./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_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_operatoramount_amount100_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 467c473d600edcbefe1a4e0dc983d0a7ed730d51b6e346c519387c039af0e27a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 12:21:12,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 12:21:13,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 12:21:13,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 12:21:13,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 12:21:13,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 12:21:13,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 12:21:13,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 12:21:13,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 12:21:13,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 12:21:13,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 12:21:13,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 12:21:13,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 12:21:13,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 12:21:13,088 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 12:21:13,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 12:21:13,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 12:21:13,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 12:21:13,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 12:21:13,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 12:21:13,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 12:21:13,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 12:21:13,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 12:21:13,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 12:21:13,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 12:21:13,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 12:21:13,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 12:21:13,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 12:21:13,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 12:21:13,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 12:21:13,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 12:21:13,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 12:21:13,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 12:21:13,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 12:21:13,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 12:21:13,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 12:21:13,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 12:21:13,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 12:21:13,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 12:21:13,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 12:21:13,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 12:21:13,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 12:21:13,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467c473d600edcbefe1a4e0dc983d0a7ed730d51b6e346c519387c039af0e27a [2024-10-14 12:21:13,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 12:21:13,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 12:21:13,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 12:21:13,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 12:21:13,423 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 12:21:13,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-64.i [2024-10-14 12:21:14,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 12:21:15,277 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 12:21:15,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-64.i [2024-10-14 12:21:15,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d43f0fd/e2e49a6e7dc248b98790c9d92082cd80/FLAG20e219aa5 [2024-10-14 12:21:15,316 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d43f0fd/e2e49a6e7dc248b98790c9d92082cd80 [2024-10-14 12:21:15,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 12:21:15,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 12:21:15,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 12:21:15,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 12:21:15,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 12:21:15,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73265149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15, skipping insertion in model container [2024-10-14 12:21:15,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 12:21:15,530 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-64.i[916,929] [2024-10-14 12:21:15,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 12:21:15,650 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 12:21:15,667 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-64.i[916,929] [2024-10-14 12:21:15,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 12:21:15,731 INFO L204 MainTranslator]: Completed translation [2024-10-14 12:21:15,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15 WrapperNode [2024-10-14 12:21:15,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 12:21:15,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 12:21:15,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 12:21:15,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 12:21:15,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,811 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 275 [2024-10-14 12:21:15,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 12:21:15,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 12:21:15,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 12:21:15,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 12:21:15,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,863 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 12:21:15,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 12:21:15,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 12:21:15,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 12:21:15,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 12:21:15,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (1/1) ... [2024-10-14 12:21:15,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 12:21:15,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 12:21:15,946 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 12:21:15,953 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 12:21:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 12:21:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 12:21:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 12:21:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 12:21:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 12:21:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 12:21:16,119 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 12:21:16,121 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 12:21:16,647 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-10-14 12:21:16,647 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 12:21:16,690 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 12:21:16,690 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 12:21:16,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:21:16 BoogieIcfgContainer [2024-10-14 12:21:16,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 12:21:16,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 12:21:16,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 12:21:16,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 12:21:16,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:21:15" (1/3) ... [2024-10-14 12:21:16,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2fde86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:21:16, skipping insertion in model container [2024-10-14 12:21:16,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:21:15" (2/3) ... [2024-10-14 12:21:16,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2fde86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:21:16, skipping insertion in model container [2024-10-14 12:21:16,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:21:16" (3/3) ... [2024-10-14 12:21:16,703 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-64.i [2024-10-14 12:21:16,728 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 12:21:16,728 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 12:21:16,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 12:21:16,823 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;@25ad3a45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 12:21:16,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 12:21:16,829 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 12:21:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 12:21:16,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 12:21:16,845 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 12:21:16,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 12:21:16,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 12:21:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1470071257, now seen corresponding path program 1 times [2024-10-14 12:21:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 12:21:16,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090719195] [2024-10-14 12:21:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 12:21:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 12:21:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 12:21:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 12:21:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 12:21:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 12:21:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 12:21:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 12:21:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 12:21:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 12:21:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 12:21:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 12:21:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 12:21:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 12:21:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 12:21:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 12:21:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 12:21:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 12:21:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 12:21:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 12:21:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 12:21:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 12:21:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 12:21:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 12:21:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 12:21:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 12:21:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 12:21:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 12:21:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 12:21:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 12:21:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:17,653 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 12:21:17,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 12:21:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090719195] [2024-10-14 12:21:17,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090719195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 12:21:17,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 12:21:17,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 12:21:17,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144871620] [2024-10-14 12:21:17,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 12:21:17,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 12:21:17,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 12:21:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 12:21:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 12:21:17,699 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 12:21:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 12:21:17,765 INFO L93 Difference]: Finished difference Result 205 states and 357 transitions. [2024-10-14 12:21:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 12:21:17,768 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 12:21:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 12:21:17,779 INFO L225 Difference]: With dead ends: 205 [2024-10-14 12:21:17,779 INFO L226 Difference]: Without dead ends: 102 [2024-10-14 12:21:17,786 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 12:21:17,792 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 12:21:17,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 12:21:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-14 12:21:17,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-14 12:21:17,852 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 12:21:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 160 transitions. [2024-10-14 12:21:17,860 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 160 transitions. Word has length 185 [2024-10-14 12:21:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 12:21:17,861 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 160 transitions. [2024-10-14 12:21:17,861 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 12:21:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 160 transitions. [2024-10-14 12:21:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 12:21:17,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 12:21:17,870 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 12:21:17,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 12:21:17,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 12:21:17,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 12:21:17,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1912845707, now seen corresponding path program 1 times [2024-10-14 12:21:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 12:21:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290667712] [2024-10-14 12:21:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:17,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 12:21:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 12:21:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 12:21:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 12:21:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 12:21:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 12:21:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 12:21:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 12:21:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 12:21:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 12:21:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 12:21:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 12:21:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 12:21:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 12:21:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 12:21:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 12:21:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 12:21:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 12:21:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 12:21:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 12:21:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 12:21:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 12:21:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 12:21:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 12:21:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 12:21:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 12:21:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 12:21:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 12:21:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 12:21:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 12:21:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:29,574 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 12:21:29,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 12:21:29,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290667712] [2024-10-14 12:21:29,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290667712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 12:21:29,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 12:21:29,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 12:21:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115246945] [2024-10-14 12:21:29,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 12:21:29,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 12:21:29,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 12:21:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 12:21:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-14 12:21:29,580 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 12:21:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 12:21:34,903 INFO L93 Difference]: Finished difference Result 528 states and 813 transitions. [2024-10-14 12:21:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 12:21:34,904 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 12:21:34,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 12:21:34,912 INFO L225 Difference]: With dead ends: 528 [2024-10-14 12:21:34,912 INFO L226 Difference]: Without dead ends: 427 [2024-10-14 12:21:34,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 12:21:34,916 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 1377 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 12:21:34,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1126 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 12:21:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-10-14 12:21:34,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 177. [2024-10-14 12:21:34,973 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 12:21:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 275 transitions. [2024-10-14 12:21:34,979 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 275 transitions. Word has length 185 [2024-10-14 12:21:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 12:21:34,980 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 275 transitions. [2024-10-14 12:21:34,980 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 12:21:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 275 transitions. [2024-10-14 12:21:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 12:21:34,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 12:21:34,987 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 12:21:34,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 12:21:34,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 12:21:34,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 12:21:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1232787337, now seen corresponding path program 1 times [2024-10-14 12:21:34,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 12:21:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032087663] [2024-10-14 12:21:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:34,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 12:21:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 12:21:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 12:21:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 12:21:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 12:21:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 12:21:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 12:21:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 12:21:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 12:21:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 12:21:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 12:21:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 12:21:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 12:21:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 12:21:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 12:21:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 12:21:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 12:21:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 12:21:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 12:21:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 12:21:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 12:21:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 12:21:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 12:21:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 12:21:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 12:21:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 12:21:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 12:21:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 12:21:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 12:21:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 12:21:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 72 proven. 90 refuted. 0 times theorem prover too weak. 1462 trivial. 0 not checked. [2024-10-14 12:21:37,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 12:21:37,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032087663] [2024-10-14 12:21:37,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032087663] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 12:21:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521174371] [2024-10-14 12:21:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:37,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 12:21:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 12:21:37,874 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 12:21:37,876 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 12:21:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:38,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 12:21:38,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 12:21:38,338 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 12:21:38,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 12:21:38,674 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 12:21:38,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521174371] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 12:21:38,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 12:21:38,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 6, 6] total 23 [2024-10-14 12:21:38,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113935185] [2024-10-14 12:21:38,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 12:21:38,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 12:21:38,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 12:21:38,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 12:21:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-10-14 12:21:38,681 INFO L87 Difference]: Start difference. First operand 177 states and 275 transitions. Second operand has 23 states, 21 states have (on average 4.476190476190476) internal successors, (94), 22 states have internal predecessors, (94), 8 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 7 states have call predecessors, (65), 8 states have call successors, (65) [2024-10-14 12:21:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 12:21:41,601 INFO L93 Difference]: Finished difference Result 416 states and 631 transitions. [2024-10-14 12:21:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 12:21:41,602 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 4.476190476190476) internal successors, (94), 22 states have internal predecessors, (94), 8 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 7 states have call predecessors, (65), 8 states have call successors, (65) Word has length 185 [2024-10-14 12:21:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 12:21:41,608 INFO L225 Difference]: With dead ends: 416 [2024-10-14 12:21:41,608 INFO L226 Difference]: Without dead ends: 301 [2024-10-14 12:21:41,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=491, Invalid=2265, Unknown=0, NotChecked=0, Total=2756 [2024-10-14 12:21:41,612 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1344 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 12:21:41,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1376 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 12:21:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-10-14 12:21:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 181. [2024-10-14 12:21:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 114 states have internal predecessors, (142), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 12:21:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 258 transitions. [2024-10-14 12:21:41,659 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 258 transitions. Word has length 185 [2024-10-14 12:21:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 12:21:41,660 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 258 transitions. [2024-10-14 12:21:41,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 4.476190476190476) internal successors, (94), 22 states have internal predecessors, (94), 8 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 7 states have call predecessors, (65), 8 states have call successors, (65) [2024-10-14 12:21:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 258 transitions. [2024-10-14 12:21:41,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 12:21:41,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 12:21:41,663 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 12:21:41,689 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 12:21:41,864 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 12:21:41,865 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 12:21:41,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 12:21:41,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1359660446, now seen corresponding path program 1 times [2024-10-14 12:21:41,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 12:21:41,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996076401] [2024-10-14 12:21:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:41,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 12:21:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 12:21:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 12:21:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 12:21:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 12:21:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 12:21:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 12:21:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 12:21:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 12:21:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 12:21:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 12:21:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 12:21:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 12:21:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 12:21:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 12:21:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:42,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 12:21:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 12:21:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 12:21:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 12:21:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 12:21:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 12:21:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 12:21:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 12:21:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 12:21:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 12:21:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 12:21:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 12:21:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 12:21:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 12:21:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 12:21:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,095 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 12:21:43,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 12:21:43,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996076401] [2024-10-14 12:21:43,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996076401] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 12:21:43,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550692701] [2024-10-14 12:21:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 12:21:43,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 12:21:43,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 12:21:43,101 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 12:21:43,102 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 12:21:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 12:21:43,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-14 12:21:43,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 12:21:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 855 proven. 252 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2024-10-14 12:21:46,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 12:21:48,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550692701] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 12:21:48,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 12:21:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 25] total 36 [2024-10-14 12:21:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442452339] [2024-10-14 12:21:48,561 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 12:21:48,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-14 12:21:48,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 12:21:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-14 12:21:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=1987, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 12:21:48,565 INFO L87 Difference]: Start difference. First operand 181 states and 258 transitions. Second operand has 36 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 33 states have internal predecessors, (109), 10 states have call successors, (58), 8 states have call predecessors, (58), 10 states have return successors, (58), 9 states have call predecessors, (58), 10 states have call successors, (58) [2024-10-14 12:22:26,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]