./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae786c3c70eeefdeb96a7f93e449d2ef503e68ebbd1835f721b2db059c4befb9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:16:32,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:16:32,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:16:32,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:16:32,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:16:32,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:16:32,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:16:32,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:16:32,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:16:32,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:16:32,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:16:32,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:16:32,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:16:32,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:16:32,937 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:16:32,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:16:32,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:16:32,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:16:32,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:16:32,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:16:32,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:16:32,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:16:32,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:16:32,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:16:32,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:16:32,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:16:32,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:16:32,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:16:32,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:16:32,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:16:32,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:16:32,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:16:32,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:16:32,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:16:32,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:16:32,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:16:32,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:16:32,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:16:32,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:16:32,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:16:32,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:16:32,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:16:32,946 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae786c3c70eeefdeb96a7f93e449d2ef503e68ebbd1835f721b2db059c4befb9 [2024-10-14 11:16:33,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:16:33,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:16:33,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:16:33,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:16:33,268 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:16:33,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-10-14 11:16:34,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:16:35,020 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:16:35,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-10-14 11:16:35,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe50973b8/85c492a9f02b41bdaef6a5aea22d6185/FLAG724386c9a [2024-10-14 11:16:35,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe50973b8/85c492a9f02b41bdaef6a5aea22d6185 [2024-10-14 11:16:35,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:16:35,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:16:35,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:16:35,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:16:35,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:16:35,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2769e75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35, skipping insertion in model container [2024-10-14 11:16:35,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,113 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:16:35,286 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i[916,929] [2024-10-14 11:16:35,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:16:35,415 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:16:35,426 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i[916,929] [2024-10-14 11:16:35,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:16:35,540 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:16:35,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35 WrapperNode [2024-10-14 11:16:35,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:16:35,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:16:35,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:16:35,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:16:35,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,614 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 280 [2024-10-14 11:16:35,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:16:35,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:16:35,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:16:35,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:16:35,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,659 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:16:35,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:16:35,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:16:35,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:16:35,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:16:35,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (1/1) ... [2024-10-14 11:16:35,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:16:35,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:16:35,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:16:35,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:16:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:16:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:16:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:16:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:16:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:16:35,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:16:35,875 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:16:35,878 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:16:36,379 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-10-14 11:16:36,379 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:16:36,426 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:16:36,426 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:16:36,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:16:36 BoogieIcfgContainer [2024-10-14 11:16:36,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:16:36,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:16:36,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:16:36,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:16:36,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:16:35" (1/3) ... [2024-10-14 11:16:36,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa43fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:16:36, skipping insertion in model container [2024-10-14 11:16:36,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:16:35" (2/3) ... [2024-10-14 11:16:36,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa43fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:16:36, skipping insertion in model container [2024-10-14 11:16:36,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:16:36" (3/3) ... [2024-10-14 11:16:36,436 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-10-14 11:16:36,452 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:16:36,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:16:36,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:16:36,532 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;@5db7e35a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:16:36,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:16:36,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 73 states have internal predecessors, (107), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-14 11:16:36,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 11:16:36,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:36,551 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:36,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:36,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1710183288, now seen corresponding path program 1 times [2024-10-14 11:16:36,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:36,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359405038] [2024-10-14 11:16:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:36,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:36,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:16:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:36,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:16:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 11:16:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 11:16:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 11:16:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:16:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:16:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:16:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 11:16:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 11:16:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 11:16:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:16:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 11:16:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 11:16:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 11:16:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 11:16:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 11:16:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 11:16:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 11:16:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 11:16:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 11:16:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 11:16:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 11:16:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 11:16:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 11:16:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 11:16:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 11:16:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 11:16:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-14 11:16:37,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:37,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359405038] [2024-10-14 11:16:37,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359405038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:37,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:37,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:16:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127780493] [2024-10-14 11:16:37,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:37,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:16:37,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:16:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:16:37,200 INFO L87 Difference]: Start difference. First operand has 104 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 73 states have internal predecessors, (107), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 11:16:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:37,256 INFO L93 Difference]: Finished difference Result 207 states and 358 transitions. [2024-10-14 11:16:37,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:16:37,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) Word has length 185 [2024-10-14 11:16:37,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:37,273 INFO L225 Difference]: With dead ends: 207 [2024-10-14 11:16:37,274 INFO L226 Difference]: Without dead ends: 102 [2024-10-14 11:16:37,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:16:37,284 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:37,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:16:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-14 11:16:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-14 11:16:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.4366197183098592) internal successors, (102), 71 states have internal predecessors, (102), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-14 11:16:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 160 transitions. [2024-10-14 11:16:37,353 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 160 transitions. Word has length 185 [2024-10-14 11:16:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:37,354 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 160 transitions. [2024-10-14 11:16:37,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-10-14 11:16:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 160 transitions. [2024-10-14 11:16:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 11:16:37,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:37,362 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:37,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:16:37,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:37,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1267408838, now seen corresponding path program 1 times [2024-10-14 11:16:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768776197] [2024-10-14 11:16:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:37,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:16:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:16:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 11:16:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 11:16:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 11:16:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:16:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:16:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:16:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 11:16:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 11:16:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 11:16:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:16:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 11:16:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 11:16:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 11:16:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 11:16:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 11:16:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 11:16:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 11:16:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 11:16:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 11:16:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 11:16:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 11:16:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 11:16:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 11:16:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 11:16:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 11:16:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 11:16:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-10-14 11:16:48,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:48,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768776197] [2024-10-14 11:16:48,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768776197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:16:48,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:16:48,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 11:16:48,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500322529] [2024-10-14 11:16:48,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:16:48,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 11:16:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:48,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 11:16:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 11:16:48,801 INFO L87 Difference]: Start difference. First operand 102 states and 160 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-10-14 11:16:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:53,971 INFO L93 Difference]: Finished difference Result 574 states and 886 transitions. [2024-10-14 11:16:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 11:16:53,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 185 [2024-10-14 11:16:53,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:53,977 INFO L225 Difference]: With dead ends: 574 [2024-10-14 11:16:53,977 INFO L226 Difference]: Without dead ends: 473 [2024-10-14 11:16:53,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 11:16:53,980 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1548 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:53,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 1420 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 11:16:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-10-14 11:16:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 177. [2024-10-14 11:16:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 11:16:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 275 transitions. [2024-10-14 11:16:54,024 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 275 transitions. Word has length 185 [2024-10-14 11:16:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:54,025 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 275 transitions. [2024-10-14 11:16:54,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-10-14 11:16:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 275 transitions. [2024-10-14 11:16:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 11:16:54,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:54,029 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:54,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:16:54,029 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:54,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:54,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1947467208, now seen corresponding path program 1 times [2024-10-14 11:16:54,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:54,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699446213] [2024-10-14 11:16:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:16:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:16:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:16:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 11:16:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 11:16:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 11:16:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:16:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:16:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:16:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 11:16:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 11:16:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 11:16:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:16:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 11:16:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 11:16:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 11:16:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 11:16:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 11:16:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 11:16:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 11:16:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 11:16:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 11:16:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 11:16:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 11:16:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 11:16:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 11:16:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 11:16:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 11:16:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 11:16:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-10-14 11:16:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:16:55,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699446213] [2024-10-14 11:16:55,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699446213] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:16:55,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200178663] [2024-10-14 11:16:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:55,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:16:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:16:55,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:16:55,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 11:16:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:16:55,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 11:16:55,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:16:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 600 proven. 18 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2024-10-14 11:16:55,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:16:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 66 proven. 18 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-10-14 11:16:56,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200178663] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 11:16:56,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 11:16:56,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 6] total 21 [2024-10-14 11:16:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164144047] [2024-10-14 11:16:56,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 11:16:56,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 11:16:56,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:16:56,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 11:16:56,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-10-14 11:16:56,046 INFO L87 Difference]: Start difference. First operand 177 states and 275 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2024-10-14 11:16:58,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:16:58,316 INFO L93 Difference]: Finished difference Result 433 states and 664 transitions. [2024-10-14 11:16:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-14 11:16:58,316 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) Word has length 185 [2024-10-14 11:16:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:16:58,319 INFO L225 Difference]: With dead ends: 433 [2024-10-14 11:16:58,320 INFO L226 Difference]: Without dead ends: 320 [2024-10-14 11:16:58,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=483, Invalid=1869, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 11:16:58,322 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 2199 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:16:58,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 759 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 11:16:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-14 11:16:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 169. [2024-10-14 11:16:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 105 states have internal predecessors, (133), 58 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 11:16:58,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 249 transitions. [2024-10-14 11:16:58,367 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 249 transitions. Word has length 185 [2024-10-14 11:16:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:16:58,368 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 249 transitions. [2024-10-14 11:16:58,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2024-10-14 11:16:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 249 transitions. [2024-10-14 11:16:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 11:16:58,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:16:58,372 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:16:58,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 11:16:58,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:16:58,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:16:58,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:16:58,574 INFO L85 PathProgramCache]: Analyzing trace with hash 858380753, now seen corresponding path program 1 times [2024-10-14 11:16:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:16:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994321798] [2024-10-14 11:16:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:16:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:16:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:17:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:17:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:17:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 11:17:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 11:17:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 11:17:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:17:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:17:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:17:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 11:17:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 11:17:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 11:17:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:17:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 11:17:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 11:17:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 11:17:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 11:17:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 11:17:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 11:17:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 11:17:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 11:17:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 11:17:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 11:17:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 11:17:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 11:17:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 11:17:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 11:17:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 11:17:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 11:17:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-10-14 11:17:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:17:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994321798] [2024-10-14 11:17:00,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994321798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730522733] [2024-10-14 11:17:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:17:00,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:17:00,438 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:17:00,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 11:17:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:00,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 11:17:00,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:17:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 861 proven. 168 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2024-10-14 11:17:02,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:17:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730522733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:04,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 11:17:04,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 32 [2024-10-14 11:17:04,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59568692] [2024-10-14 11:17:04,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 11:17:04,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 11:17:04,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:17:04,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 11:17:04,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1629, Unknown=0, NotChecked=0, Total=1892 [2024-10-14 11:17:04,718 INFO L87 Difference]: Start difference. First operand 169 states and 249 transitions. Second operand has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 9 states have call successors, (58), 6 states have call predecessors, (58), 8 states have return successors, (58), 8 states have call predecessors, (58), 9 states have call successors, (58) [2024-10-14 11:17:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:17:10,414 INFO L93 Difference]: Finished difference Result 623 states and 915 transitions. [2024-10-14 11:17:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-14 11:17:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 9 states have call successors, (58), 6 states have call predecessors, (58), 8 states have return successors, (58), 8 states have call predecessors, (58), 9 states have call successors, (58) Word has length 188 [2024-10-14 11:17:10,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:17:10,420 INFO L225 Difference]: With dead ends: 623 [2024-10-14 11:17:10,420 INFO L226 Difference]: Without dead ends: 518 [2024-10-14 11:17:10,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1422, Invalid=6768, Unknown=0, NotChecked=0, Total=8190 [2024-10-14 11:17:10,424 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1843 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:17:10,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 2236 Invalid, 3999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-14 11:17:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-10-14 11:17:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 368. [2024-10-14 11:17:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 258 states have (on average 1.3643410852713178) internal successors, (352), 260 states have internal predecessors, (352), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 11:17:10,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 544 transitions. [2024-10-14 11:17:10,501 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 544 transitions. Word has length 188 [2024-10-14 11:17:10,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:17:10,501 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 544 transitions. [2024-10-14 11:17:10,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 9 states have call successors, (58), 6 states have call predecessors, (58), 8 states have return successors, (58), 8 states have call predecessors, (58), 9 states have call successors, (58) [2024-10-14 11:17:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 544 transitions. [2024-10-14 11:17:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-10-14 11:17:10,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:17:10,505 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:17:10,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 11:17:10,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-14 11:17:10,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:17:10,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:17:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1562716111, now seen corresponding path program 1 times [2024-10-14 11:17:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:17:10,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895684636] [2024-10-14 11:17:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:17:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:11,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:17:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:17:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:17:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 11:17:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 11:17:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 11:17:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 11:17:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 11:17:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 11:17:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 11:17:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 11:17:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 11:17:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:17:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 11:17:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 11:17:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 11:17:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 11:17:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 11:17:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 11:17:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 11:17:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 11:17:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 11:17:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 11:17:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 11:17:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 11:17:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 11:17:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 11:17:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 11:17:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 11:17:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 105 proven. 129 refuted. 0 times theorem prover too weak. 1390 trivial. 0 not checked. [2024-10-14 11:17:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:17:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895684636] [2024-10-14 11:17:12,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895684636] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:17:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156078302] [2024-10-14 11:17:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:17:12,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:17:12,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:17:12,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:17:12,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 11:17:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:17:12,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-14 11:17:12,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:17:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 1124 proven. 186 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-14 11:17:23,835 INFO L311 TraceCheckSpWp]: Computing backward predicates...