./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label54.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/eca-rers2012/Problem12_label54.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 9f137b4cfcf2c394c1a64ac698bc08e2e305ac6959ca2787cbc9ca23749e2553 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 10:39:17,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 10:39:17,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 10:39:17,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 10:39:17,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 10:39:17,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 10:39:17,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 10:39:17,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 10:39:17,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 10:39:17,554 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 10:39:17,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 10:39:17,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 10:39:17,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 10:39:17,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 10:39:17,554 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 10:39:17,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 10:39:17,555 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 10:39:17,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:39:17,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 10:39:17,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 10:39:17,556 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 -> 9f137b4cfcf2c394c1a64ac698bc08e2e305ac6959ca2787cbc9ca23749e2553 [2025-03-03 10:39:17,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 10:39:17,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 10:39:17,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 10:39:17,791 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 10:39:17,791 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 10:39:17,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label54.c [2025-03-03 10:39:18,965 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86a88e38/04fe5e9d5177452fa97224403eecc210/FLAG73445d099 [2025-03-03 10:39:19,317 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 10:39:19,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label54.c [2025-03-03 10:39:19,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86a88e38/04fe5e9d5177452fa97224403eecc210/FLAG73445d099 [2025-03-03 10:39:19,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86a88e38/04fe5e9d5177452fa97224403eecc210 [2025-03-03 10:39:19,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 10:39:19,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 10:39:19,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 10:39:19,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 10:39:19,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 10:39:19,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:39:19" (1/1) ... [2025-03-03 10:39:19,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329ee5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:19, skipping insertion in model container [2025-03-03 10:39:19,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 10:39:19" (1/1) ... [2025-03-03 10:39:19,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 10:39:19,577 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/eca-rers2012/Problem12_label54.c[4370,4383] [2025-03-03 10:39:19,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:39:20,003 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 10:39:20,016 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/eca-rers2012/Problem12_label54.c[4370,4383] [2025-03-03 10:39:20,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 10:39:20,274 INFO L204 MainTranslator]: Completed translation [2025-03-03 10:39:20,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20 WrapperNode [2025-03-03 10:39:20,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 10:39:20,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 10:39:20,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 10:39:20,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 10:39:20,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,514 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4758 [2025-03-03 10:39:20,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 10:39:20,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 10:39:20,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 10:39:20,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 10:39:20,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,681 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 10:39:20,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,784 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 10:39:20,848 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 10:39:20,849 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 10:39:20,849 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 10:39:20,849 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (1/1) ... [2025-03-03 10:39:20,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 10:39:20,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:39:20,872 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 10:39:20,878 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 10:39:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 10:39:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 10:39:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 10:39:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 10:39:20,943 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 10:39:20,944 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 10:39:24,187 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2025-03-03 10:39:24,188 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2025-03-03 10:39:24,188 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2025-03-03 10:39:24,362 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2025-03-03 10:39:24,362 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 10:39:24,392 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 10:39:24,394 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 10:39:24,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:39:24 BoogieIcfgContainer [2025-03-03 10:39:24,394 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 10:39:24,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 10:39:24,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 10:39:24,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 10:39:24,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 10:39:19" (1/3) ... [2025-03-03 10:39:24,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a124ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:39:24, skipping insertion in model container [2025-03-03 10:39:24,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 10:39:20" (2/3) ... [2025-03-03 10:39:24,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a124ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 10:39:24, skipping insertion in model container [2025-03-03 10:39:24,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:39:24" (3/3) ... [2025-03-03 10:39:24,401 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem12_label54.c [2025-03-03 10:39:24,412 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 10:39:24,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem12_label54.c that has 1 procedures, 818 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 10:39:24,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 10:39:24,486 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;@d657ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 10:39:24,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 10:39:24,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9166666666666667) internal successors, (1564), 817 states have internal predecessors, (1564), 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 10:39:24,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-03 10:39:24,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:24,499 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] [2025-03-03 10:39:24,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:24,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1027707912, now seen corresponding path program 1 times [2025-03-03 10:39:24,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:24,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555247738] [2025-03-03 10:39:24,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:24,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:24,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-03 10:39:24,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-03 10:39:24,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:24,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:24,742 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 10:39:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:24,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555247738] [2025-03-03 10:39:24,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555247738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:24,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:24,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:39:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527511785] [2025-03-03 10:39:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:24,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:24,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:24,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:24,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:24,768 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9166666666666667) internal successors, (1564), 817 states have internal predecessors, (1564), 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 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 10:39:27,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:27,572 INFO L93 Difference]: Finished difference Result 2404 states and 4642 transitions. [2025-03-03 10:39:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2025-03-03 10:39:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:27,590 INFO L225 Difference]: With dead ends: 2404 [2025-03-03 10:39:27,591 INFO L226 Difference]: Without dead ends: 1506 [2025-03-03 10:39:27,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:39:27,600 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 787 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:27,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 525 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-03 10:39:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2025-03-03 10:39:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2025-03-03 10:39:27,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.6066445182724252) internal successors, (2418), 1505 states have internal predecessors, (2418), 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 10:39:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2418 transitions. [2025-03-03 10:39:27,696 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2418 transitions. Word has length 33 [2025-03-03 10:39:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:27,696 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2418 transitions. [2025-03-03 10:39:27,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 10:39:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2418 transitions. [2025-03-03 10:39:27,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-03 10:39:27,700 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:27,700 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:39:27,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 10:39:27,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:27,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash -624478001, now seen corresponding path program 1 times [2025-03-03 10:39:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286322053] [2025-03-03 10:39:27,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:27,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 10:39:27,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 10:39:27,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:27,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286322053] [2025-03-03 10:39:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286322053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:39:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427993206] [2025-03-03 10:39:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:27,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:27,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:27,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:27,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:27,924 INFO L87 Difference]: Start difference. First operand 1506 states and 2418 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 10:39:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:30,406 INFO L93 Difference]: Finished difference Result 4514 states and 7250 transitions. [2025-03-03 10:39:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:30,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 108 [2025-03-03 10:39:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:30,415 INFO L225 Difference]: With dead ends: 4514 [2025-03-03 10:39:30,415 INFO L226 Difference]: Without dead ends: 3010 [2025-03-03 10:39:30,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:39:30,417 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 916 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:30,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 583 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-03 10:39:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2025-03-03 10:39:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3008. [2025-03-03 10:39:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4595942800133024) internal successors, (4389), 3007 states have internal predecessors, (4389), 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 10:39:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4389 transitions. [2025-03-03 10:39:30,457 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4389 transitions. Word has length 108 [2025-03-03 10:39:30,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:30,457 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4389 transitions. [2025-03-03 10:39:30,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 10:39:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4389 transitions. [2025-03-03 10:39:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-03 10:39:30,459 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:30,459 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:39:30,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 10:39:30,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:30,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:30,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1293661077, now seen corresponding path program 1 times [2025-03-03 10:39:30,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:30,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825502582] [2025-03-03 10:39:30,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:30,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-03 10:39:30,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-03 10:39:30,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:30,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:30,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:30,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825502582] [2025-03-03 10:39:30,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825502582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:30,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:30,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 10:39:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659242785] [2025-03-03 10:39:30,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:30,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:30,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:30,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:30,674 INFO L87 Difference]: Start difference. First operand 3008 states and 4389 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 10:39:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:32,775 INFO L93 Difference]: Finished difference Result 9018 states and 13162 transitions. [2025-03-03 10:39:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:32,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 137 [2025-03-03 10:39:32,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:32,791 INFO L225 Difference]: With dead ends: 9018 [2025-03-03 10:39:32,791 INFO L226 Difference]: Without dead ends: 6012 [2025-03-03 10:39:32,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:39:32,795 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 745 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:32,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 447 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:39:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2025-03-03 10:39:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 6012. [2025-03-03 10:39:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 6011 states have (on average 1.2951256030610547) internal successors, (7785), 6011 states have internal predecessors, (7785), 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 10:39:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 7785 transitions. [2025-03-03 10:39:32,872 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 7785 transitions. Word has length 137 [2025-03-03 10:39:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:32,873 INFO L471 AbstractCegarLoop]: Abstraction has 6012 states and 7785 transitions. [2025-03-03 10:39:32,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 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 10:39:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 7785 transitions. [2025-03-03 10:39:32,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-03-03 10:39:32,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:32,875 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:32,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 10:39:32,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:32,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1984906284, now seen corresponding path program 1 times [2025-03-03 10:39:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:32,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461715275] [2025-03-03 10:39:32,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:32,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:32,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-03-03 10:39:32,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-03-03 10:39:32,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:32,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:32,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461715275] [2025-03-03 10:39:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461715275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:32,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:32,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453723473] [2025-03-03 10:39:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:32,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:32,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:32,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:32,993 INFO L87 Difference]: Start difference. First operand 6012 states and 7785 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 10:39:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:35,309 INFO L93 Difference]: Finished difference Result 18030 states and 23350 transitions. [2025-03-03 10:39:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:35,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 174 [2025-03-03 10:39:35,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:35,338 INFO L225 Difference]: With dead ends: 18030 [2025-03-03 10:39:35,338 INFO L226 Difference]: Without dead ends: 12020 [2025-03-03 10:39:35,343 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 10:39:35,346 INFO L435 NwaCegarLoop]: 1433 mSDtfsCounter, 721 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 3220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:35,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1441 Invalid, 3220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-03 10:39:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12020 states. [2025-03-03 10:39:35,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12020 to 11269. [2025-03-03 10:39:35,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11269 states, 11268 states have (on average 1.2676606318778842) internal successors, (14284), 11268 states have internal predecessors, (14284), 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 10:39:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11269 states to 11269 states and 14284 transitions. [2025-03-03 10:39:35,470 INFO L78 Accepts]: Start accepts. Automaton has 11269 states and 14284 transitions. Word has length 174 [2025-03-03 10:39:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:35,471 INFO L471 AbstractCegarLoop]: Abstraction has 11269 states and 14284 transitions. [2025-03-03 10:39:35,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 10:39:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 11269 states and 14284 transitions. [2025-03-03 10:39:35,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-03-03 10:39:35,475 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:35,475 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:35,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 10:39:35,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:35,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1426439473, now seen corresponding path program 1 times [2025-03-03 10:39:35,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:35,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16757170] [2025-03-03 10:39:35,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:35,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:35,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-03-03 10:39:35,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-03-03 10:39:35,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:35,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16757170] [2025-03-03 10:39:35,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16757170] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:35,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:35,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 10:39:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128563784] [2025-03-03 10:39:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:35,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 10:39:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:35,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 10:39:35,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:39:35,928 INFO L87 Difference]: Start difference. First operand 11269 states and 14284 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 10:39:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:39,423 INFO L93 Difference]: Finished difference Result 29295 states and 36129 transitions. [2025-03-03 10:39:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 10:39:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 177 [2025-03-03 10:39:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:39,457 INFO L225 Difference]: With dead ends: 29295 [2025-03-03 10:39:39,457 INFO L226 Difference]: Without dead ends: 18028 [2025-03-03 10:39:39,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-03 10:39:39,468 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 3431 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5369 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3431 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 5528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 5369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:39,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3431 Valid, 720 Invalid, 5528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 5369 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-03-03 10:39:39,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18028 states. [2025-03-03 10:39:39,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18028 to 16526. [2025-03-03 10:39:39,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16526 states, 16525 states have (on average 1.2050226928895613) internal successors, (19913), 16525 states have internal predecessors, (19913), 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 10:39:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16526 states to 16526 states and 19913 transitions. [2025-03-03 10:39:39,715 INFO L78 Accepts]: Start accepts. Automaton has 16526 states and 19913 transitions. Word has length 177 [2025-03-03 10:39:39,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:39,715 INFO L471 AbstractCegarLoop]: Abstraction has 16526 states and 19913 transitions. [2025-03-03 10:39:39,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 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 10:39:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16526 states and 19913 transitions. [2025-03-03 10:39:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-03 10:39:39,717 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:39,717 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:39,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 10:39:39,717 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:39,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:39,718 INFO L85 PathProgramCache]: Analyzing trace with hash 826168478, now seen corresponding path program 1 times [2025-03-03 10:39:39,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:39,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145804202] [2025-03-03 10:39:39,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:39,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:39,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-03 10:39:39,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-03 10:39:39,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:39,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:39,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:39,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145804202] [2025-03-03 10:39:39,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145804202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:39,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:39,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:39,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065073106] [2025-03-03 10:39:39,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:39,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:39,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:39,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:39,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:39,892 INFO L87 Difference]: Start difference. First operand 16526 states and 19913 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 10:39:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:42,207 INFO L93 Difference]: Finished difference Result 39058 states and 47606 transitions. [2025-03-03 10:39:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:42,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2025-03-03 10:39:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:42,246 INFO L225 Difference]: With dead ends: 39058 [2025-03-03 10:39:42,246 INFO L226 Difference]: Without dead ends: 22534 [2025-03-03 10:39:42,262 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 10:39:42,262 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 728 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:42,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1427 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-03 10:39:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22534 states. [2025-03-03 10:39:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22534 to 22534. [2025-03-03 10:39:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22534 states, 22533 states have (on average 1.2062752407579993) internal successors, (27181), 22533 states have internal predecessors, (27181), 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 10:39:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22534 states to 22534 states and 27181 transitions. [2025-03-03 10:39:42,527 INFO L78 Accepts]: Start accepts. Automaton has 22534 states and 27181 transitions. Word has length 178 [2025-03-03 10:39:42,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:42,527 INFO L471 AbstractCegarLoop]: Abstraction has 22534 states and 27181 transitions. [2025-03-03 10:39:42,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 10:39:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 22534 states and 27181 transitions. [2025-03-03 10:39:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-03-03 10:39:42,529 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:42,529 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:39:42,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 10:39:42,530 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:42,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:42,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1280492340, now seen corresponding path program 1 times [2025-03-03 10:39:42,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:42,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61852634] [2025-03-03 10:39:42,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:42,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 248 statements into 1 equivalence classes. [2025-03-03 10:39:42,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 248 of 248 statements. [2025-03-03 10:39:42,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:42,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:39:42,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:42,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61852634] [2025-03-03 10:39:42,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61852634] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:42,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:42,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610679198] [2025-03-03 10:39:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:42,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 10:39:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:42,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 10:39:42,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:39:42,761 INFO L87 Difference]: Start difference. First operand 22534 states and 27181 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 10:39:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:44,946 INFO L93 Difference]: Finished difference Result 50360 states and 60086 transitions. [2025-03-03 10:39:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 10:39:44,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 248 [2025-03-03 10:39:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:44,978 INFO L225 Difference]: With dead ends: 50360 [2025-03-03 10:39:44,978 INFO L226 Difference]: Without dead ends: 27791 [2025-03-03 10:39:44,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 10:39:44,993 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 702 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 3271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:44,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 708 Invalid, 3271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:39:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27791 states. [2025-03-03 10:39:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27791 to 27791. [2025-03-03 10:39:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27791 states, 27790 states have (on average 1.1701691255847426) internal successors, (32519), 27790 states have internal predecessors, (32519), 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 10:39:45,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27791 states to 27791 states and 32519 transitions. [2025-03-03 10:39:45,228 INFO L78 Accepts]: Start accepts. Automaton has 27791 states and 32519 transitions. Word has length 248 [2025-03-03 10:39:45,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:45,228 INFO L471 AbstractCegarLoop]: Abstraction has 27791 states and 32519 transitions. [2025-03-03 10:39:45,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 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 10:39:45,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27791 states and 32519 transitions. [2025-03-03 10:39:45,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2025-03-03 10:39:45,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:45,231 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:39:45,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 10:39:45,231 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:45,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1394564985, now seen corresponding path program 1 times [2025-03-03 10:39:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:45,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201963195] [2025-03-03 10:39:45,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:45,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 310 statements into 1 equivalence classes. [2025-03-03 10:39:45,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 310 of 310 statements. [2025-03-03 10:39:45,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:45,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:45,393 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-03-03 10:39:45,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:45,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201963195] [2025-03-03 10:39:45,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201963195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:45,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:45,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:45,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998595376] [2025-03-03 10:39:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:45,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:45,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:45,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:45,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:45,394 INFO L87 Difference]: Start difference. First operand 27791 states and 32519 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 10:39:47,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:47,584 INFO L93 Difference]: Finished difference Result 69098 states and 82139 transitions. [2025-03-03 10:39:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 310 [2025-03-03 10:39:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:47,633 INFO L225 Difference]: With dead ends: 69098 [2025-03-03 10:39:47,634 INFO L226 Difference]: Without dead ends: 41309 [2025-03-03 10:39:47,654 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 10:39:47,655 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 742 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:47,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1216 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:39:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41309 states. [2025-03-03 10:39:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41309 to 41309. [2025-03-03 10:39:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41309 states, 41308 states have (on average 1.1405538878667572) internal successors, (47114), 41308 states have internal predecessors, (47114), 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 10:39:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41309 states to 41309 states and 47114 transitions. [2025-03-03 10:39:48,015 INFO L78 Accepts]: Start accepts. Automaton has 41309 states and 47114 transitions. Word has length 310 [2025-03-03 10:39:48,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:48,015 INFO L471 AbstractCegarLoop]: Abstraction has 41309 states and 47114 transitions. [2025-03-03 10:39:48,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 10:39:48,016 INFO L276 IsEmpty]: Start isEmpty. Operand 41309 states and 47114 transitions. [2025-03-03 10:39:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-03-03 10:39:48,089 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:48,089 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:39:48,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 10:39:48,090 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:48,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash 768578203, now seen corresponding path program 1 times [2025-03-03 10:39:48,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:48,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739123901] [2025-03-03 10:39:48,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:48,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:48,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-03-03 10:39:48,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-03-03 10:39:48,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:48,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-03 10:39:48,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:48,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739123901] [2025-03-03 10:39:48,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739123901] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:48,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:48,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:48,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365117413] [2025-03-03 10:39:48,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:48,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:48,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:48,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:48,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:48,284 INFO L87 Difference]: Start difference. First operand 41309 states and 47114 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:39:50,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:50,408 INFO L93 Difference]: Finished difference Result 82616 states and 94226 transitions. [2025-03-03 10:39:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:50,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 318 [2025-03-03 10:39:50,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:50,450 INFO L225 Difference]: With dead ends: 82616 [2025-03-03 10:39:50,450 INFO L226 Difference]: Without dead ends: 41309 [2025-03-03 10:39:50,477 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 10:39:50,478 INFO L435 NwaCegarLoop]: 1180 mSDtfsCounter, 773 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2192 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 2192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:50,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1188 Invalid, 2723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 2192 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-03 10:39:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41309 states. [2025-03-03 10:39:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41309 to 41309. [2025-03-03 10:39:50,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41309 states, 41308 states have (on average 1.091749782124528) internal successors, (45098), 41308 states have internal predecessors, (45098), 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 10:39:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41309 states to 41309 states and 45098 transitions. [2025-03-03 10:39:50,978 INFO L78 Accepts]: Start accepts. Automaton has 41309 states and 45098 transitions. Word has length 318 [2025-03-03 10:39:50,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:50,978 INFO L471 AbstractCegarLoop]: Abstraction has 41309 states and 45098 transitions. [2025-03-03 10:39:50,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 10:39:50,978 INFO L276 IsEmpty]: Start isEmpty. Operand 41309 states and 45098 transitions. [2025-03-03 10:39:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2025-03-03 10:39:50,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:50,981 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:39:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 10:39:50,981 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:50,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1170397483, now seen corresponding path program 1 times [2025-03-03 10:39:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801513410] [2025-03-03 10:39:50,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:51,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 338 statements into 1 equivalence classes. [2025-03-03 10:39:51,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 338 of 338 statements. [2025-03-03 10:39:51,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:51,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-03 10:39:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:51,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801513410] [2025-03-03 10:39:51,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801513410] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:39:51,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406015709] [2025-03-03 10:39:51,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:51,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:39:51,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:39:51,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:39:51,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 10:39:51,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 338 statements into 1 equivalence classes. [2025-03-03 10:39:51,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 338 of 338 statements. [2025-03-03 10:39:51,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:51,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:51,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:39:51,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:39:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-03 10:39:51,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:39:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406015709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:39:51,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2025-03-03 10:39:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453026899] [2025-03-03 10:39:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:51,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:51,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:51,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:51,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:39:51,707 INFO L87 Difference]: Start difference. First operand 41309 states and 45098 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 2 states have internal predecessors, (309), 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 10:39:53,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:53,951 INFO L93 Difference]: Finished difference Result 114909 states and 125877 transitions. [2025-03-03 10:39:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:53,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 2 states have internal predecessors, (309), 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 338 [2025-03-03 10:39:53,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:54,027 INFO L225 Difference]: With dead ends: 114909 [2025-03-03 10:39:54,027 INFO L226 Difference]: Without dead ends: 73602 [2025-03-03 10:39:54,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 10:39:54,055 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 459 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:54,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 605 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:39:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73602 states. [2025-03-03 10:39:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73602 to 68345. [2025-03-03 10:39:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68345 states, 68344 states have (on average 1.0748273440243474) internal successors, (73458), 68344 states have internal predecessors, (73458), 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 10:39:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68345 states to 68345 states and 73458 transitions. [2025-03-03 10:39:54,832 INFO L78 Accepts]: Start accepts. Automaton has 68345 states and 73458 transitions. Word has length 338 [2025-03-03 10:39:54,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:54,833 INFO L471 AbstractCegarLoop]: Abstraction has 68345 states and 73458 transitions. [2025-03-03 10:39:54,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 2 states have internal predecessors, (309), 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 10:39:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 68345 states and 73458 transitions. [2025-03-03 10:39:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2025-03-03 10:39:54,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:54,836 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-03 10:39:54,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 10:39:55,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-03 10:39:55,037 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:55,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash -280752730, now seen corresponding path program 1 times [2025-03-03 10:39:55,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:55,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218086224] [2025-03-03 10:39:55,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:55,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:55,056 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 364 statements into 1 equivalence classes. [2025-03-03 10:39:55,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 364 of 364 statements. [2025-03-03 10:39:55,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:55,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2025-03-03 10:39:55,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:55,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218086224] [2025-03-03 10:39:55,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218086224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:55,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:55,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:55,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139331521] [2025-03-03 10:39:55,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:55,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:55,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:55,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:55,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:55,315 INFO L87 Difference]: Start difference. First operand 68345 states and 73458 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 10:39:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:39:57,510 INFO L93 Difference]: Finished difference Result 151708 states and 163189 transitions. [2025-03-03 10:39:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:39:57,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 364 [2025-03-03 10:39:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:39:57,610 INFO L225 Difference]: With dead ends: 151708 [2025-03-03 10:39:57,610 INFO L226 Difference]: Without dead ends: 81863 [2025-03-03 10:39:57,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 10:39:57,662 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 838 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 2732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-03 10:39:57,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 906 Invalid, 2732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-03 10:39:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81863 states. [2025-03-03 10:39:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81863 to 77357. [2025-03-03 10:39:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77357 states, 77356 states have (on average 1.0724442835720565) internal successors, (82960), 77356 states have internal predecessors, (82960), 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 10:39:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77357 states to 77357 states and 82960 transitions. [2025-03-03 10:39:58,645 INFO L78 Accepts]: Start accepts. Automaton has 77357 states and 82960 transitions. Word has length 364 [2025-03-03 10:39:58,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:39:58,645 INFO L471 AbstractCegarLoop]: Abstraction has 77357 states and 82960 transitions. [2025-03-03 10:39:58,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 10:39:58,646 INFO L276 IsEmpty]: Start isEmpty. Operand 77357 states and 82960 transitions. [2025-03-03 10:39:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2025-03-03 10:39:58,660 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:39:58,660 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:39:58,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 10:39:58,662 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:39:58,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:39:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1379934279, now seen corresponding path program 1 times [2025-03-03 10:39:58,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:39:58,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142604409] [2025-03-03 10:39:58,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:39:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:39:58,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-03-03 10:39:58,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-03-03 10:39:58,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:39:58,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:39:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-03 10:39:58,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:39:58,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142604409] [2025-03-03 10:39:58,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142604409] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:39:58,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:39:58,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:39:58,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101036671] [2025-03-03 10:39:58,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:39:58,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:39:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:39:58,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:39:58,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:39:58,850 INFO L87 Difference]: Start difference. First operand 77357 states and 82960 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 10:40:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:40:01,085 INFO L93 Difference]: Finished difference Result 159218 states and 170484 transitions. [2025-03-03 10:40:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:40:01,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 533 [2025-03-03 10:40:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:40:01,167 INFO L225 Difference]: With dead ends: 159218 [2025-03-03 10:40:01,167 INFO L226 Difference]: Without dead ends: 81863 [2025-03-03 10:40:01,209 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 10:40:01,210 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 663 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-03 10:40:01,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 288 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-03 10:40:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81863 states. [2025-03-03 10:40:01,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81863 to 75104. [2025-03-03 10:40:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75104 states, 75103 states have (on average 1.0706363261121394) internal successors, (80408), 75103 states have internal predecessors, (80408), 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 10:40:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75104 states to 75104 states and 80408 transitions. [2025-03-03 10:40:02,091 INFO L78 Accepts]: Start accepts. Automaton has 75104 states and 80408 transitions. Word has length 533 [2025-03-03 10:40:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:40:02,092 INFO L471 AbstractCegarLoop]: Abstraction has 75104 states and 80408 transitions. [2025-03-03 10:40:02,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 10:40:02,092 INFO L276 IsEmpty]: Start isEmpty. Operand 75104 states and 80408 transitions. [2025-03-03 10:40:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2025-03-03 10:40:02,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:40:02,108 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:02,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 10:40:02,108 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:40:02,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:40:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1089488800, now seen corresponding path program 1 times [2025-03-03 10:40:02,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:40:02,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821045442] [2025-03-03 10:40:02,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:02,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:40:02,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 541 statements into 1 equivalence classes. [2025-03-03 10:40:02,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 541 of 541 statements. [2025-03-03 10:40:02,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:02,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-03-03 10:40:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:40:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821045442] [2025-03-03 10:40:02,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821045442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:40:02,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:40:02,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:40:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697311494] [2025-03-03 10:40:02,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:40:02,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:40:02,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:40:02,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:40:02,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:40:02,532 INFO L87 Difference]: Start difference. First operand 75104 states and 80408 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 10:40:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:40:04,859 INFO L93 Difference]: Finished difference Result 176491 states and 190358 transitions. [2025-03-03 10:40:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:40:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 541 [2025-03-03 10:40:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:40:04,978 INFO L225 Difference]: With dead ends: 176491 [2025-03-03 10:40:04,978 INFO L226 Difference]: Without dead ends: 101389 [2025-03-03 10:40:05,017 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 10:40:05,018 INFO L435 NwaCegarLoop]: 1253 mSDtfsCounter, 784 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 706 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 706 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-03 10:40:05,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1261 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [706 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-03 10:40:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101389 states. [2025-03-03 10:40:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101389 to 93879. [2025-03-03 10:40:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93879 states, 93878 states have (on average 1.068834018619911) internal successors, (100340), 93878 states have internal predecessors, (100340), 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 10:40:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93879 states to 93879 states and 100340 transitions. [2025-03-03 10:40:05,937 INFO L78 Accepts]: Start accepts. Automaton has 93879 states and 100340 transitions. Word has length 541 [2025-03-03 10:40:05,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:40:05,937 INFO L471 AbstractCegarLoop]: Abstraction has 93879 states and 100340 transitions. [2025-03-03 10:40:05,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 10:40:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 93879 states and 100340 transitions. [2025-03-03 10:40:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2025-03-03 10:40:06,090 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:40:06,090 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:40:06,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 10:40:06,091 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:40:06,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:40:06,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1065235399, now seen corresponding path program 1 times [2025-03-03 10:40:06,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:40:06,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878160087] [2025-03-03 10:40:06,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:06,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:40:06,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 553 statements into 1 equivalence classes. [2025-03-03 10:40:06,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 553 of 553 statements. [2025-03-03 10:40:06,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:06,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:06,358 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-03-03 10:40:06,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:40:06,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878160087] [2025-03-03 10:40:06,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878160087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:40:06,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 10:40:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 10:40:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620695540] [2025-03-03 10:40:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:40:06,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:40:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:40:06,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:40:06,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 10:40:06,361 INFO L87 Difference]: Start difference. First operand 93879 states and 100340 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 10:40:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:40:08,491 INFO L93 Difference]: Finished difference Result 190009 states and 202918 transitions. [2025-03-03 10:40:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:40:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 553 [2025-03-03 10:40:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:40:08,587 INFO L225 Difference]: With dead ends: 190009 [2025-03-03 10:40:08,587 INFO L226 Difference]: Without dead ends: 95381 [2025-03-03 10:40:08,639 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 10:40:08,639 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 760 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-03 10:40:08,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1006 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-03 10:40:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95381 states. [2025-03-03 10:40:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95381 to 88622. [2025-03-03 10:40:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88622 states, 88621 states have (on average 1.0587783933830581) internal successors, (93830), 88621 states have internal predecessors, (93830), 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 10:40:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88622 states to 88622 states and 93830 transitions. [2025-03-03 10:40:09,856 INFO L78 Accepts]: Start accepts. Automaton has 88622 states and 93830 transitions. Word has length 553 [2025-03-03 10:40:09,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:40:09,857 INFO L471 AbstractCegarLoop]: Abstraction has 88622 states and 93830 transitions. [2025-03-03 10:40:09,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 10:40:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 88622 states and 93830 transitions. [2025-03-03 10:40:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2025-03-03 10:40:09,869 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:40:09,869 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:40:09,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 10:40:09,869 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:40:09,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:40:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1973087374, now seen corresponding path program 1 times [2025-03-03 10:40:09,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:40:09,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306289493] [2025-03-03 10:40:09,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:09,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:40:09,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 571 statements into 1 equivalence classes. [2025-03-03 10:40:09,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 571 of 571 statements. [2025-03-03 10:40:09,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:09,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 509 proven. 257 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-03 10:40:10,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:40:10,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306289493] [2025-03-03 10:40:10,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306289493] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:40:10,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942230304] [2025-03-03 10:40:10,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:10,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:40:10,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:40:10,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:40:10,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 10:40:10,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 571 statements into 1 equivalence classes. [2025-03-03 10:40:10,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 571 of 571 statements. [2025-03-03 10:40:10,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:10,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:10,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:40:10,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:40:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2025-03-03 10:40:10,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:40:10,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942230304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:40:10,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:40:10,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-03 10:40:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056755252] [2025-03-03 10:40:10,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:40:10,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:40:10,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:40:10,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:40:10,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-03 10:40:10,553 INFO L87 Difference]: Start difference. First operand 88622 states and 93830 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 10:40:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:40:12,665 INFO L93 Difference]: Finished difference Result 195266 states and 207161 transitions. [2025-03-03 10:40:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:40:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 571 [2025-03-03 10:40:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:40:12,911 INFO L225 Difference]: With dead ends: 195266 [2025-03-03 10:40:12,911 INFO L226 Difference]: Without dead ends: 107397 [2025-03-03 10:40:12,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-03 10:40:12,957 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 830 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-03 10:40:12,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1139 Invalid, 2630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-03 10:40:13,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107397 states. [2025-03-03 10:40:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107397 to 106646. [2025-03-03 10:40:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106646 states, 106645 states have (on average 1.0543391626424117) internal successors, (112440), 106645 states have internal predecessors, (112440), 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 10:40:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106646 states to 106646 states and 112440 transitions. [2025-03-03 10:40:14,112 INFO L78 Accepts]: Start accepts. Automaton has 106646 states and 112440 transitions. Word has length 571 [2025-03-03 10:40:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:40:14,113 INFO L471 AbstractCegarLoop]: Abstraction has 106646 states and 112440 transitions. [2025-03-03 10:40:14,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 10:40:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 106646 states and 112440 transitions. [2025-03-03 10:40:14,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2025-03-03 10:40:14,156 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 10:40:14,156 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:14,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 10:40:14,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-03 10:40:14,357 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 10:40:14,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 10:40:14,358 INFO L85 PathProgramCache]: Analyzing trace with hash 241753318, now seen corresponding path program 1 times [2025-03-03 10:40:14,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 10:40:14,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779810079] [2025-03-03 10:40:14,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:14,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 10:40:14,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 945 statements into 1 equivalence classes. [2025-03-03 10:40:14,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 945 of 945 statements. [2025-03-03 10:40:14,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:14,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 544 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 10:40:16,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 10:40:16,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779810079] [2025-03-03 10:40:16,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779810079] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 10:40:16,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637115849] [2025-03-03 10:40:16,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 10:40:16,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:40:16,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 10:40:16,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 10:40:16,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 10:40:17,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 945 statements into 1 equivalence classes. [2025-03-03 10:40:17,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 945 of 945 statements. [2025-03-03 10:40:17,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 10:40:17,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 10:40:17,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 10:40:17,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 10:40:26,961 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2025-03-03 10:40:26,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 10:40:26,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637115849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 10:40:26,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 10:40:26,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-03-03 10:40:26,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805597377] [2025-03-03 10:40:26,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 10:40:26,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 10:40:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 10:40:26,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 10:40:26,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-03 10:40:26,963 INFO L87 Difference]: Start difference. First operand 106646 states and 112440 transitions. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 10:40:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 10:40:29,571 INFO L93 Difference]: Finished difference Result 258348 states and 273552 transitions. [2025-03-03 10:40:29,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 10:40:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 945 [2025-03-03 10:40:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 10:40:29,573 INFO L225 Difference]: With dead ends: 258348 [2025-03-03 10:40:29,573 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 10:40:29,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-03 10:40:29,650 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 762 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-03 10:40:29,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 563 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-03 10:40:29,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 10:40:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 10:40:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 10:40:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 10:40:29,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 945 [2025-03-03 10:40:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 10:40:29,651 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 10:40:29,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 10:40:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 10:40:29,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 10:40:29,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 10:40:29,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 10:40:29,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 10:40:29,857 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 10:40:29,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 10:40:32,832 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 10:40:32,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 10:40:32 BoogieIcfgContainer [2025-03-03 10:40:32,842 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 10:40:32,843 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 10:40:32,843 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 10:40:32,843 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 10:40:32,844 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 10:39:24" (3/4) ... [2025-03-03 10:40:32,845 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 10:40:32,880 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-03 10:40:32,884 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-03 10:40:32,888 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 10:40:32,891 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 10:40:33,114 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 10:40:33,114 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 10:40:33,114 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 10:40:33,115 INFO L158 Benchmark]: Toolchain (without parser) took 73758.71ms. Allocated memory was 142.6MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 92.6MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2025-03-03 10:40:33,115 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 10:40:33,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.17ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 92.6MB in the beginning and 68.2MB in the end (delta: 24.4MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2025-03-03 10:40:33,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.89ms. Allocated memory is still 151.0MB. Free memory was 68.2MB in the beginning and 36.7MB in the end (delta: 31.4MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2025-03-03 10:40:33,116 INFO L158 Benchmark]: Boogie Preprocessor took 331.92ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 36.7MB in the beginning and 251.1MB in the end (delta: -214.4MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2025-03-03 10:40:33,116 INFO L158 Benchmark]: IcfgBuilder took 3546.38ms. Allocated memory was 377.5MB in the beginning and 780.1MB in the end (delta: 402.7MB). Free memory was 251.1MB in the beginning and 300.4MB in the end (delta: -49.3MB). Peak memory consumption was 360.1MB. Max. memory is 16.1GB. [2025-03-03 10:40:33,117 INFO L158 Benchmark]: TraceAbstraction took 68446.20ms. Allocated memory was 780.1MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 300.4MB in the beginning and 1.2GB in the end (delta: -878.9MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-03-03 10:40:33,117 INFO L158 Benchmark]: Witness Printer took 271.16ms. Allocated memory is still 2.3GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 58.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-03 10:40:33,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 918.17ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 92.6MB in the beginning and 68.2MB in the end (delta: 24.4MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.89ms. Allocated memory is still 151.0MB. Free memory was 68.2MB in the beginning and 36.7MB in the end (delta: 31.4MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 331.92ms. Allocated memory was 151.0MB in the beginning and 377.5MB in the end (delta: 226.5MB). Free memory was 36.7MB in the beginning and 251.1MB in the end (delta: -214.4MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. * IcfgBuilder took 3546.38ms. Allocated memory was 377.5MB in the beginning and 780.1MB in the end (delta: 402.7MB). Free memory was 251.1MB in the beginning and 300.4MB in the end (delta: -49.3MB). Peak memory consumption was 360.1MB. Max. memory is 16.1GB. * TraceAbstraction took 68446.20ms. Allocated memory was 780.1MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 300.4MB in the beginning and 1.2GB in the end (delta: -878.9MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 271.16ms. Allocated memory is still 2.3GB. Free memory was 1.2GB in the beginning and 1.1GB in the end (delta: 58.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 121]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 818 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.4s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14641 SdHoareTripleChecker+Valid, 34.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14641 mSDsluCounter, 14023 SdHoareTripleChecker+Invalid, 28.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 8493 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40598 IncrementalHoareTripleChecker+Invalid, 49091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8493 mSolverCounterUnsat, 13878 mSDtfsCounter, 40598 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1907 GetRequests, 1876 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106646occurred in iteration=15, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 33797 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 7382 NumberOfCodeBlocks, 7382 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7363 ConstructedInterpolants, 0 QuantifiedInterpolants, 22936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2259 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 5778/6204 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4828]: Location Invariant Derived location invariant: ((((((((((((((a17 <= 109) && (a7 == 12)) || (((a5 != 4) && (a7 == 12)) && (a24 <= 13))) || ((a2 <= 170) && (a5 != 4))) || (6 <= a5)) || (((a17 <= 109) && (14 <= a7)) && (a24 <= 13))) || ((a2 <= 170) && (a17 <= 109))) || ((a2 <= 170) && (a7 == 12))) || (15 <= a24)) || ((a2 <= 170) && (a24 <= 13))) || ((a2 <= 170) && (14 <= a7))) || (5 == a5)) || (190 <= a2)) || (((a17 <= 109) && (a5 != 4)) && (a24 <= 13))) RESULT: Ultimate proved your program to be correct! [2025-03-03 10:40:33,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE