:05:32,660 INFO L158 Benchmark]: Toolchain (without parser) took 64909.24ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 99.2MB in the beginning and 988.7MB in the end (delta: -889.5MB). Peak memory consumption was 244.8MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,660 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 121.2MB in the end (delta: 155.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.62ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 87.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.09ms. Allocated memory is still 167.8MB. Free memory was 86.9MB in the beginning and 85.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 03:05:32,661 INFO L158 Benchmark]: Boogie Preprocessor took 42.86ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 84.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,661 INFO L158 Benchmark]: RCFGBuilder took 325.35ms. Allocated memory is still 167.8MB. Free memory was 84.0MB in the beginning and 129.7MB in the end (delta: -45.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,662 INFO L158 Benchmark]: TraceAbstraction took 64145.01ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 129.0MB in the beginning and 992.9MB in the end (delta: -863.9MB). Peak memory consumption was 787.4MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,662 INFO L158 Benchmark]: Witness Printer took 92.23ms. Allocated memory is still 1.3GB. Free memory was 992.9MB in the beginning and 988.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 03:05:32,663 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 121.2MB in the end (delta: 155.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.62ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 87.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.09ms. Allocated memory is still 167.8MB. Free memory was 86.9MB in the beginning and 85.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.86ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 84.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.35ms. Allocated memory is still 167.8MB. Free memory was 84.0MB in the beginning and 129.7MB in the end (delta: -45.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 64145.01ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 129.0MB in the beginning and 992.9MB in the end (delta: -863.9MB). Peak memory consumption was 787.4MB. Max. memory is 16.1GB. * Witness Printer took 92.23ms. Allocated memory is still 1.3GB. Free memory was 992.9MB in the beginning and 988.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.6s, OverallIterations: 16, TraceHistogramMax: 46, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 997 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 916 mSDsluCounter, 7654 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7122 mSDsCounter, 957 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9959 IncrementalHoareTripleChecker+Invalid, 10916 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 957 mSolverCounterUnsat, 532 mSDtfsCounter, 9959 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8995 GetRequests, 8366 SyntacticMatches, 81 SemanticMatches, 548 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7850 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=15, InterpolantAutomatonStates: 407, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 323 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 44.0s InterpolantComputationTime, 7443 NumberOfCodeBlocks, 7069 NumberOfCodeBlocksAsserted, 99 NumberOfCheckSat, 11111 ConstructedInterpolants, 0 QuantifiedInterpolants, 17153 SizeOfPredicates, 63 NumberOfNonLiveVariables, 7606 ConjunctsInSsa, 447 ConjunctsInUnsatCore, 44 InterpolantComputations, 2 PerfectInterpolantSequences, 119056/143892 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: ((((\result == 1) || (2 < n)) || (n < 1)) && (((\result == 0) || (n == 1)) || (2 < n))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: ((((\result == 0) || (n == 1)) || (2 < n)) && ((((n == 1) && (\result == 1)) || (n < 1)) || (2 < n))) RESULT: Ultimate proved your program to be correct! [2024-10-11 03:05:32,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE