./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c -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 19716c7655e34d197f46fa451b10ae0c8c502a032fb57ff83ff50da1b9e9fcc5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:15:01,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:15:01,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 16:15:01,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:15:01,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:15:01,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:15:01,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:15:01,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:15:01,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:15:01,820 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:15:01,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:15:01,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:15:01,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:15:01,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:15:01,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:15:01,821 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:15:01,822 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:15:01,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:15:01,822 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:15:01,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:15:01,823 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 -> 19716c7655e34d197f46fa451b10ae0c8c502a032fb57ff83ff50da1b9e9fcc5 [2025-03-03 16:15:02,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:15:02,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:15:02,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:15:02,067 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:15:02,067 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:15:02,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c [2025-03-03 16:15:03,202 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6531cb0/7c8c0d79f07d4445b1acbd15c853771c/FLAGfcaabdbdc [2025-03-03 16:15:03,654 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:15:03,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c [2025-03-03 16:15:03,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6531cb0/7c8c0d79f07d4445b1acbd15c853771c/FLAGfcaabdbdc [2025-03-03 16:15:03,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6531cb0/7c8c0d79f07d4445b1acbd15c853771c [2025-03-03 16:15:03,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:15:03,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:15:03,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:15:03,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:15:03,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:15:03,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:15:03" (1/1) ... [2025-03-03 16:15:03,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b657fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:03, skipping insertion in model container [2025-03-03 16:15:03,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:15:03" (1/1) ... [2025-03-03 16:15:03,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:15:04,112 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c[20463,20476] [2025-03-03 16:15:04,166 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c[28211,28224] [2025-03-03 16:15:04,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:15:04,518 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:15:04,551 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c[20463,20476] [2025-03-03 16:15:04,560 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c[28211,28224] [2025-03-03 16:15:04,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:15:04,816 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:15:04,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04 WrapperNode [2025-03-03 16:15:04,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:15:04,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:15:04,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:15:04,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:15:04,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:04,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,159 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5216 [2025-03-03 16:15:05,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:15:05,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:15:05,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:15:05,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:15:05,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,346 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]. [2025-03-03 16:15:05,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,420 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:15:05,520 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:15:05,520 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:15:05,520 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:15:05,521 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (1/1) ... [2025-03-03 16:15:05,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:15:05,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:15:05,547 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) [2025-03-03 16:15:05,552 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 [2025-03-03 16:15:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:15:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 16:15:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:15:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:15:05,659 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:15:05,660 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:15:09,089 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L5256: havoc calculate_output3_#t~ret48#1; [2025-03-03 16:15:09,090 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2287: havoc calculate_output_#t~ret46#1; [2025-03-03 16:15:09,090 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3766: havoc calculate_output2_#t~ret47#1; [2025-03-03 16:15:09,238 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2025-03-03 16:15:09,238 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:15:09,265 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:15:09,269 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:15:09,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:15:09 BoogieIcfgContainer [2025-03-03 16:15:09,270 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:15:09,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:15:09,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:15:09,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:15:09,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:15:03" (1/3) ... [2025-03-03 16:15:09,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24604c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:15:09, skipping insertion in model container [2025-03-03 16:15:09,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:15:04" (2/3) ... [2025-03-03 16:15:09,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24604c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:15:09, skipping insertion in model container [2025-03-03 16:15:09,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:15:09" (3/3) ... [2025-03-03 16:15:09,278 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c [2025-03-03 16:15:09,289 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:15:09,294 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label09.c that has 1 procedures, 929 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:15:09,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:15:09,371 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;@1877c777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:15:09,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:15:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 929 states, 926 states have (on average 1.9028077753779697) internal successors, (1762), 928 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-03 16:15:09,387 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:09,387 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:09,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:09,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1420392849, now seen corresponding path program 1 times [2025-03-03 16:15:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:09,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198928394] [2025-03-03 16:15:09,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:09,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:09,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-03 16:15:09,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-03 16:15:09,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:09,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198928394] [2025-03-03 16:15:09,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198928394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:09,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:09,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:15:09,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574385549] [2025-03-03 16:15:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:09,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 16:15:09,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:09,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 16:15:09,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:15:09,651 INFO L87 Difference]: Start difference. First operand has 929 states, 926 states have (on average 1.9028077753779697) internal successors, (1762), 928 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:09,709 INFO L93 Difference]: Finished difference Result 1802 states and 3416 transitions. [2025-03-03 16:15:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 16:15:09,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2025-03-03 16:15:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:09,728 INFO L225 Difference]: With dead ends: 1802 [2025-03-03 16:15:09,729 INFO L226 Difference]: Without dead ends: 864 [2025-03-03 16:15:09,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 16:15:09,739 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:09,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2025-03-03 16:15:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2025-03-03 16:15:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8932714617169373) internal successors, (1632), 863 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1632 transitions. [2025-03-03 16:15:09,811 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1632 transitions. Word has length 28 [2025-03-03 16:15:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:09,812 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1632 transitions. [2025-03-03 16:15:09,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1632 transitions. [2025-03-03 16:15:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-03 16:15:09,813 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:09,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:09,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 16:15:09,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:09,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:09,814 INFO L85 PathProgramCache]: Analyzing trace with hash 836518158, now seen corresponding path program 1 times [2025-03-03 16:15:09,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:09,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084606824] [2025-03-03 16:15:09,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:09,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:09,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-03 16:15:09,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-03 16:15:09,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:09,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:10,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:10,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084606824] [2025-03-03 16:15:10,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084606824] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:10,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:10,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 16:15:10,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090533151] [2025-03-03 16:15:10,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:10,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 16:15:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:10,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 16:15:10,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:15:10,021 INFO L87 Difference]: Start difference. First operand 864 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:10,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:10,140 INFO L93 Difference]: Finished difference Result 922 states and 1723 transitions. [2025-03-03 16:15:10,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 16:15:10,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2025-03-03 16:15:10,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:10,145 INFO L225 Difference]: With dead ends: 922 [2025-03-03 16:15:10,145 INFO L226 Difference]: Without dead ends: 864 [2025-03-03 16:15:10,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:15:10,146 INFO L435 NwaCegarLoop]: 1630 mSDtfsCounter, 0 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:10,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6465 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2025-03-03 16:15:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2025-03-03 16:15:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8352668213457077) internal successors, (1582), 863 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1582 transitions. [2025-03-03 16:15:10,166 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1582 transitions. Word has length 28 [2025-03-03 16:15:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:10,166 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1582 transitions. [2025-03-03 16:15:10,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1582 transitions. [2025-03-03 16:15:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-03 16:15:10,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:10,168 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:10,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 16:15:10,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:10,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:10,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1208291531, now seen corresponding path program 1 times [2025-03-03 16:15:10,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:10,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485046048] [2025-03-03 16:15:10,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:10,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:10,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-03 16:15:10,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-03 16:15:10,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:10,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:10,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:10,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485046048] [2025-03-03 16:15:10,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485046048] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:10,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:10,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:10,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689458880] [2025-03-03 16:15:10,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:10,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:15:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:10,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:15:10,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:15:10,375 INFO L87 Difference]: Start difference. First operand 864 states and 1582 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:15,279 INFO L93 Difference]: Finished difference Result 3119 states and 5891 transitions. [2025-03-03 16:15:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:15:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-03-03 16:15:15,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:15,288 INFO L225 Difference]: With dead ends: 3119 [2025-03-03 16:15:15,288 INFO L226 Difference]: Without dead ends: 2366 [2025-03-03 16:15:15,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:15:15,290 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 2465 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:15,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 836 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-03-03 16:15:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2025-03-03 16:15:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2025-03-03 16:15:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2364 states have (on average 1.5634517766497462) internal successors, (3696), 2365 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3696 transitions. [2025-03-03 16:15:15,327 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3696 transitions. Word has length 67 [2025-03-03 16:15:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:15,327 INFO L471 AbstractCegarLoop]: Abstraction has 2366 states and 3696 transitions. [2025-03-03 16:15:15,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3696 transitions. [2025-03-03 16:15:15,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-03 16:15:15,329 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:15,329 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:15,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 16:15:15,329 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:15,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:15,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1769088500, now seen corresponding path program 1 times [2025-03-03 16:15:15,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:15,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967431699] [2025-03-03 16:15:15,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:15,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:15,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-03 16:15:15,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-03 16:15:15,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:15,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:15,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967431699] [2025-03-03 16:15:15,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967431699] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:15,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:15,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953437982] [2025-03-03 16:15:15,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:15,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:15,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:15,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:15,568 INFO L87 Difference]: Start difference. First operand 2366 states and 3696 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:15,898 INFO L93 Difference]: Finished difference Result 3122 states and 4914 transitions. [2025-03-03 16:15:15,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-03 16:15:15,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2025-03-03 16:15:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:15,912 INFO L225 Difference]: With dead ends: 3122 [2025-03-03 16:15:15,912 INFO L226 Difference]: Without dead ends: 3068 [2025-03-03 16:15:15,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2025-03-03 16:15:15,915 INFO L435 NwaCegarLoop]: 1578 mSDtfsCounter, 11431 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11431 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:15,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11431 Valid, 5337 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 16:15:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2025-03-03 16:15:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2418. [2025-03-03 16:15:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2416 states have (on average 1.564569536423841) internal successors, (3780), 2417 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3780 transitions. [2025-03-03 16:15:15,959 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3780 transitions. Word has length 77 [2025-03-03 16:15:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:15,960 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3780 transitions. [2025-03-03 16:15:15,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3780 transitions. [2025-03-03 16:15:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-03 16:15:15,961 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:15,961 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:15,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 16:15:15,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:15,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1833353959, now seen corresponding path program 1 times [2025-03-03 16:15:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:15,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545899196] [2025-03-03 16:15:15,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:15,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-03 16:15:15,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-03 16:15:15,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:15,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:16,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:16,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545899196] [2025-03-03 16:15:16,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545899196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:16,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:16,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:16,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190982409] [2025-03-03 16:15:16,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:16,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:16,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:16,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:16,045 INFO L87 Difference]: Start difference. First operand 2418 states and 3780 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:16,069 INFO L93 Difference]: Finished difference Result 2619 states and 4103 transitions. [2025-03-03 16:15:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:16,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2025-03-03 16:15:16,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:16,081 INFO L225 Difference]: With dead ends: 2619 [2025-03-03 16:15:16,081 INFO L226 Difference]: Without dead ends: 2513 [2025-03-03 16:15:16,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:16,083 INFO L435 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:16,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2025-03-03 16:15:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2025-03-03 16:15:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.5655639697090473) internal successors, (3928), 2510 states have internal predecessors, (3928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3928 transitions. [2025-03-03 16:15:16,124 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3928 transitions. Word has length 79 [2025-03-03 16:15:16,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:16,125 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3928 transitions. [2025-03-03 16:15:16,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3928 transitions. [2025-03-03 16:15:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-03 16:15:16,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:16,126 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:16,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 16:15:16,126 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:16,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1865677194, now seen corresponding path program 1 times [2025-03-03 16:15:16,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781743077] [2025-03-03 16:15:16,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:16,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-03 16:15:16,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-03 16:15:16,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:16,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:16,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:16,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781743077] [2025-03-03 16:15:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781743077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:16,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:16,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089648062] [2025-03-03 16:15:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:16,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:16,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:16,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:16,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:16,514 INFO L87 Difference]: Start difference. First operand 2511 states and 3928 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:16,769 INFO L93 Difference]: Finished difference Result 2712 states and 4248 transitions. [2025-03-03 16:15:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2025-03-03 16:15:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:16,776 INFO L225 Difference]: With dead ends: 2712 [2025-03-03 16:15:16,777 INFO L226 Difference]: Without dead ends: 2513 [2025-03-03 16:15:16,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2025-03-03 16:15:16,778 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 7555 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7555 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:16,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7555 Valid, 2077 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2025-03-03 16:15:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2025-03-03 16:15:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.5647668393782384) internal successors, (3926), 2510 states have internal predecessors, (3926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3926 transitions. [2025-03-03 16:15:16,815 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3926 transitions. Word has length 79 [2025-03-03 16:15:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:16,815 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3926 transitions. [2025-03-03 16:15:16,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3926 transitions. [2025-03-03 16:15:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-03 16:15:16,816 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:16,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:16,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 16:15:16,817 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:16,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2031955900, now seen corresponding path program 1 times [2025-03-03 16:15:16,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:16,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242131007] [2025-03-03 16:15:16,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:16,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:16,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-03 16:15:16,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-03 16:15:16,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:16,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242131007] [2025-03-03 16:15:17,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242131007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 16:15:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454793429] [2025-03-03 16:15:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 16:15:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 16:15:17,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 16:15:17,028 INFO L87 Difference]: Start difference. First operand 2511 states and 3926 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,076 INFO L93 Difference]: Finished difference Result 2519 states and 3935 transitions. [2025-03-03 16:15:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 16:15:17,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2025-03-03 16:15:17,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,084 INFO L225 Difference]: With dead ends: 2519 [2025-03-03 16:15:17,084 INFO L226 Difference]: Without dead ends: 2517 [2025-03-03 16:15:17,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 16:15:17,085 INFO L435 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11019 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2025-03-03 16:15:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2025-03-03 16:15:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5630218687872763) internal successors, (3931), 2516 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3931 transitions. [2025-03-03 16:15:17,122 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3931 transitions. Word has length 80 [2025-03-03 16:15:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:17,122 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3931 transitions. [2025-03-03 16:15:17,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3931 transitions. [2025-03-03 16:15:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:17,123 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:17,123 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:17,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 16:15:17,123 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:17,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash 425497576, now seen corresponding path program 1 times [2025-03-03 16:15:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:17,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838180854] [2025-03-03 16:15:17,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:17,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:17,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:17,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:17,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838180854] [2025-03-03 16:15:17,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838180854] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989062707] [2025-03-03 16:15:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:17,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:17,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,174 INFO L87 Difference]: Start difference. First operand 2517 states and 3931 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,198 INFO L93 Difference]: Finished difference Result 2735 states and 4272 transitions. [2025-03-03 16:15:17,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:17,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:17,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,205 INFO L225 Difference]: With dead ends: 2735 [2025-03-03 16:15:17,206 INFO L226 Difference]: Without dead ends: 2623 [2025-03-03 16:15:17,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,207 INFO L435 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2025-03-03 16:15:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2621. [2025-03-03 16:15:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2619 states have (on average 1.5624284077892325) internal successors, (4092), 2620 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 4092 transitions. [2025-03-03 16:15:17,246 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 4092 transitions. Word has length 81 [2025-03-03 16:15:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:17,246 INFO L471 AbstractCegarLoop]: Abstraction has 2621 states and 4092 transitions. [2025-03-03 16:15:17,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 4092 transitions. [2025-03-03 16:15:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:17,247 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:17,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:17,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 16:15:17,248 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:17,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1894061912, now seen corresponding path program 1 times [2025-03-03 16:15:17,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:17,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437242922] [2025-03-03 16:15:17,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:17,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:17,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:17,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:17,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:17,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437242922] [2025-03-03 16:15:17,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437242922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895319788] [2025-03-03 16:15:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:17,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,300 INFO L87 Difference]: Start difference. First operand 2621 states and 4092 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,325 INFO L93 Difference]: Finished difference Result 3211 states and 5012 transitions. [2025-03-03 16:15:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:17,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,333 INFO L225 Difference]: With dead ends: 3211 [2025-03-03 16:15:17,334 INFO L226 Difference]: Without dead ends: 2904 [2025-03-03 16:15:17,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,335 INFO L435 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2025-03-03 16:15:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2025-03-03 16:15:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2900 states have (on average 1.56) internal successors, (4524), 2901 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4524 transitions. [2025-03-03 16:15:17,436 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4524 transitions. Word has length 81 [2025-03-03 16:15:17,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:17,437 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 4524 transitions. [2025-03-03 16:15:17,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4524 transitions. [2025-03-03 16:15:17,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:17,438 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:17,438 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:17,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 16:15:17,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:17,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2048430744, now seen corresponding path program 1 times [2025-03-03 16:15:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:17,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579046907] [2025-03-03 16:15:17,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:17,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:17,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:17,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:17,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579046907] [2025-03-03 16:15:17,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579046907] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:17,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176921385] [2025-03-03 16:15:17,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:17,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:17,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,492 INFO L87 Difference]: Start difference. First operand 2902 states and 4524 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,522 INFO L93 Difference]: Finished difference Result 4030 states and 6266 transitions. [2025-03-03 16:15:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,538 INFO L225 Difference]: With dead ends: 4030 [2025-03-03 16:15:17,541 INFO L226 Difference]: Without dead ends: 3442 [2025-03-03 16:15:17,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,544 INFO L435 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2025-03-03 16:15:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2025-03-03 16:15:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.5532286212914486) internal successors, (5340), 3439 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5340 transitions. [2025-03-03 16:15:17,606 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5340 transitions. Word has length 81 [2025-03-03 16:15:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:17,607 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 5340 transitions. [2025-03-03 16:15:17,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5340 transitions. [2025-03-03 16:15:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:17,607 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:17,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:17,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 16:15:17,608 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:17,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1267606056, now seen corresponding path program 1 times [2025-03-03 16:15:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373398483] [2025-03-03 16:15:17,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:17,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:17,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:17,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:17,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:17,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373398483] [2025-03-03 16:15:17,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373398483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:17,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749164296] [2025-03-03 16:15:17,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:17,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:17,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,660 INFO L87 Difference]: Start difference. First operand 3440 states and 5340 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,698 INFO L93 Difference]: Finished difference Result 5596 states and 8630 transitions. [2025-03-03 16:15:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:17,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:17,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,709 INFO L225 Difference]: With dead ends: 5596 [2025-03-03 16:15:17,709 INFO L226 Difference]: Without dead ends: 4470 [2025-03-03 16:15:17,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,712 INFO L435 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2025-03-03 16:15:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4468. [2025-03-03 16:15:17,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 4466 states have (on average 1.5396327810120913) internal successors, (6876), 4467 states have internal predecessors, (6876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6876 transitions. [2025-03-03 16:15:17,785 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6876 transitions. Word has length 81 [2025-03-03 16:15:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:17,786 INFO L471 AbstractCegarLoop]: Abstraction has 4468 states and 6876 transitions. [2025-03-03 16:15:17,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6876 transitions. [2025-03-03 16:15:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:17,787 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:17,787 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:17,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 16:15:17,787 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:17,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:17,787 INFO L85 PathProgramCache]: Analyzing trace with hash 819660520, now seen corresponding path program 1 times [2025-03-03 16:15:17,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:17,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599867250] [2025-03-03 16:15:17,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:17,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:17,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:17,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:17,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:17,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:17,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:17,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599867250] [2025-03-03 16:15:17,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599867250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:17,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:17,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:17,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423552558] [2025-03-03 16:15:17,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:17,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:17,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:17,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:17,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,834 INFO L87 Difference]: Start difference. First operand 4468 states and 6876 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:17,890 INFO L93 Difference]: Finished difference Result 8584 states and 13070 transitions. [2025-03-03 16:15:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:17,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:17,902 INFO L225 Difference]: With dead ends: 8584 [2025-03-03 16:15:17,902 INFO L226 Difference]: Without dead ends: 6430 [2025-03-03 16:15:17,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:17,906 INFO L435 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:17,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2025-03-03 16:15:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6428. [2025-03-03 16:15:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 6426 states have (on average 1.5182072829131652) internal successors, (9756), 6427 states have internal predecessors, (9756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 9756 transitions. [2025-03-03 16:15:18,016 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 9756 transitions. Word has length 81 [2025-03-03 16:15:18,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:18,016 INFO L471 AbstractCegarLoop]: Abstraction has 6428 states and 9756 transitions. [2025-03-03 16:15:18,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 9756 transitions. [2025-03-03 16:15:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:18,017 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:18,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:18,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 16:15:18,018 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:18,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1234836392, now seen corresponding path program 1 times [2025-03-03 16:15:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141753524] [2025-03-03 16:15:18,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:18,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:18,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:18,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:18,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:18,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:18,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:18,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141753524] [2025-03-03 16:15:18,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141753524] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:18,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:18,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:18,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002314320] [2025-03-03 16:15:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:18,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:18,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:18,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:18,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:18,132 INFO L87 Difference]: Start difference. First operand 6428 states and 9756 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:18,273 INFO L93 Difference]: Finished difference Result 14272 states and 21374 transitions. [2025-03-03 16:15:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:18,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:18,292 INFO L225 Difference]: With dead ends: 14272 [2025-03-03 16:15:18,293 INFO L226 Difference]: Without dead ends: 10158 [2025-03-03 16:15:18,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:18,301 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:18,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1756 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:18,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2025-03-03 16:15:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10156. [2025-03-03 16:15:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10156 states, 10154 states have (on average 1.4902501477250345) internal successors, (15132), 10155 states have internal predecessors, (15132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10156 states to 10156 states and 15132 transitions. [2025-03-03 16:15:18,513 INFO L78 Accepts]: Start accepts. Automaton has 10156 states and 15132 transitions. Word has length 81 [2025-03-03 16:15:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:18,513 INFO L471 AbstractCegarLoop]: Abstraction has 10156 states and 15132 transitions. [2025-03-03 16:15:18,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 10156 states and 15132 transitions. [2025-03-03 16:15:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:15:18,513 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:18,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:18,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 16:15:18,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:18,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash 748118120, now seen corresponding path program 1 times [2025-03-03 16:15:18,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:18,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706781882] [2025-03-03 16:15:18,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:18,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:18,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:15:18,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:15:18,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:18,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:15:18,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:18,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706781882] [2025-03-03 16:15:18,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706781882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:18,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:18,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:15:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712469689] [2025-03-03 16:15:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:18,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:15:18,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:18,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:15:18,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:18,560 INFO L87 Difference]: Start difference. First operand 10156 states and 15132 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:18,725 INFO L93 Difference]: Finished difference Result 25072 states and 36830 transitions. [2025-03-03 16:15:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:15:18,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2025-03-03 16:15:18,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:18,755 INFO L225 Difference]: With dead ends: 25072 [2025-03-03 16:15:18,755 INFO L226 Difference]: Without dead ends: 17230 [2025-03-03 16:15:18,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:15:18,768 INFO L435 NwaCegarLoop]: 1646 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:18,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1758 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:15:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2025-03-03 16:15:19,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 17228. [2025-03-03 16:15:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 17226 states have (on average 1.4580285614768373) internal successors, (25116), 17227 states have internal predecessors, (25116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 25116 transitions. [2025-03-03 16:15:19,121 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 25116 transitions. Word has length 81 [2025-03-03 16:15:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:19,121 INFO L471 AbstractCegarLoop]: Abstraction has 17228 states and 25116 transitions. [2025-03-03 16:15:19,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 25116 transitions. [2025-03-03 16:15:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:19,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:19,126 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:19,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 16:15:19,126 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:19,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1592050071, now seen corresponding path program 1 times [2025-03-03 16:15:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037694595] [2025-03-03 16:15:19,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:19,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:19,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:19,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:19,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-03 16:15:19,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037694595] [2025-03-03 16:15:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037694595] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:19,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:19,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:19,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431483968] [2025-03-03 16:15:19,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:19,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:19,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:19,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:19,292 INFO L87 Difference]: Start difference. First operand 17228 states and 25116 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:20,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:20,717 INFO L93 Difference]: Finished difference Result 120284 states and 173604 transitions. [2025-03-03 16:15:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:20,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:20,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:20,971 INFO L225 Difference]: With dead ends: 120284 [2025-03-03 16:15:20,971 INFO L226 Difference]: Without dead ends: 109786 [2025-03-03 16:15:21,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:21,005 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 9793 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9793 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:21,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9793 Valid, 4808 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:21,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109786 states. [2025-03-03 16:15:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109786 to 29964. [2025-03-03 16:15:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29964 states, 29962 states have (on average 1.4448968693678659) internal successors, (43292), 29963 states have internal predecessors, (43292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29964 states to 29964 states and 43292 transitions. [2025-03-03 16:15:22,352 INFO L78 Accepts]: Start accepts. Automaton has 29964 states and 43292 transitions. Word has length 104 [2025-03-03 16:15:22,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:22,352 INFO L471 AbstractCegarLoop]: Abstraction has 29964 states and 43292 transitions. [2025-03-03 16:15:22,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 29964 states and 43292 transitions. [2025-03-03 16:15:22,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:22,359 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:22,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:22,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 16:15:22,359 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:22,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:22,360 INFO L85 PathProgramCache]: Analyzing trace with hash 383357737, now seen corresponding path program 1 times [2025-03-03 16:15:22,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:22,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388670582] [2025-03-03 16:15:22,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:22,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:22,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:22,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:22,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-03 16:15:22,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388670582] [2025-03-03 16:15:22,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388670582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:22,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:22,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:22,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757678458] [2025-03-03 16:15:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:22,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:22,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:22,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:22,549 INFO L87 Difference]: Start difference. First operand 29964 states and 43292 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:24,235 INFO L93 Difference]: Finished difference Result 135196 states and 194980 transitions. [2025-03-03 16:15:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:24,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:24,446 INFO L225 Difference]: With dead ends: 135196 [2025-03-03 16:15:24,447 INFO L226 Difference]: Without dead ends: 120282 [2025-03-03 16:15:24,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:24,484 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9797 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9797 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:24,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9797 Valid, 4731 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states. [2025-03-03 16:15:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120282 to 50124. [2025-03-03 16:15:26,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50124 states, 50122 states have (on average 1.437053589242249) internal successors, (72028), 50123 states have internal predecessors, (72028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50124 states to 50124 states and 72028 transitions. [2025-03-03 16:15:26,423 INFO L78 Accepts]: Start accepts. Automaton has 50124 states and 72028 transitions. Word has length 104 [2025-03-03 16:15:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:26,424 INFO L471 AbstractCegarLoop]: Abstraction has 50124 states and 72028 transitions. [2025-03-03 16:15:26,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand 50124 states and 72028 transitions. [2025-03-03 16:15:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:26,431 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:26,432 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:26,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 16:15:26,432 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:26,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:26,433 INFO L85 PathProgramCache]: Analyzing trace with hash 228988905, now seen corresponding path program 1 times [2025-03-03 16:15:26,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:26,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851067474] [2025-03-03 16:15:26,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:26,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:26,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:26,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:26,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:26,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-03 16:15:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851067474] [2025-03-03 16:15:26,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851067474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:26,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:26,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:26,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808998021] [2025-03-03 16:15:26,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:26,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:26,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:26,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:26,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:26,637 INFO L87 Difference]: Start difference. First operand 50124 states and 72028 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:29,260 INFO L93 Difference]: Finished difference Result 150108 states and 216292 transitions. [2025-03-03 16:15:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:29,419 INFO L225 Difference]: With dead ends: 150108 [2025-03-03 16:15:29,419 INFO L226 Difference]: Without dead ends: 135194 [2025-03-03 16:15:29,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:29,450 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 9817 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9817 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:29,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9817 Valid, 4693 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135194 states. [2025-03-03 16:15:31,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135194 to 65036. [2025-03-03 16:15:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65036 states, 65034 states have (on average 1.4352492542362456) internal successors, (93340), 65035 states have internal predecessors, (93340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65036 states to 65036 states and 93340 transitions. [2025-03-03 16:15:31,450 INFO L78 Accepts]: Start accepts. Automaton has 65036 states and 93340 transitions. Word has length 104 [2025-03-03 16:15:31,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:31,450 INFO L471 AbstractCegarLoop]: Abstraction has 65036 states and 93340 transitions. [2025-03-03 16:15:31,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand 65036 states and 93340 transitions. [2025-03-03 16:15:31,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:31,457 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:31,457 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:31,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 16:15:31,457 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:31,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:31,458 INFO L85 PathProgramCache]: Analyzing trace with hash -749941591, now seen corresponding path program 1 times [2025-03-03 16:15:31,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691711677] [2025-03-03 16:15:31,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:31,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:31,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:31,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:31,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-03 16:15:31,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:31,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691711677] [2025-03-03 16:15:31,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691711677] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:31,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:31,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:31,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134843766] [2025-03-03 16:15:31,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:31,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:31,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:31,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:31,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:31,653 INFO L87 Difference]: Start difference. First operand 65036 states and 93340 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:35,094 INFO L93 Difference]: Finished difference Result 165020 states and 237604 transitions. [2025-03-03 16:15:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:35,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:35,286 INFO L225 Difference]: With dead ends: 165020 [2025-03-03 16:15:35,286 INFO L226 Difference]: Without dead ends: 150106 [2025-03-03 16:15:35,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:35,319 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 9857 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9857 SdHoareTripleChecker+Valid, 4606 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:35,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9857 Valid, 4606 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2025-03-03 16:15:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 79948. [2025-03-03 16:15:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79948 states, 79946 states have (on average 1.4341180296700273) internal successors, (114652), 79947 states have internal predecessors, (114652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79948 states to 79948 states and 114652 transitions. [2025-03-03 16:15:37,801 INFO L78 Accepts]: Start accepts. Automaton has 79948 states and 114652 transitions. Word has length 104 [2025-03-03 16:15:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:37,801 INFO L471 AbstractCegarLoop]: Abstraction has 79948 states and 114652 transitions. [2025-03-03 16:15:37,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 79948 states and 114652 transitions. [2025-03-03 16:15:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:37,806 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:37,806 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:37,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 16:15:37,807 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:37,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1197887127, now seen corresponding path program 1 times [2025-03-03 16:15:37,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:37,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665438106] [2025-03-03 16:15:37,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:37,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:37,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:37,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:37,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:37,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-03 16:15:37,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:37,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665438106] [2025-03-03 16:15:37,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665438106] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:37,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:37,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760096719] [2025-03-03 16:15:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:37,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:37,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:37,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:37,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:37,950 INFO L87 Difference]: Start difference. First operand 79948 states and 114652 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:41,779 INFO L93 Difference]: Finished difference Result 179932 states and 258916 transitions. [2025-03-03 16:15:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:41,988 INFO L225 Difference]: With dead ends: 179932 [2025-03-03 16:15:41,988 INFO L226 Difference]: Without dead ends: 165018 [2025-03-03 16:15:42,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:42,029 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 9904 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9904 SdHoareTripleChecker+Valid, 4581 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:42,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9904 Valid, 4581 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:42,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165018 states. [2025-03-03 16:15:45,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165018 to 94860. [2025-03-03 16:15:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94860 states, 94858 states have (on average 1.4333424697969597) internal successors, (135964), 94859 states have internal predecessors, (135964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94860 states to 94860 states and 135964 transitions. [2025-03-03 16:15:45,224 INFO L78 Accepts]: Start accepts. Automaton has 94860 states and 135964 transitions. Word has length 104 [2025-03-03 16:15:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:15:45,224 INFO L471 AbstractCegarLoop]: Abstraction has 94860 states and 135964 transitions. [2025-03-03 16:15:45,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 94860 states and 135964 transitions. [2025-03-03 16:15:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:15:45,230 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:15:45,230 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:15:45,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-03 16:15:45,230 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:15:45,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:15:45,231 INFO L85 PathProgramCache]: Analyzing trace with hash -782711255, now seen corresponding path program 1 times [2025-03-03 16:15:45,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:15:45,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693085668] [2025-03-03 16:15:45,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:15:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:15:45,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:15:45,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:15:45,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:15:45,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:15:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-03 16:15:45,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:15:45,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693085668] [2025-03-03 16:15:45,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693085668] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:15:45,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:15:45,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:15:45,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432452613] [2025-03-03 16:15:45,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:15:45,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:15:45,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:15:45,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:15:45,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:15:45,366 INFO L87 Difference]: Start difference. First operand 94860 states and 135964 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:15:48,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:15:48,724 INFO L93 Difference]: Finished difference Result 194844 states and 280228 transitions. [2025-03-03 16:15:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:15:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:15:48,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:15:48,952 INFO L225 Difference]: With dead ends: 194844 [2025-03-03 16:15:48,952 INFO L226 Difference]: Without dead ends: 179930 [2025-03-03 16:15:48,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2025-03-03 16:15:48,994 INFO L435 NwaCegarLoop]: 1661 mSDtfsCounter, 9960 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9960 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:15:48,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9960 Valid, 4617 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:15:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179930 states.