./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/Problem13_label56.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 21992ce5086310b9eccd33893912bc55e4a94502535426b80db5bcf53a1c73cc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:36:01,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:36:01,067 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:36:01,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:36:01,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:36:01,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:36:01,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:36:01,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:36:01,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:36:01,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:36:01,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:36:01,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:36:01,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:36:01,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:36:01,100 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:36:01,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:36:01,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:36:01,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:36:01,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:36:01,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:36:01,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:36:01,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:36:01,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:36:01,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:36:01,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:36:01,108 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:36:01,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:36:01,109 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:36:01,109 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:36:01,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:36:01,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:36:01,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:36:01,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:36:01,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:36:01,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:36:01,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:36:01,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:36:01,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:36:01,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:36:01,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:36:01,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:36:01,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:36:01,113 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21992ce5086310b9eccd33893912bc55e4a94502535426b80db5bcf53a1c73cc [2024-11-09 19:36:01,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:36:01,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:36:01,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:36:01,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:36:01,380 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:36:01,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label56.c [2024-11-09 19:36:02,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:36:03,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:36:03,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label56.c [2024-11-09 19:36:03,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69617fa6/6f0522c5dbd343c9ad5c7bb48d5a5077/FLAGa88200654 [2024-11-09 19:36:03,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69617fa6/6f0522c5dbd343c9ad5c7bb48d5a5077 [2024-11-09 19:36:03,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:36:03,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:36:03,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:36:03,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:36:03,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:36:03,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:36:03" (1/1) ... [2024-11-09 19:36:03,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4006cb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:03, skipping insertion in model container [2024-11-09 19:36:03,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:36:03" (1/1) ... [2024-11-09 19:36:03,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:36:03,472 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/Problem13_label56.c[7559,7572] [2024-11-09 19:36:04,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:36:04,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:36:04,108 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/Problem13_label56.c[7559,7572] [2024-11-09 19:36:04,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:36:04,533 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:36:04,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04 WrapperNode [2024-11-09 19:36:04,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:36:04,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:36:04,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:36:04,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:36:04,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:04,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,039 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:36:05,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:36:05,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:36:05,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:36:05,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:36:05,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,462 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:36:05,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:36:05,787 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:36:05,787 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:36:05,787 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:36:05,788 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (1/1) ... [2024-11-09 19:36:05,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:36:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:36:05,822 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) [2024-11-09 19:36:05,824 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 [2024-11-09 19:36:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:36:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:36:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:36:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:36:05,927 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:36:05,929 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:36:10,848 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:36:10,849 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:36:10,849 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:36:11,069 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:36:11,070 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:36:11,111 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:36:11,112 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:36:11,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:36:11 BoogieIcfgContainer [2024-11-09 19:36:11,113 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:36:11,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:36:11,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:36:11,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:36:11,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:36:03" (1/3) ... [2024-11-09 19:36:11,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40baa036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:36:11, skipping insertion in model container [2024-11-09 19:36:11,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:36:04" (2/3) ... [2024-11-09 19:36:11,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40baa036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:36:11, skipping insertion in model container [2024-11-09 19:36:11,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:36:11" (3/3) ... [2024-11-09 19:36:11,121 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label56.c [2024-11-09 19:36:11,137 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:36:11,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:36:11,217 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:36:11,224 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;@2af32070, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:36:11,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:36:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 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) [2024-11-09 19:36:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 19:36:11,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:11,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:11,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:11,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1681722291, now seen corresponding path program 1 times [2024-11-09 19:36:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:11,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705064427] [2024-11-09 19:36:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:11,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:11,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705064427] [2024-11-09 19:36:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705064427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:11,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548985654] [2024-11-09 19:36:11,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:11,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:11,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:11,575 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 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 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2024-11-09 19:36:15,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:15,905 INFO L93 Difference]: Finished difference Result 3041 states and 7797 transitions. [2024-11-09 19:36:15,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:15,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2024-11-09 19:36:15,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:15,930 INFO L225 Difference]: With dead ends: 3041 [2024-11-09 19:36:15,930 INFO L226 Difference]: Without dead ends: 1876 [2024-11-09 19:36:15,935 INFO L431 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 [2024-11-09 19:36:15,937 INFO L432 NwaCegarLoop]: 990 mSDtfsCounter, 1568 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 3937 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 4795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 3937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:15,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 1146 Invalid, 4795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 3937 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:36:15,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-09 19:36:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1862. [2024-11-09 19:36:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 2.3127350886620097) internal successors, (4304), 1861 states have internal predecessors, (4304), 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) [2024-11-09 19:36:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 4304 transitions. [2024-11-09 19:36:16,030 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 4304 transitions. Word has length 55 [2024-11-09 19:36:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:16,031 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 4304 transitions. [2024-11-09 19:36:16,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2024-11-09 19:36:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 4304 transitions. [2024-11-09 19:36:16,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 19:36:16,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:16,034 INFO L215 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, 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] [2024-11-09 19:36:16,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:36:16,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:16,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:16,035 INFO L85 PathProgramCache]: Analyzing trace with hash 744826611, now seen corresponding path program 1 times [2024-11-09 19:36:16,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:16,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992052144] [2024-11-09 19:36:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:16,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:16,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:16,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992052144] [2024-11-09 19:36:16,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992052144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:16,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:16,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:16,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926092945] [2024-11-09 19:36:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:16,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:16,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:16,226 INFO L87 Difference]: Start difference. First operand 1862 states and 4304 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2024-11-09 19:36:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:20,884 INFO L93 Difference]: Finished difference Result 5416 states and 12710 transitions. [2024-11-09 19:36:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:20,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 128 [2024-11-09 19:36:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:20,897 INFO L225 Difference]: With dead ends: 5416 [2024-11-09 19:36:20,898 INFO L226 Difference]: Without dead ends: 3556 [2024-11-09 19:36:20,901 INFO L431 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 [2024-11-09 19:36:20,902 INFO L432 NwaCegarLoop]: 906 mSDtfsCounter, 1581 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 5217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:20,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 1042 Invalid, 5217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:36:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-11-09 19:36:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3481. [2024-11-09 19:36:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 3480 states have (on average 2.3123563218390806) internal successors, (8047), 3480 states have internal predecessors, (8047), 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) [2024-11-09 19:36:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 8047 transitions. [2024-11-09 19:36:20,976 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 8047 transitions. Word has length 128 [2024-11-09 19:36:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:20,977 INFO L471 AbstractCegarLoop]: Abstraction has 3481 states and 8047 transitions. [2024-11-09 19:36:20,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2024-11-09 19:36:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 8047 transitions. [2024-11-09 19:36:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 19:36:20,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:20,980 INFO L215 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, 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] [2024-11-09 19:36:20,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:36:20,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:20,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:20,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1993841369, now seen corresponding path program 1 times [2024-11-09 19:36:20,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:20,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766322490] [2024-11-09 19:36:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:20,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:21,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766322490] [2024-11-09 19:36:21,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766322490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:21,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:21,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:21,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044876043] [2024-11-09 19:36:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:21,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:36:21,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:21,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:36:21,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:36:21,389 INFO L87 Difference]: Start difference. First operand 3481 states and 8047 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-09 19:36:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:27,199 INFO L93 Difference]: Finished difference Result 10932 states and 25367 transitions. [2024-11-09 19:36:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:36:27,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 142 [2024-11-09 19:36:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:27,228 INFO L225 Difference]: With dead ends: 10932 [2024-11-09 19:36:27,229 INFO L226 Difference]: Without dead ends: 7453 [2024-11-09 19:36:27,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:36:27,233 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 4739 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 6271 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 7187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 6271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:27,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 1013 Invalid, 7187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 6271 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 19:36:27,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2024-11-09 19:36:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 7452. [2024-11-09 19:36:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7451 states have (on average 2.2065494564487986) internal successors, (16441), 7451 states have internal predecessors, (16441), 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) [2024-11-09 19:36:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 16441 transitions. [2024-11-09 19:36:27,343 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 16441 transitions. Word has length 142 [2024-11-09 19:36:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:27,345 INFO L471 AbstractCegarLoop]: Abstraction has 7452 states and 16441 transitions. [2024-11-09 19:36:27,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-11-09 19:36:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 16441 transitions. [2024-11-09 19:36:27,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-09 19:36:27,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:27,350 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:27,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:36:27,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:27,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1006529984, now seen corresponding path program 1 times [2024-11-09 19:36:27,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:27,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980287994] [2024-11-09 19:36:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:27,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 19:36:27,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:27,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980287994] [2024-11-09 19:36:27,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980287994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:27,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:27,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:27,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376406844] [2024-11-09 19:36:27,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:27,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:27,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:27,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:27,511 INFO L87 Difference]: Start difference. First operand 7452 states and 16441 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2024-11-09 19:36:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:31,148 INFO L93 Difference]: Finished difference Result 20451 states and 45871 transitions. [2024-11-09 19:36:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:31,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 224 [2024-11-09 19:36:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:31,191 INFO L225 Difference]: With dead ends: 20451 [2024-11-09 19:36:31,191 INFO L226 Difference]: Without dead ends: 13789 [2024-11-09 19:36:31,197 INFO L431 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 [2024-11-09 19:36:31,199 INFO L432 NwaCegarLoop]: 835 mSDtfsCounter, 1623 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4001 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 4752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 4001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:31,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 969 Invalid, 4752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 4001 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 19:36:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13789 states. [2024-11-09 19:36:31,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13789 to 13779. [2024-11-09 19:36:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13779 states, 13778 states have (on average 2.149876614893308) internal successors, (29621), 13778 states have internal predecessors, (29621), 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) [2024-11-09 19:36:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13779 states to 13779 states and 29621 transitions. [2024-11-09 19:36:31,400 INFO L78 Accepts]: Start accepts. Automaton has 13779 states and 29621 transitions. Word has length 224 [2024-11-09 19:36:31,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:31,401 INFO L471 AbstractCegarLoop]: Abstraction has 13779 states and 29621 transitions. [2024-11-09 19:36:31,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2024-11-09 19:36:31,402 INFO L276 IsEmpty]: Start isEmpty. Operand 13779 states and 29621 transitions. [2024-11-09 19:36:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-09 19:36:31,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:31,407 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:31,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:36:31,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:31,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:31,408 INFO L85 PathProgramCache]: Analyzing trace with hash 176552270, now seen corresponding path program 1 times [2024-11-09 19:36:31,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:31,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095902138] [2024-11-09 19:36:31,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:31,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095902138] [2024-11-09 19:36:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095902138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:31,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:31,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994564344] [2024-11-09 19:36:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:31,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:36:31,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:36:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:36:31,638 INFO L87 Difference]: Start difference. First operand 13779 states and 29621 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-09 19:36:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:38,414 INFO L93 Difference]: Finished difference Result 39597 states and 86213 transitions. [2024-11-09 19:36:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:36:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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 238 [2024-11-09 19:36:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:38,463 INFO L225 Difference]: With dead ends: 39597 [2024-11-09 19:36:38,464 INFO L226 Difference]: Without dead ends: 26608 [2024-11-09 19:36:38,476 INFO L431 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 [2024-11-09 19:36:38,480 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3173 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 9264 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 10479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 9264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:38,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 694 Invalid, 10479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1215 Valid, 9264 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 19:36:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26608 states. [2024-11-09 19:36:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26608 to 26487. [2024-11-09 19:36:38,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26487 states, 26486 states have (on average 2.1450577663671373) internal successors, (56814), 26486 states have internal predecessors, (56814), 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) [2024-11-09 19:36:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26487 states to 26487 states and 56814 transitions. [2024-11-09 19:36:38,806 INFO L78 Accepts]: Start accepts. Automaton has 26487 states and 56814 transitions. Word has length 238 [2024-11-09 19:36:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:38,807 INFO L471 AbstractCegarLoop]: Abstraction has 26487 states and 56814 transitions. [2024-11-09 19:36:38,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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) [2024-11-09 19:36:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 26487 states and 56814 transitions. [2024-11-09 19:36:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-09 19:36:38,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:38,811 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:38,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:36:38,811 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:38,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 17828750, now seen corresponding path program 1 times [2024-11-09 19:36:38,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:38,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799061464] [2024-11-09 19:36:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:36:38,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:38,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799061464] [2024-11-09 19:36:38,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799061464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:38,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:38,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:38,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762861054] [2024-11-09 19:36:38,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:39,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:39,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:39,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:39,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:39,000 INFO L87 Difference]: Start difference. First operand 26487 states and 56814 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 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) [2024-11-09 19:36:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:42,911 INFO L93 Difference]: Finished difference Result 76607 states and 165178 transitions. [2024-11-09 19:36:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:42,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 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 267 [2024-11-09 19:36:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:42,995 INFO L225 Difference]: With dead ends: 76607 [2024-11-09 19:36:42,996 INFO L226 Difference]: Without dead ends: 50910 [2024-11-09 19:36:43,021 INFO L431 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 [2024-11-09 19:36:43,024 INFO L432 NwaCegarLoop]: 1000 mSDtfsCounter, 1528 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 4709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:43,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1147 Invalid, 4709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:36:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50910 states. [2024-11-09 19:36:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50910 to 46173. [2024-11-09 19:36:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46173 states, 46172 states have (on average 2.0872823356146584) internal successors, (96374), 46172 states have internal predecessors, (96374), 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) [2024-11-09 19:36:43,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46173 states to 46173 states and 96374 transitions. [2024-11-09 19:36:43,805 INFO L78 Accepts]: Start accepts. Automaton has 46173 states and 96374 transitions. Word has length 267 [2024-11-09 19:36:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:43,809 INFO L471 AbstractCegarLoop]: Abstraction has 46173 states and 96374 transitions. [2024-11-09 19:36:43,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 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) [2024-11-09 19:36:43,809 INFO L276 IsEmpty]: Start isEmpty. Operand 46173 states and 96374 transitions. [2024-11-09 19:36:43,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-09 19:36:43,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:43,815 INFO L215 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, 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, 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] [2024-11-09 19:36:43,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:36:43,815 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:43,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:43,815 INFO L85 PathProgramCache]: Analyzing trace with hash -567677384, now seen corresponding path program 1 times [2024-11-09 19:36:43,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:43,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974180211] [2024-11-09 19:36:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 344 proven. 26 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:36:44,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974180211] [2024-11-09 19:36:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974180211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:36:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681278697] [2024-11-09 19:36:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:44,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:36:44,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:36:44,671 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) [2024-11-09 19:36:44,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:36:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:44,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:36:44,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:36:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:36:45,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:36:45,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681278697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:45,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:36:45,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:36:45,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756527415] [2024-11-09 19:36:45,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:45,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:45,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:45,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:45,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:36:45,261 INFO L87 Difference]: Start difference. First operand 46173 states and 96374 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-09 19:36:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:49,693 INFO L93 Difference]: Finished difference Result 127015 states and 266802 transitions. [2024-11-09 19:36:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:49,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 355 [2024-11-09 19:36:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:49,909 INFO L225 Difference]: With dead ends: 127015 [2024-11-09 19:36:49,909 INFO L226 Difference]: Without dead ends: 81632 [2024-11-09 19:36:50,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:36:50,042 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1453 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 4662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:50,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 1140 Invalid, 4662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 19:36:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81632 states. [2024-11-09 19:36:50,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81632 to 79268. [2024-11-09 19:36:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79268 states, 79267 states have (on average 2.0418206819988143) internal successors, (161849), 79267 states have internal predecessors, (161849), 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) [2024-11-09 19:36:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79268 states to 79268 states and 161849 transitions. [2024-11-09 19:36:51,364 INFO L78 Accepts]: Start accepts. Automaton has 79268 states and 161849 transitions. Word has length 355 [2024-11-09 19:36:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:51,364 INFO L471 AbstractCegarLoop]: Abstraction has 79268 states and 161849 transitions. [2024-11-09 19:36:51,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-09 19:36:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 79268 states and 161849 transitions. [2024-11-09 19:36:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-09 19:36:51,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:51,373 INFO L215 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, 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, 2, 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] [2024-11-09 19:36:51,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:36:51,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:36:51,574 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:51,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash -362894314, now seen corresponding path program 1 times [2024-11-09 19:36:51,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:51,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978444552] [2024-11-09 19:36:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:51,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:36:51,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978444552] [2024-11-09 19:36:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978444552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:51,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:51,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:51,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680090698] [2024-11-09 19:36:51,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:51,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:51,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:51,865 INFO L87 Difference]: Start difference. First operand 79268 states and 161849 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-09 19:36:56,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:56,308 INFO L93 Difference]: Finished difference Result 193219 states and 397086 transitions. [2024-11-09 19:36:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:56,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 356 [2024-11-09 19:36:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:56,473 INFO L225 Difference]: With dead ends: 193219 [2024-11-09 19:36:56,473 INFO L226 Difference]: Without dead ends: 114741 [2024-11-09 19:36:56,507 INFO L431 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 [2024-11-09 19:36:56,508 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 1518 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 3871 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 4739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 3871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:56,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1059 Invalid, 4739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 3871 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:36:56,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114741 states. [2024-11-09 19:36:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114741 to 107637. [2024-11-09 19:36:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107637 states, 107636 states have (on average 2.0354992753353898) internal successors, (219093), 107636 states have internal predecessors, (219093), 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) [2024-11-09 19:36:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107637 states to 107637 states and 219093 transitions. [2024-11-09 19:36:58,423 INFO L78 Accepts]: Start accepts. Automaton has 107637 states and 219093 transitions. Word has length 356 [2024-11-09 19:36:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:58,423 INFO L471 AbstractCegarLoop]: Abstraction has 107637 states and 219093 transitions. [2024-11-09 19:36:58,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-09 19:36:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 107637 states and 219093 transitions. [2024-11-09 19:36:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-09 19:36:58,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:58,427 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:58,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:36:58,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:58,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:58,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1433072733, now seen corresponding path program 1 times [2024-11-09 19:36:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:58,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456833678] [2024-11-09 19:36:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:58,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:36:58,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:58,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456833678] [2024-11-09 19:36:58,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456833678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:58,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:58,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496573803] [2024-11-09 19:36:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:58,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:58,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:58,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:58,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:58,566 INFO L87 Difference]: Start difference. First operand 107637 states and 219093 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) [2024-11-09 19:37:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:37:02,912 INFO L93 Difference]: Finished difference Result 222342 states and 451673 transitions. [2024-11-09 19:37:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:37:02,912 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 375 [2024-11-09 19:37:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:37:03,123 INFO L225 Difference]: With dead ends: 222342 [2024-11-09 19:37:03,124 INFO L226 Difference]: Without dead ends: 109187 [2024-11-09 19:37:03,188 INFO L431 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 [2024-11-09 19:37:03,189 INFO L432 NwaCegarLoop]: 2225 mSDtfsCounter, 1753 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:37:03,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 2360 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3780 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 19:37:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109187 states. [2024-11-09 19:37:04,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109187 to 100510. [2024-11-09 19:37:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100510 states, 100509 states have (on average 1.9955625864350457) internal successors, (200572), 100509 states have internal predecessors, (200572), 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) [2024-11-09 19:37:04,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100510 states to 100510 states and 200572 transitions. [2024-11-09 19:37:04,637 INFO L78 Accepts]: Start accepts. Automaton has 100510 states and 200572 transitions. Word has length 375 [2024-11-09 19:37:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:37:04,637 INFO L471 AbstractCegarLoop]: Abstraction has 100510 states and 200572 transitions. [2024-11-09 19:37:04,637 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) [2024-11-09 19:37:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 100510 states and 200572 transitions. [2024-11-09 19:37:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-09 19:37:04,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:37:04,642 INFO L215 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, 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, 2, 2, 2, 2, 2, 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] [2024-11-09 19:37:04,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:37:04,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:37:04,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:37:04,643 INFO L85 PathProgramCache]: Analyzing trace with hash -297777640, now seen corresponding path program 1 times [2024-11-09 19:37:04,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:37:04,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215037421] [2024-11-09 19:37:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:37:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:37:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:37:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 274 proven. 114 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:37:06,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:37:06,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215037421] [2024-11-09 19:37:06,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215037421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:37:06,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868515788] [2024-11-09 19:37:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:37:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:37:06,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:37:06,497 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) [2024-11-09 19:37:06,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:37:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:37:06,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:37:06,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:37:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-09 19:37:06,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:37:06,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868515788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:37:06,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:37:06,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-09 19:37:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363237751] [2024-11-09 19:37:06,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:37:06,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:37:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:37:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:37:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:37:06,843 INFO L87 Difference]: Start difference. First operand 100510 states and 200572 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-11-09 19:37:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:37:10,604 INFO L93 Difference]: Finished difference Result 200228 states and 399632 transitions. [2024-11-09 19:37:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:37:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 384 [2024-11-09 19:37:10,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:37:10,749 INFO L225 Difference]: With dead ends: 200228 [2024-11-09 19:37:10,749 INFO L226 Difference]: Without dead ends: 100508 [2024-11-09 19:37:10,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:37:10,782 INFO L432 NwaCegarLoop]: 2051 mSDtfsCounter, 1827 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3862 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 3862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:37:10,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 2131 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 3862 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:37:10,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100508 states. [2024-11-09 19:37:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100508 to 99719. [2024-11-09 19:37:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99719 states, 99718 states have (on average 1.9767945606610642) internal successors, (197122), 99718 states have internal predecessors, (197122), 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) [2024-11-09 19:37:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99719 states to 99719 states and 197122 transitions. [2024-11-09 19:37:12,240 INFO L78 Accepts]: Start accepts. Automaton has 99719 states and 197122 transitions. Word has length 384 [2024-11-09 19:37:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:37:12,241 INFO L471 AbstractCegarLoop]: Abstraction has 99719 states and 197122 transitions. [2024-11-09 19:37:12,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-11-09 19:37:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 99719 states and 197122 transitions. [2024-11-09 19:37:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-09 19:37:12,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:37:12,246 INFO L215 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:37:12,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:37:12,446 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,SelfDestructingSolverStorable9 [2024-11-09 19:37:12,447 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:37:12,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:37:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1101527131, now seen corresponding path program 1 times [2024-11-09 19:37:12,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:37:12,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378892413] [2024-11-09 19:37:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:37:12,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:37:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:37:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-09 19:37:12,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:37:12,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378892413] [2024-11-09 19:37:12,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378892413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:37:12,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:37:12,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:37:12,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938554946] [2024-11-09 19:37:12,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:37:12,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:37:12,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:37:12,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:37:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:37:12,658 INFO L87 Difference]: Start difference. First operand 99719 states and 197122 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2024-11-09 19:37:17,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:37:17,700 INFO L93 Difference]: Finished difference Result 231757 states and 459630 transitions. [2024-11-09 19:37:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:37:17,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 415 [2024-11-09 19:37:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:37:17,898 INFO L225 Difference]: With dead ends: 231757 [2024-11-09 19:37:17,898 INFO L226 Difference]: Without dead ends: 132039 [2024-11-09 19:37:17,944 INFO L431 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 [2024-11-09 19:37:17,945 INFO L432 NwaCegarLoop]: 781 mSDtfsCounter, 1604 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3831 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 3831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:37:17,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 863 Invalid, 4746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 3831 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:37:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132039 states. [2024-11-09 19:37:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132039 to 129658. [2024-11-09 19:37:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129657 states have (on average 1.979723424111309) internal successors, (256685), 129657 states have internal predecessors, (256685), 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) [2024-11-09 19:37:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 256685 transitions. [2024-11-09 19:37:19,665 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 256685 transitions. Word has length 415 [2024-11-09 19:37:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:37:19,665 INFO L471 AbstractCegarLoop]: Abstraction has 129658 states and 256685 transitions. [2024-11-09 19:37:19,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2024-11-09 19:37:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 256685 transitions. [2024-11-09 19:37:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-09 19:37:19,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:37:19,671 INFO L215 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:37:19,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:37:19,671 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:37:19,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:37:19,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1522816733, now seen corresponding path program 1 times [2024-11-09 19:37:19,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:37:19,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781767540] [2024-11-09 19:37:19,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:37:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:37:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:37:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 437 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-09 19:37:20,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:37:20,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781767540] [2024-11-09 19:37:20,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781767540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:37:20,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:37:20,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:37:20,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522386025] [2024-11-09 19:37:20,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:37:20,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:37:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:37:20,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:37:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:37:20,538 INFO L87 Difference]: Start difference. First operand 129658 states and 256685 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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)