./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_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 e5d7e0b0c5d9476a8ff19ede4042aea6220e122ea32375ea4848a6627ab63cfc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 12:18:13,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 12:18:13,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 12:18:13,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 12:18:13,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 12:18:13,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 12:18:13,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 12:18:13,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 12:18:13,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 12:18:13,190 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 12:18:13,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 12:18:13,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 12:18:13,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 12:18:13,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 12:18:13,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 12:18:13,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 12:18:13,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 12:18:13,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 12:18:13,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 12:18:13,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 12:18:13,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> e5d7e0b0c5d9476a8ff19ede4042aea6220e122ea32375ea4848a6627ab63cfc [2025-03-08 12:18:13,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 12:18:13,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 12:18:13,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 12:18:13,412 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 12:18:13,413 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 12:18:13,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i [2025-03-08 12:18:14,515 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e304381f/46e5ddd6204349da9135f31c7111e3c2/FLAG0be5d31ed [2025-03-08 12:18:14,794 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 12:18:14,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i [2025-03-08 12:18:14,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e304381f/46e5ddd6204349da9135f31c7111e3c2/FLAG0be5d31ed [2025-03-08 12:18:14,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e304381f/46e5ddd6204349da9135f31c7111e3c2 [2025-03-08 12:18:14,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 12:18:14,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 12:18:14,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 12:18:14,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 12:18:14,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 12:18:14,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 12:18:14" (1/1) ... [2025-03-08 12:18:14,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2913649e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:14, skipping insertion in model container [2025-03-08 12:18:14,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 12:18:14" (1/1) ... [2025-03-08 12:18:14,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 12:18:14,945 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i[919,932] [2025-03-08 12:18:14,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 12:18:15,014 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 12:18:15,022 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i[919,932] [2025-03-08 12:18:15,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 12:18:15,071 INFO L204 MainTranslator]: Completed translation [2025-03-08 12:18:15,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15 WrapperNode [2025-03-08 12:18:15,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 12:18:15,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 12:18:15,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 12:18:15,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 12:18:15,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,117 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 212 [2025-03-08 12:18:15,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 12:18:15,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 12:18:15,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 12:18:15,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 12:18:15,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,144 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]. [2025-03-08 12:18:15,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 12:18:15,164 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 12:18:15,164 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 12:18:15,164 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 12:18:15,165 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (1/1) ... [2025-03-08 12:18:15,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 12:18:15,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 12:18:15,190 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) [2025-03-08 12:18:15,193 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 [2025-03-08 12:18:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 12:18:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 12:18:15,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 12:18:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 12:18:15,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 12:18:15,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 12:18:15,261 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 12:18:15,262 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 12:18:15,516 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L177: havoc property_#t~bitwise20#1;havoc property_#t~short21#1; [2025-03-08 12:18:15,543 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-03-08 12:18:15,543 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 12:18:15,555 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 12:18:15,556 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 12:18:15,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 12:18:15 BoogieIcfgContainer [2025-03-08 12:18:15,556 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 12:18:15,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 12:18:15,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 12:18:15,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 12:18:15,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 12:18:14" (1/3) ... [2025-03-08 12:18:15,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caf2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 12:18:15, skipping insertion in model container [2025-03-08 12:18:15,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 12:18:15" (2/3) ... [2025-03-08 12:18:15,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caf2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 12:18:15, skipping insertion in model container [2025-03-08 12:18:15,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 12:18:15" (3/3) ... [2025-03-08 12:18:15,564 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i [2025-03-08 12:18:15,573 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 12:18:15,574 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-64.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 12:18:15,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 12:18:15,621 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;@2044504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 12:18:15,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 12:18:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-08 12:18:15,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:15,634 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:15,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:15,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1166212259, now seen corresponding path program 1 times [2025-03-08 12:18:15,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:15,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526765919] [2025-03-08 12:18:15,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:15,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:15,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:15,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:15,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2025-03-08 12:18:15,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 12:18:15,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526765919] [2025-03-08 12:18:15,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526765919] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 12:18:15,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408096059] [2025-03-08 12:18:15,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:15,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 12:18:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 12:18:15,891 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) [2025-03-08 12:18:15,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 12:18:15,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:16,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:16,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:16,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:16,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 12:18:16,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 12:18:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2025-03-08 12:18:16,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 12:18:16,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408096059] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 12:18:16,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 12:18:16,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 12:18:16,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067612340] [2025-03-08 12:18:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 12:18:16,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 12:18:16,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 12:18:16,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 12:18:16,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 12:18:16,108 INFO L87 Difference]: Start difference. First operand has 89 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-08 12:18:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 12:18:16,131 INFO L93 Difference]: Finished difference Result 172 states and 299 transitions. [2025-03-08 12:18:16,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 12:18:16,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 183 [2025-03-08 12:18:16,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 12:18:16,138 INFO L225 Difference]: With dead ends: 172 [2025-03-08 12:18:16,138 INFO L226 Difference]: Without dead ends: 86 [2025-03-08 12:18:16,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 12:18:16,142 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 12:18:16,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 12:18:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-03-08 12:18:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-03-08 12:18:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.375) internal successors, (77), 56 states have internal predecessors, (77), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:16,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 133 transitions. [2025-03-08 12:18:16,170 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 133 transitions. Word has length 183 [2025-03-08 12:18:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 12:18:16,170 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 133 transitions. [2025-03-08 12:18:16,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-08 12:18:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 133 transitions. [2025-03-08 12:18:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-08 12:18:16,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:16,173 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:16,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 12:18:16,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 12:18:16,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:16,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:16,374 INFO L85 PathProgramCache]: Analyzing trace with hash 586088965, now seen corresponding path program 1 times [2025-03-08 12:18:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088952912] [2025-03-08 12:18:16,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:16,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:16,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:16,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:16,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2025-03-08 12:18:16,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 12:18:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088952912] [2025-03-08 12:18:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088952912] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 12:18:16,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 12:18:16,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 12:18:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881911690] [2025-03-08 12:18:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 12:18:16,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 12:18:16,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 12:18:16,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 12:18:16,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 12:18:16,808 INFO L87 Difference]: Start difference. First operand 86 states and 133 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 12:18:17,072 INFO L93 Difference]: Finished difference Result 261 states and 400 transitions. [2025-03-08 12:18:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 12:18:17,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2025-03-08 12:18:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 12:18:17,074 INFO L225 Difference]: With dead ends: 261 [2025-03-08 12:18:17,075 INFO L226 Difference]: Without dead ends: 178 [2025-03-08 12:18:17,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 12:18:17,076 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 140 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 12:18:17,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 580 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 12:18:17,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-08 12:18:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 93. [2025-03-08 12:18:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 143 transitions. [2025-03-08 12:18:17,094 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 143 transitions. Word has length 183 [2025-03-08 12:18:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 12:18:17,095 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 143 transitions. [2025-03-08 12:18:17,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2025-03-08 12:18:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-08 12:18:17,100 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:17,100 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:17,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 12:18:17,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:17,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1210862394, now seen corresponding path program 1 times [2025-03-08 12:18:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448567584] [2025-03-08 12:18:17,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:17,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:17,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:17,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:17,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2025-03-08 12:18:17,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 12:18:17,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448567584] [2025-03-08 12:18:17,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448567584] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 12:18:17,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 12:18:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 12:18:17,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777005600] [2025-03-08 12:18:17,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 12:18:17,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 12:18:17,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 12:18:17,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 12:18:17,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 12:18:17,313 INFO L87 Difference]: Start difference. First operand 93 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 12:18:17,478 INFO L93 Difference]: Finished difference Result 268 states and 409 transitions. [2025-03-08 12:18:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 12:18:17,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2025-03-08 12:18:17,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 12:18:17,480 INFO L225 Difference]: With dead ends: 268 [2025-03-08 12:18:17,480 INFO L226 Difference]: Without dead ends: 178 [2025-03-08 12:18:17,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 12:18:17,481 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 129 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 12:18:17,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 740 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 12:18:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-08 12:18:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 93. [2025-03-08 12:18:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 143 transitions. [2025-03-08 12:18:17,491 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 143 transitions. Word has length 183 [2025-03-08 12:18:17,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 12:18:17,492 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 143 transitions. [2025-03-08 12:18:17,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2025-03-08 12:18:17,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-08 12:18:17,493 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:17,493 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:17,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 12:18:17,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:17,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -380715097, now seen corresponding path program 1 times [2025-03-08 12:18:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65036520] [2025-03-08 12:18:17,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:17,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:17,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:17,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:17,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2025-03-08 12:18:17,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 12:18:17,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65036520] [2025-03-08 12:18:17,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65036520] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 12:18:17,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 12:18:17,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 12:18:17,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489161553] [2025-03-08 12:18:17,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 12:18:17,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 12:18:17,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 12:18:17,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 12:18:17,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 12:18:17,691 INFO L87 Difference]: Start difference. First operand 93 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 12:18:17,880 INFO L93 Difference]: Finished difference Result 316 states and 484 transitions. [2025-03-08 12:18:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 12:18:17,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2025-03-08 12:18:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 12:18:17,883 INFO L225 Difference]: With dead ends: 316 [2025-03-08 12:18:17,883 INFO L226 Difference]: Without dead ends: 226 [2025-03-08 12:18:17,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 12:18:17,886 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 217 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 12:18:17,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 567 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 12:18:17,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-08 12:18:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 93. [2025-03-08 12:18:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 143 transitions. [2025-03-08 12:18:17,906 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 143 transitions. Word has length 183 [2025-03-08 12:18:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 12:18:17,907 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 143 transitions. [2025-03-08 12:18:17,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2025-03-08 12:18:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-08 12:18:17,909 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:17,909 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:17,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 12:18:17,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:17,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1416236262, now seen corresponding path program 1 times [2025-03-08 12:18:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473116417] [2025-03-08 12:18:17,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:17,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-08 12:18:17,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-08 12:18:17,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:17,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 12:18:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2025-03-08 12:18:18,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 12:18:18,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473116417] [2025-03-08 12:18:18,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473116417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 12:18:18,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 12:18:18,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 12:18:18,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356294496] [2025-03-08 12:18:18,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 12:18:18,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 12:18:18,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 12:18:18,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 12:18:18,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 12:18:18,110 INFO L87 Difference]: Start difference. First operand 93 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:18,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 12:18:18,284 INFO L93 Difference]: Finished difference Result 316 states and 483 transitions. [2025-03-08 12:18:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 12:18:18,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2025-03-08 12:18:18,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 12:18:18,287 INFO L225 Difference]: With dead ends: 316 [2025-03-08 12:18:18,288 INFO L226 Difference]: Without dead ends: 226 [2025-03-08 12:18:18,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 12:18:18,290 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 206 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 12:18:18,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 596 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 12:18:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-08 12:18:18,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 86. [2025-03-08 12:18:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-08 12:18:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 132 transitions. [2025-03-08 12:18:18,307 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 132 transitions. Word has length 183 [2025-03-08 12:18:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 12:18:18,307 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 132 transitions. [2025-03-08 12:18:18,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2025-03-08 12:18:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 132 transitions. [2025-03-08 12:18:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-03-08 12:18:18,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 12:18:18,309 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 12:18:18,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 12:18:18,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 12:18:18,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 12:18:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash -235619645, now seen corresponding path program 1 times [2025-03-08 12:18:18,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 12:18:18,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720209007] [2025-03-08 12:18:18,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 12:18:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 12:18:18,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-03-08 12:18:18,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-03-08 12:18:18,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 12:18:18,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat