./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 41ccaa2c6661b48b1b98db087da596eaf2b2fd6514e04327794ac67bb63454b3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 00:53:51,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 00:53:51,922 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 00:53:51,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 00:53:51,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 00:53:51,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 00:53:51,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 00:53:51,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 00:53:51,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 00:53:51,955 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 00:53:51,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 00:53:51,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 00:53:51,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 00:53:51,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 00:53:51,956 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 00:53:51,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 00:53:51,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 00:53:51,958 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 00:53:51,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:53:51,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 00:53:51,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 00:53:51,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 00:53:51,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 00:53:51,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 00:53:51,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 00:53:51,960 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-jdk21/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 -> 41ccaa2c6661b48b1b98db087da596eaf2b2fd6514e04327794ac67bb63454b3 [2025-02-06 00:53:52,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 00:53:52,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 00:53:52,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 00:53:52,268 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 00:53:52,269 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 00:53:52,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i [2025-02-06 00:53:53,672 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27facebfd/470fd78c969841c29260af96c08efbc7/FLAG3b0009b99 [2025-02-06 00:53:53,995 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 00:53:53,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i [2025-02-06 00:53:54,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27facebfd/470fd78c969841c29260af96c08efbc7/FLAG3b0009b99 [2025-02-06 00:53:54,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27facebfd/470fd78c969841c29260af96c08efbc7 [2025-02-06 00:53:54,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 00:53:54,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 00:53:54,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 00:53:54,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 00:53:54,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 00:53:54,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b97dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54, skipping insertion in model container [2025-02-06 00:53:54,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 00:53:54,196 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i[916,929] [2025-02-06 00:53:54,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:53:54,273 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 00:53:54,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-92.i[916,929] [2025-02-06 00:53:54,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:53:54,352 INFO L204 MainTranslator]: Completed translation [2025-02-06 00:53:54,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54 WrapperNode [2025-02-06 00:53:54,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 00:53:54,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 00:53:54,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 00:53:54,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 00:53:54,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,413 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 312 [2025-02-06 00:53:54,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 00:53:54,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 00:53:54,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 00:53:54,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 00:53:54,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,462 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]. [2025-02-06 00:53:54,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 00:53:54,501 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 00:53:54,501 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 00:53:54,502 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 00:53:54,502 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (1/1) ... [2025-02-06 00:53:54,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:53:54,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:53:54,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 00:53:54,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 00:53:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 00:53:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 00:53:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 00:53:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 00:53:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 00:53:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 00:53:54,654 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 00:53:54,655 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 00:53:55,149 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L194: havoc property_#t~bitwise22#1;havoc property_#t~short23#1;havoc property_#t~ite27#1;havoc property_#t~bitwise24#1;havoc property_#t~ite26#1;havoc property_#t~bitwise25#1;havoc property_#t~short28#1;havoc property_#t~bitwise29#1;havoc property_#t~short30#1;havoc property_#t~ite32#1;havoc property_#t~bitwise31#1;havoc property_#t~short33#1; [2025-02-06 00:53:55,197 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2025-02-06 00:53:55,197 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 00:53:55,223 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 00:53:55,226 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 00:53:55,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:53:55 BoogieIcfgContainer [2025-02-06 00:53:55,227 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 00:53:55,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 00:53:55,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 00:53:55,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 00:53:55,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:53:54" (1/3) ... [2025-02-06 00:53:55,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c43921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:53:55, skipping insertion in model container [2025-02-06 00:53:55,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:53:54" (2/3) ... [2025-02-06 00:53:55,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c43921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:53:55, skipping insertion in model container [2025-02-06 00:53:55,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:53:55" (3/3) ... [2025-02-06 00:53:55,238 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-92.i [2025-02-06 00:53:55,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 00:53:55,253 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-1loop_file-92.i that has 2 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 00:53:55,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 00:53:55,322 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;@3bb7e061, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 00:53:55,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 00:53:55,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-06 00:53:55,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-06 00:53:55,342 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:53:55,343 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:53:55,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:53:55,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:53:55,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1282591107, now seen corresponding path program 1 times [2025-02-06 00:53:55,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:53:55,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934574556] [2025-02-06 00:53:55,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:53:55,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:53:55,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 00:53:55,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 00:53:55,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:53:55,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:53:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2025-02-06 00:53:55,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:53:55,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934574556] [2025-02-06 00:53:55,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934574556] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:53:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90774110] [2025-02-06 00:53:55,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:53:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:53:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:53:55,728 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 00:53:55,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 00:53:55,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 00:53:55,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 00:53:55,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:53:55,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:53:55,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 00:53:55,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:53:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2025-02-06 00:53:55,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 00:53:55,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90774110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:53:55,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 00:53:55,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 00:53:55,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021744325] [2025-02-06 00:53:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:53:55,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 00:53:55,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:53:55,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 00:53:55,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:53:55,976 INFO L87 Difference]: Start difference. First operand has 126 states, 101 states have (on average 1.495049504950495) internal successors, (151), 102 states have internal predecessors, (151), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 00:53:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:53:56,031 INFO L93 Difference]: Finished difference Result 249 states and 409 transitions. [2025-02-06 00:53:56,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 00:53:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 159 [2025-02-06 00:53:56,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:53:56,042 INFO L225 Difference]: With dead ends: 249 [2025-02-06 00:53:56,043 INFO L226 Difference]: Without dead ends: 123 [2025-02-06 00:53:56,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:53:56,050 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 00:53:56,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 00:53:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-02-06 00:53:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2025-02-06 00:53:56,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 99 states have internal predecessors, (146), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-06 00:53:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 190 transitions. [2025-02-06 00:53:56,104 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 190 transitions. Word has length 159 [2025-02-06 00:53:56,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:53:56,105 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 190 transitions. [2025-02-06 00:53:56,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 00:53:56,106 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 190 transitions. [2025-02-06 00:53:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-06 00:53:56,110 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:53:56,111 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:53:56,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 00:53:56,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 00:53:56,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:53:56,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:53:56,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1010784005, now seen corresponding path program 1 times [2025-02-06 00:53:56,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:53:56,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158627941] [2025-02-06 00:53:56,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:53:56,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:53:56,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-06 00:53:56,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-06 00:53:56,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:53:56,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:53:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:53:56,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:53:56,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158627941] [2025-02-06 00:53:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158627941] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:53:56,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:53:56,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 00:53:56,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122193503] [2025-02-06 00:53:56,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:53:56,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 00:53:56,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:53:56,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 00:53:56,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 00:53:56,913 INFO L87 Difference]: Start difference. First operand 123 states and 190 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:53:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:53:57,061 INFO L93 Difference]: Finished difference Result 363 states and 564 transitions. [2025-02-06 00:53:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 00:53:57,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 159 [2025-02-06 00:53:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:53:57,067 INFO L225 Difference]: With dead ends: 363 [2025-02-06 00:53:57,067 INFO L226 Difference]: Without dead ends: 243 [2025-02-06 00:53:57,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 00:53:57,071 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 135 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 00:53:57,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 403 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 00:53:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2025-02-06 00:53:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2025-02-06 00:53:57,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 194 states have (on average 1.4742268041237114) internal successors, (286), 194 states have internal predecessors, (286), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 00:53:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 374 transitions. [2025-02-06 00:53:57,128 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 374 transitions. Word has length 159 [2025-02-06 00:53:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:53:57,128 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 374 transitions. [2025-02-06 00:53:57,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:53:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 374 transitions. [2025-02-06 00:53:57,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 00:53:57,134 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:53:57,134 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:53:57,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 00:53:57,134 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:53:57,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:53:57,135 INFO L85 PathProgramCache]: Analyzing trace with hash 168322799, now seen corresponding path program 1 times [2025-02-06 00:53:57,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:53:57,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743335281] [2025-02-06 00:53:57,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:53:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:53:57,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 00:53:57,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 00:53:57,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:53:57,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:53:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:53:58,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:53:58,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743335281] [2025-02-06 00:53:58,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743335281] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:53:58,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:53:58,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 00:53:58,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514273954] [2025-02-06 00:53:58,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:53:58,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 00:53:58,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:53:58,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 00:53:58,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 00:53:58,014 INFO L87 Difference]: Start difference. First operand 241 states and 374 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:53:59,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:53:59,223 INFO L93 Difference]: Finished difference Result 1170 states and 1802 transitions. [2025-02-06 00:53:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 00:53:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2025-02-06 00:53:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:53:59,236 INFO L225 Difference]: With dead ends: 1170 [2025-02-06 00:53:59,237 INFO L226 Difference]: Without dead ends: 1050 [2025-02-06 00:53:59,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-02-06 00:53:59,242 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 1354 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 00:53:59,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 949 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 00:53:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2025-02-06 00:53:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 623. [2025-02-06 00:53:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 509 states have (on average 1.4852652259332024) internal successors, (756), 510 states have internal predecessors, (756), 108 states have call successors, (108), 5 states have call predecessors, (108), 5 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2025-02-06 00:53:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 972 transitions. [2025-02-06 00:53:59,362 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 972 transitions. Word has length 160 [2025-02-06 00:53:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:53:59,362 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 972 transitions. [2025-02-06 00:53:59,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:53:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 972 transitions. [2025-02-06 00:53:59,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 00:53:59,365 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:53:59,366 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:53:59,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 00:53:59,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:53:59,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:53:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1606052237, now seen corresponding path program 1 times [2025-02-06 00:53:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:53:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979493005] [2025-02-06 00:53:59,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:53:59,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:53:59,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 00:53:59,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 00:53:59,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:53:59,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:54:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:54:22,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:54:22,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979493005] [2025-02-06 00:54:22,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979493005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:54:22,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:54:22,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 00:54:22,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98040058] [2025-02-06 00:54:22,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:54:22,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 00:54:22,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:54:22,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 00:54:22,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 00:54:22,039 INFO L87 Difference]: Start difference. First operand 623 states and 972 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:54:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:54:27,195 INFO L93 Difference]: Finished difference Result 1980 states and 3068 transitions. [2025-02-06 00:54:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 00:54:27,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2025-02-06 00:54:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:54:27,208 INFO L225 Difference]: With dead ends: 1980 [2025-02-06 00:54:27,209 INFO L226 Difference]: Without dead ends: 1360 [2025-02-06 00:54:27,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-02-06 00:54:27,212 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 307 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 00:54:27,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 709 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 00:54:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2025-02-06 00:54:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 830. [2025-02-06 00:54:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 716 states have (on average 1.5223463687150838) internal successors, (1090), 717 states have internal predecessors, (1090), 108 states have call successors, (108), 5 states have call predecessors, (108), 5 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2025-02-06 00:54:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1306 transitions. [2025-02-06 00:54:27,297 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1306 transitions. Word has length 160 [2025-02-06 00:54:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:54:27,299 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1306 transitions. [2025-02-06 00:54:27,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:54:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1306 transitions. [2025-02-06 00:54:27,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 00:54:27,302 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:54:27,302 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:54:27,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 00:54:27,302 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:54:27,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:54:27,303 INFO L85 PathProgramCache]: Analyzing trace with hash 650858770, now seen corresponding path program 1 times [2025-02-06 00:54:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:54:27,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75232198] [2025-02-06 00:54:27,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:54:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:54:27,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 00:54:27,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 00:54:27,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:54:27,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:54:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:54:31,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:54:31,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75232198] [2025-02-06 00:54:31,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75232198] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:54:31,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:54:31,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 00:54:31,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186821312] [2025-02-06 00:54:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:54:31,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 00:54:31,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:54:31,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 00:54:31,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 00:54:31,552 INFO L87 Difference]: Start difference. First operand 830 states and 1306 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:54:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:54:34,263 INFO L93 Difference]: Finished difference Result 2329 states and 3626 transitions. [2025-02-06 00:54:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 00:54:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2025-02-06 00:54:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:54:34,274 INFO L225 Difference]: With dead ends: 2329 [2025-02-06 00:54:34,274 INFO L226 Difference]: Without dead ends: 1502 [2025-02-06 00:54:34,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 00:54:34,281 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 394 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 00:54:34,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 717 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 00:54:34,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2025-02-06 00:54:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 830. [2025-02-06 00:54:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 716 states have (on average 1.5223463687150838) internal successors, (1090), 717 states have internal predecessors, (1090), 108 states have call successors, (108), 5 states have call predecessors, (108), 5 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2025-02-06 00:54:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1306 transitions. [2025-02-06 00:54:34,357 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1306 transitions. Word has length 160 [2025-02-06 00:54:34,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:54:34,358 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1306 transitions. [2025-02-06 00:54:34,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:54:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1306 transitions. [2025-02-06 00:54:34,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 00:54:34,361 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:54:34,362 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:54:34,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 00:54:34,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:54:34,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:54:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash -142433038, now seen corresponding path program 1 times [2025-02-06 00:54:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:54:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704960350] [2025-02-06 00:54:34,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:54:34,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:54:34,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 00:54:34,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 00:54:34,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:54:34,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:54:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:54:58,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:54:58,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704960350] [2025-02-06 00:54:58,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704960350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:54:58,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:54:58,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 00:54:58,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191491630] [2025-02-06 00:54:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:54:58,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 00:54:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:54:58,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 00:54:58,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 00:54:58,026 INFO L87 Difference]: Start difference. First operand 830 states and 1306 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:55:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:55:01,901 INFO L93 Difference]: Finished difference Result 2329 states and 3626 transitions. [2025-02-06 00:55:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 00:55:01,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2025-02-06 00:55:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:55:01,912 INFO L225 Difference]: With dead ends: 2329 [2025-02-06 00:55:01,912 INFO L226 Difference]: Without dead ends: 1502 [2025-02-06 00:55:01,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-06 00:55:01,916 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 410 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-06 00:55:01,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 651 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-06 00:55:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2025-02-06 00:55:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 835. [2025-02-06 00:55:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 721 states have (on average 1.5256588072122053) internal successors, (1100), 722 states have internal predecessors, (1100), 108 states have call successors, (108), 5 states have call predecessors, (108), 5 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2025-02-06 00:55:01,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1316 transitions. [2025-02-06 00:55:01,968 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1316 transitions. Word has length 160 [2025-02-06 00:55:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:55:01,968 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1316 transitions. [2025-02-06 00:55:01,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:55:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1316 transitions. [2025-02-06 00:55:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 00:55:01,970 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:55:01,971 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:55:01,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 00:55:01,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:55:01,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:55:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2114477969, now seen corresponding path program 1 times [2025-02-06 00:55:01,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:55:01,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329517820] [2025-02-06 00:55:01,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:55:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:55:01,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 00:55:02,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 00:55:02,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:55:02,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:55:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 00:55:02,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:55:02,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329517820] [2025-02-06 00:55:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329517820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:55:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:55:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 00:55:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788840163] [2025-02-06 00:55:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:55:02,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 00:55:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:55:02,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 00:55:02,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 00:55:02,156 INFO L87 Difference]: Start difference. First operand 835 states and 1316 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:55:02,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:55:02,501 INFO L93 Difference]: Finished difference Result 3479 states and 5486 transitions. [2025-02-06 00:55:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 00:55:02,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2025-02-06 00:55:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:55:02,515 INFO L225 Difference]: With dead ends: 3479 [2025-02-06 00:55:02,516 INFO L226 Difference]: Without dead ends: 2647 [2025-02-06 00:55:02,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 00:55:02,520 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 464 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 00:55:02,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 889 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 00:55:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2025-02-06 00:55:02,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2366. [2025-02-06 00:55:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2099 states have (on average 1.5331110052405907) internal successors, (3218), 2106 states have internal predecessors, (3218), 251 states have call successors, (251), 15 states have call predecessors, (251), 15 states have return successors, (251), 244 states have call predecessors, (251), 251 states have call successors, (251) [2025-02-06 00:55:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3720 transitions. [2025-02-06 00:55:02,655 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3720 transitions. Word has length 160 [2025-02-06 00:55:02,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:55:02,656 INFO L471 AbstractCegarLoop]: Abstraction has 2366 states and 3720 transitions. [2025-02-06 00:55:02,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2025-02-06 00:55:02,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3720 transitions. [2025-02-06 00:55:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-06 00:55:02,660 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:55:02,660 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:55:02,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 00:55:02,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:55:02,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:55:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1065238425, now seen corresponding path program 1 times [2025-02-06 00:55:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:55:02,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506466446] [2025-02-06 00:55:02,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:55:02,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:55:02,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-06 00:55:02,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-06 00:55:02,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:55:02,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat