./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_fillercodesize_ps-cn-50_file-34.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 56ab96e739c021e0a820f09f7d8df07ac4eb08fdb70334870660d3f078d5cedf --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 00:35:19,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 00:35:19,867 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 00:35:19,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 00:35:19,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 00:35:19,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 00:35:19,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 00:35:19,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 00:35:19,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 00:35:19,898 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 00:35:19,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 00:35:19,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 00:35:19,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 00:35:19,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 00:35:19,899 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 00:35:19,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 00:35:19,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 00:35:19,901 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 00:35:19,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 00:35:19,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 00:35:19,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 00:35:19,902 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 -> 56ab96e739c021e0a820f09f7d8df07ac4eb08fdb70334870660d3f078d5cedf [2025-03-17 00:35:20,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 00:35:20,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 00:35:20,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 00:35:20,173 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 00:35:20,174 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 00:35:20,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-34.i [2025-03-17 00:35:21,372 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2a472fd/b9b1dc54466a48b4bb33ae6ffaad25ba/FLAG80e151e02 [2025-03-17 00:35:21,674 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 00:35:21,674 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-34.i [2025-03-17 00:35:21,683 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2a472fd/b9b1dc54466a48b4bb33ae6ffaad25ba/FLAG80e151e02 [2025-03-17 00:35:21,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2a472fd/b9b1dc54466a48b4bb33ae6ffaad25ba [2025-03-17 00:35:21,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 00:35:21,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 00:35:21,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 00:35:21,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 00:35:21,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 00:35:21,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 12:35:21" (1/1) ... [2025-03-17 00:35:21,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3433b440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:21, skipping insertion in model container [2025-03-17 00:35:21,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 12:35:21" (1/1) ... [2025-03-17 00:35:21,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 00:35:21,844 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_fillercodesize_ps-cn-50_file-34.i[915,928] [2025-03-17 00:35:21,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 00:35:21,940 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 00:35:21,948 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_fillercodesize_ps-cn-50_file-34.i[915,928] [2025-03-17 00:35:21,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 00:35:22,012 INFO L204 MainTranslator]: Completed translation [2025-03-17 00:35:22,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22 WrapperNode [2025-03-17 00:35:22,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 00:35:22,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 00:35:22,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 00:35:22,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 00:35:22,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,079 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 263 [2025-03-17 00:35:22,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 00:35:22,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 00:35:22,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 00:35:22,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 00:35:22,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,120 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]. [2025-03-17 00:35:22,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,132 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 00:35:22,151 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 00:35:22,151 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 00:35:22,151 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 00:35:22,152 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (1/1) ... [2025-03-17 00:35:22,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 00:35:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 00:35:22,183 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) [2025-03-17 00:35:22,187 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 [2025-03-17 00:35:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 00:35:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 00:35:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 00:35:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 00:35:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 00:35:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 00:35:22,291 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 00:35:22,293 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 00:35:22,669 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L205: havoc property_#t~bitwise24#1;havoc property_#t~ite26#1;havoc property_#t~bitwise25#1;havoc property_#t~short27#1; [2025-03-17 00:35:22,705 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-03-17 00:35:22,705 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 00:35:22,723 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 00:35:22,724 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 00:35:22,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 12:35:22 BoogieIcfgContainer [2025-03-17 00:35:22,725 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 00:35:22,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 00:35:22,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 00:35:22,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 00:35:22,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 12:35:21" (1/3) ... [2025-03-17 00:35:22,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa83c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 12:35:22, skipping insertion in model container [2025-03-17 00:35:22,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 12:35:22" (2/3) ... [2025-03-17 00:35:22,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa83c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 12:35:22, skipping insertion in model container [2025-03-17 00:35:22,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 12:35:22" (3/3) ... [2025-03-17 00:35:22,734 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-34.i [2025-03-17 00:35:22,749 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 00:35:22,752 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-34.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 00:35:22,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 00:35:22,813 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;@24613375, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 00:35:22,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 00:35:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 72 states have internal predecessors, (106), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 00:35:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-17 00:35:22,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:35:22,831 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:35:22,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:35:22,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:35:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -106226883, now seen corresponding path program 1 times [2025-03-17 00:35:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:35:22,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276731714] [2025-03-17 00:35:22,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:35:22,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-17 00:35:22,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-17 00:35:22,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:22,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2025-03-17 00:35:23,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:35:23,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276731714] [2025-03-17 00:35:23,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276731714] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 00:35:23,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158085488] [2025-03-17 00:35:23,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:23,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 00:35:23,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 00:35:23,175 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) [2025-03-17 00:35:23,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 00:35:23,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-17 00:35:23,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-17 00:35:23,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:23,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:23,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 00:35:23,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 00:35:23,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2025-03-17 00:35:23,364 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 00:35:23,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158085488] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:35:23,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 00:35:23,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 00:35:23,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086182717] [2025-03-17 00:35:23,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:35:23,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 00:35:23,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:35:23,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 00:35:23,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 00:35:23,390 INFO L87 Difference]: Start difference. First operand has 107 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 72 states have internal predecessors, (106), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2025-03-17 00:35:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:35:23,432 INFO L93 Difference]: Finished difference Result 211 states and 375 transitions. [2025-03-17 00:35:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 00:35:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 209 [2025-03-17 00:35:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:35:23,439 INFO L225 Difference]: With dead ends: 211 [2025-03-17 00:35:23,439 INFO L226 Difference]: Without dead ends: 105 [2025-03-17 00:35:23,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 00:35:23,444 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 00:35:23,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 00:35:23,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-17 00:35:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-17 00:35:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 70 states have (on average 1.457142857142857) internal successors, (102), 70 states have internal predecessors, (102), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-17 00:35:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 168 transitions. [2025-03-17 00:35:23,478 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 168 transitions. Word has length 209 [2025-03-17 00:35:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:35:23,478 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 168 transitions. [2025-03-17 00:35:23,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2025-03-17 00:35:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 168 transitions. [2025-03-17 00:35:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-17 00:35:23,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:35:23,483 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:35:23,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 00:35:23,684 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 [2025-03-17 00:35:23,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:35:23,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:35:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash 526827066, now seen corresponding path program 1 times [2025-03-17 00:35:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:35:23,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317317136] [2025-03-17 00:35:23,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:23,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:35:23,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-17 00:35:23,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-17 00:35:23,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:23,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:35:24,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:35:24,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317317136] [2025-03-17 00:35:24,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317317136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:35:24,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:35:24,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 00:35:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878515482] [2025-03-17 00:35:24,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:35:24,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 00:35:24,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:35:24,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 00:35:24,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:35:24,214 INFO L87 Difference]: Start difference. First operand 105 states and 168 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:35:24,477 INFO L93 Difference]: Finished difference Result 343 states and 547 transitions. [2025-03-17 00:35:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 00:35:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 209 [2025-03-17 00:35:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:35:24,482 INFO L225 Difference]: With dead ends: 343 [2025-03-17 00:35:24,484 INFO L226 Difference]: Without dead ends: 239 [2025-03-17 00:35:24,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 00:35:24,486 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 168 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 00:35:24,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 512 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 00:35:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-03-17 00:35:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 209. [2025-03-17 00:35:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 140 states have (on average 1.45) internal successors, (203), 140 states have internal predecessors, (203), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2025-03-17 00:35:24,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 335 transitions. [2025-03-17 00:35:24,533 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 335 transitions. Word has length 209 [2025-03-17 00:35:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:35:24,534 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 335 transitions. [2025-03-17 00:35:24,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:24,534 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 335 transitions. [2025-03-17 00:35:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-17 00:35:24,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:35:24,536 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:35:24,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 00:35:24,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:35:24,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:35:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1411661215, now seen corresponding path program 1 times [2025-03-17 00:35:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:35:24,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020032677] [2025-03-17 00:35:24,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:24,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:35:24,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-17 00:35:24,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-17 00:35:24,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:24,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:35:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:35:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020032677] [2025-03-17 00:35:24,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020032677] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:35:24,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:35:24,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 00:35:24,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999045618] [2025-03-17 00:35:24,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:35:24,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 00:35:24,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:35:24,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 00:35:24,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 00:35:24,837 INFO L87 Difference]: Start difference. First operand 209 states and 335 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:35:25,168 INFO L93 Difference]: Finished difference Result 620 states and 992 transitions. [2025-03-17 00:35:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 00:35:25,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 210 [2025-03-17 00:35:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:35:25,172 INFO L225 Difference]: With dead ends: 620 [2025-03-17 00:35:25,172 INFO L226 Difference]: Without dead ends: 412 [2025-03-17 00:35:25,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 00:35:25,174 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 193 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 00:35:25,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 643 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 00:35:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-03-17 00:35:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 213. [2025-03-17 00:35:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 144 states have (on average 1.4375) internal successors, (207), 144 states have internal predecessors, (207), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2025-03-17 00:35:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 339 transitions. [2025-03-17 00:35:25,233 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 339 transitions. Word has length 210 [2025-03-17 00:35:25,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:35:25,234 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 339 transitions. [2025-03-17 00:35:25,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:25,234 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 339 transitions. [2025-03-17 00:35:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:35:25,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:35:25,238 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:35:25,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 00:35:25,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:35:25,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:35:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash -749690057, now seen corresponding path program 1 times [2025-03-17 00:35:25,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:35:25,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63017380] [2025-03-17 00:35:25,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:35:25,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:35:25,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:35:25,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:25,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:35:26,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:35:26,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63017380] [2025-03-17 00:35:26,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63017380] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:35:26,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:35:26,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 00:35:26,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465654034] [2025-03-17 00:35:26,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:35:26,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 00:35:26,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:35:26,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 00:35:26,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 00:35:26,970 INFO L87 Difference]: Start difference. First operand 213 states and 339 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:27,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:35:27,398 INFO L93 Difference]: Finished difference Result 626 states and 983 transitions. [2025-03-17 00:35:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 00:35:27,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2025-03-17 00:35:27,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:35:27,403 INFO L225 Difference]: With dead ends: 626 [2025-03-17 00:35:27,404 INFO L226 Difference]: Without dead ends: 414 [2025-03-17 00:35:27,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 00:35:27,405 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 220 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 00:35:27,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 574 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 00:35:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-03-17 00:35:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 300. [2025-03-17 00:35:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 197 states have (on average 1.4263959390862944) internal successors, (281), 197 states have internal predecessors, (281), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2025-03-17 00:35:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 479 transitions. [2025-03-17 00:35:27,451 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 479 transitions. Word has length 211 [2025-03-17 00:35:27,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:35:27,451 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 479 transitions. [2025-03-17 00:35:27,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:35:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 479 transitions. [2025-03-17 00:35:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:35:27,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:35:27,456 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:35:27,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 00:35:27,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:35:27,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:35:27,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1995702546, now seen corresponding path program 1 times [2025-03-17 00:35:27,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:35:27,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283613109] [2025-03-17 00:35:27,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:35:27,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:35:27,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:35:27,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:35:27,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:35:27,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:35:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:35:58,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:35:58,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283613109] [2025-03-17 00:35:58,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283613109] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:35:58,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:35:58,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 00:35:58,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588485148] [2025-03-17 00:35:58,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:35:58,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 00:35:58,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:35:58,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 00:35:58,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-03-17 00:35:58,959 INFO L87 Difference]: Start difference. First operand 300 states and 479 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:00,315 INFO L93 Difference]: Finished difference Result 760 states and 1167 transitions. [2025-03-17 00:36:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 00:36:00,316 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2025-03-17 00:36:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:00,319 INFO L225 Difference]: With dead ends: 760 [2025-03-17 00:36:00,320 INFO L226 Difference]: Without dead ends: 548 [2025-03-17 00:36:00,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2025-03-17 00:36:00,322 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 466 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:00,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 946 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 00:36:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-03-17 00:36:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 387. [2025-03-17 00:36:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 272 states have (on average 1.4154411764705883) internal successors, (385), 274 states have internal predecessors, (385), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 603 transitions. [2025-03-17 00:36:00,358 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 603 transitions. Word has length 211 [2025-03-17 00:36:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:00,359 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 603 transitions. [2025-03-17 00:36:00,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 603 transitions. [2025-03-17 00:36:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:36:00,361 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:00,361 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:00,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 00:36:00,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:00,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1411761069, now seen corresponding path program 1 times [2025-03-17 00:36:00,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:00,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42138339] [2025-03-17 00:36:00,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:00,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:00,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:36:00,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:36:00,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:00,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:36:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:36:02,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:36:02,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42138339] [2025-03-17 00:36:02,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42138339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:36:02,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:36:02,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 00:36:02,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526748807] [2025-03-17 00:36:02,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:36:02,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 00:36:02,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:36:02,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 00:36:02,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 00:36:02,137 INFO L87 Difference]: Start difference. First operand 387 states and 603 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:03,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:03,104 INFO L93 Difference]: Finished difference Result 1013 states and 1535 transitions. [2025-03-17 00:36:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 00:36:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2025-03-17 00:36:03,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:03,109 INFO L225 Difference]: With dead ends: 1013 [2025-03-17 00:36:03,109 INFO L226 Difference]: Without dead ends: 718 [2025-03-17 00:36:03,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2025-03-17 00:36:03,110 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 427 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:03,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 660 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 00:36:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2025-03-17 00:36:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 438. [2025-03-17 00:36:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 323 states have (on average 1.411764705882353) internal successors, (456), 325 states have internal predecessors, (456), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 674 transitions. [2025-03-17 00:36:03,147 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 674 transitions. Word has length 211 [2025-03-17 00:36:03,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:03,147 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 674 transitions. [2025-03-17 00:36:03,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 674 transitions. [2025-03-17 00:36:03,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:36:03,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:03,150 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:03,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 00:36:03,150 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:03,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:03,151 INFO L85 PathProgramCache]: Analyzing trace with hash 188248083, now seen corresponding path program 1 times [2025-03-17 00:36:03,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:03,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692932144] [2025-03-17 00:36:03,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:03,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:03,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:36:03,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:36:03,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:03,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:36:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:36:04,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:36:04,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692932144] [2025-03-17 00:36:04,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692932144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:36:04,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:36:04,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 00:36:04,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17455437] [2025-03-17 00:36:04,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:36:04,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 00:36:04,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:36:04,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 00:36:04,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-17 00:36:04,380 INFO L87 Difference]: Start difference. First operand 438 states and 674 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-03-17 00:36:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:05,495 INFO L93 Difference]: Finished difference Result 1124 states and 1682 transitions. [2025-03-17 00:36:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 00:36:05,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 211 [2025-03-17 00:36:05,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:05,500 INFO L225 Difference]: With dead ends: 1124 [2025-03-17 00:36:05,500 INFO L226 Difference]: Without dead ends: 782 [2025-03-17 00:36:05,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2025-03-17 00:36:05,502 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 409 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:05,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 883 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 00:36:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2025-03-17 00:36:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 612. [2025-03-17 00:36:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 497 states have (on average 1.4265593561368208) internal successors, (709), 499 states have internal predecessors, (709), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 927 transitions. [2025-03-17 00:36:05,546 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 927 transitions. Word has length 211 [2025-03-17 00:36:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:05,546 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 927 transitions. [2025-03-17 00:36:05,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2025-03-17 00:36:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 927 transitions. [2025-03-17 00:36:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:36:05,552 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:05,552 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:05,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 00:36:05,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:05,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:05,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1255248682, now seen corresponding path program 1 times [2025-03-17 00:36:05,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:05,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538474998] [2025-03-17 00:36:05,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:05,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:36:05,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:36:05,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:05,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:36:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:36:05,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:36:05,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538474998] [2025-03-17 00:36:05,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538474998] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:36:05,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:36:05,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 00:36:05,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592378792] [2025-03-17 00:36:05,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:36:05,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 00:36:05,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:36:05,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 00:36:05,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 00:36:05,824 INFO L87 Difference]: Start difference. First operand 612 states and 927 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:06,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:06,067 INFO L93 Difference]: Finished difference Result 1019 states and 1546 transitions. [2025-03-17 00:36:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 00:36:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2025-03-17 00:36:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:06,071 INFO L225 Difference]: With dead ends: 1019 [2025-03-17 00:36:06,071 INFO L226 Difference]: Without dead ends: 616 [2025-03-17 00:36:06,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 00:36:06,072 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 120 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:06,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 433 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 00:36:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2025-03-17 00:36:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 562. [2025-03-17 00:36:06,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 447 states have (on average 1.395973154362416) internal successors, (624), 449 states have internal predecessors, (624), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 842 transitions. [2025-03-17 00:36:06,112 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 842 transitions. Word has length 211 [2025-03-17 00:36:06,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:06,112 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 842 transitions. [2025-03-17 00:36:06,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:06,113 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 842 transitions. [2025-03-17 00:36:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 00:36:06,116 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:06,116 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:06,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 00:36:06,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:06,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:06,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1485168369, now seen corresponding path program 1 times [2025-03-17 00:36:06,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:06,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820649495] [2025-03-17 00:36:06,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:06,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:06,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-17 00:36:06,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 00:36:06,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:06,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:36:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:36:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:36:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820649495] [2025-03-17 00:36:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820649495] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:36:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:36:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-17 00:36:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702389548] [2025-03-17 00:36:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:36:10,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 00:36:10,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:36:10,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 00:36:10,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-17 00:36:10,607 INFO L87 Difference]: Start difference. First operand 562 states and 842 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:11,931 INFO L93 Difference]: Finished difference Result 1020 states and 1515 transitions. [2025-03-17 00:36:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 00:36:11,932 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2025-03-17 00:36:11,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:11,935 INFO L225 Difference]: With dead ends: 1020 [2025-03-17 00:36:11,935 INFO L226 Difference]: Without dead ends: 647 [2025-03-17 00:36:11,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2025-03-17 00:36:11,939 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 340 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:11,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1075 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 00:36:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2025-03-17 00:36:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 570. [2025-03-17 00:36:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 455 states have (on average 1.3912087912087912) internal successors, (633), 457 states have internal predecessors, (633), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 851 transitions. [2025-03-17 00:36:11,978 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 851 transitions. Word has length 211 [2025-03-17 00:36:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:11,978 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 851 transitions. [2025-03-17 00:36:11,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 851 transitions. [2025-03-17 00:36:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2025-03-17 00:36:11,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:11,980 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:11,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 00:36:11,980 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:11,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 810446840, now seen corresponding path program 1 times [2025-03-17 00:36:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:11,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058281368] [2025-03-17 00:36:11,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:11,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-17 00:36:12,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-17 00:36:12,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:12,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 00:36:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2025-03-17 00:36:43,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 00:36:43,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058281368] [2025-03-17 00:36:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058281368] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 00:36:43,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 00:36:43,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-17 00:36:43,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147146433] [2025-03-17 00:36:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 00:36:43,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 00:36:43,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 00:36:43,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 00:36:43,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2025-03-17 00:36:43,858 INFO L87 Difference]: Start difference. First operand 570 states and 851 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:46,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 00:36:46,386 INFO L93 Difference]: Finished difference Result 990 states and 1478 transitions. [2025-03-17 00:36:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 00:36:46,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212 [2025-03-17 00:36:46,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 00:36:46,390 INFO L225 Difference]: With dead ends: 990 [2025-03-17 00:36:46,390 INFO L226 Difference]: Without dead ends: 695 [2025-03-17 00:36:46,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2025-03-17 00:36:46,391 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 274 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-17 00:36:46,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1410 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-17 00:36:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2025-03-17 00:36:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 562. [2025-03-17 00:36:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 447 states have (on average 1.3937360178970917) internal successors, (623), 449 states have internal predecessors, (623), 109 states have call successors, (109), 5 states have call predecessors, (109), 5 states have return successors, (109), 107 states have call predecessors, (109), 109 states have call successors, (109) [2025-03-17 00:36:46,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 841 transitions. [2025-03-17 00:36:46,427 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 841 transitions. Word has length 212 [2025-03-17 00:36:46,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 00:36:46,427 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 841 transitions. [2025-03-17 00:36:46,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2025-03-17 00:36:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 841 transitions. [2025-03-17 00:36:46,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2025-03-17 00:36:46,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 00:36:46,430 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 00:36:46,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 00:36:46,430 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 00:36:46,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 00:36:46,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2107367126, now seen corresponding path program 1 times [2025-03-17 00:36:46,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 00:36:46,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560162440] [2025-03-17 00:36:46,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 00:36:46,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 00:36:46,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-17 00:36:46,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-17 00:36:46,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 00:36:46,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat