./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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/Problem14_label17.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 eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 17:04:06,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 17:04:06,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 17:04:06,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 17:04:06,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 17:04:06,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 17:04:06,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 17:04:06,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 17:04:06,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 17:04:06,221 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 17:04:06,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 17:04:06,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 17:04:06,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 17:04:06,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 17:04:06,225 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 17:04:06,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 17:04:06,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 17:04:06,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 17:04:06,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 17:04:06,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 17:04:06,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 17:04:06,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 17:04:06,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 17:04:06,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 17:04:06,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 17:04:06,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 17:04:06,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 17:04:06,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 17:04:06,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 17:04:06,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 17:04:06,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 17:04:06,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 17:04:06,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:04:06,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 17:04:06,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 17:04:06,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 17:04:06,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 17:04:06,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 17:04:06,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 17:04:06,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 17:04:06,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 17:04:06,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 17:04:06,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 [2024-11-11 17:04:06,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 17:04:06,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 17:04:06,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 17:04:06,427 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 17:04:06,427 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 17:04:06,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2024-11-11 17:04:07,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 17:04:08,024 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 17:04:08,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2024-11-11 17:04:08,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b1c6a62/32bc67a90fa241c29b9a72adc4b5a5ca/FLAGdf251f97e [2024-11-11 17:04:08,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b1c6a62/32bc67a90fa241c29b9a72adc4b5a5ca [2024-11-11 17:04:08,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 17:04:08,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 17:04:08,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 17:04:08,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 17:04:08,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 17:04:08,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5577a124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08, skipping insertion in model container [2024-11-11 17:04:08,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 17:04:08,614 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/Problem14_label17.c[5746,5759] [2024-11-11 17:04:08,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:04:08,768 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 17:04:08,788 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/Problem14_label17.c[5746,5759] [2024-11-11 17:04:08,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:04:08,877 INFO L204 MainTranslator]: Completed translation [2024-11-11 17:04:08,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08 WrapperNode [2024-11-11 17:04:08,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 17:04:08,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 17:04:08,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 17:04:08,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 17:04:08,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,965 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-11 17:04:08,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 17:04:08,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 17:04:08,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 17:04:08,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 17:04:08,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:08,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,018 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]. [2024-11-11 17:04:09,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 17:04:09,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 17:04:09,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 17:04:09,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 17:04:09,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (1/1) ... [2024-11-11 17:04:09,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:04:09,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:09,096 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) [2024-11-11 17:04:09,099 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 [2024-11-11 17:04:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 17:04:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 17:04:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 17:04:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 17:04:09,183 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 17:04:09,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 17:04:09,990 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-11 17:04:09,993 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 17:04:10,010 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 17:04:10,012 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 17:04:10,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:04:10 BoogieIcfgContainer [2024-11-11 17:04:10,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 17:04:10,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 17:04:10,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 17:04:10,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 17:04:10,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 05:04:08" (1/3) ... [2024-11-11 17:04:10,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5189083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:04:10, skipping insertion in model container [2024-11-11 17:04:10,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:04:08" (2/3) ... [2024-11-11 17:04:10,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5189083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:04:10, skipping insertion in model container [2024-11-11 17:04:10,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:04:10" (3/3) ... [2024-11-11 17:04:10,020 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2024-11-11 17:04:10,032 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 17:04:10,033 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 17:04:10,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 17:04:10,095 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;@28ebc9a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 17:04:10,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 17:04:10,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2024-11-11 17:04:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-11 17:04:10,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:10,107 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:10,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:10,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:10,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2024-11-11 17:04:10,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:10,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733098551] [2024-11-11 17:04:10,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:04:10,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733098551] [2024-11-11 17:04:10,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733098551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:10,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:04:10,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306849700] [2024-11-11 17:04:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:10,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:10,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:10,552 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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) [2024-11-11 17:04:11,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:11,317 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2024-11-11 17:04:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:11,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2024-11-11 17:04:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:11,330 INFO L225 Difference]: With dead ends: 669 [2024-11-11 17:04:11,330 INFO L226 Difference]: Without dead ends: 360 [2024-11-11 17:04:11,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:11,336 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 154 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:11,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:04:11,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-11 17:04:11,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-11 17:04:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 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) [2024-11-11 17:04:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2024-11-11 17:04:11,382 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 56 [2024-11-11 17:04:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:11,382 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2024-11-11 17:04:11,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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) [2024-11-11 17:04:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2024-11-11 17:04:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 17:04:11,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:11,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 17:04:11,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 17:04:11,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:11,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:11,387 INFO L85 PathProgramCache]: Analyzing trace with hash 448247055, now seen corresponding path program 1 times [2024-11-11 17:04:11,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:11,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082804530] [2024-11-11 17:04:11,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:11,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:04:11,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:11,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082804530] [2024-11-11 17:04:11,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082804530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:11,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:11,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:04:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595749502] [2024-11-11 17:04:11,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:11,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:11,547 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2024-11-11 17:04:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:12,071 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2024-11-11 17:04:12,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:12,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2024-11-11 17:04:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:12,074 INFO L225 Difference]: With dead ends: 1074 [2024-11-11 17:04:12,074 INFO L226 Difference]: Without dead ends: 716 [2024-11-11 17:04:12,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:12,077 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:12,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 95 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:04:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-11 17:04:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2024-11-11 17:04:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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) [2024-11-11 17:04:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2024-11-11 17:04:12,098 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 131 [2024-11-11 17:04:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:12,099 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2024-11-11 17:04:12,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2024-11-11 17:04:12,099 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2024-11-11 17:04:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 17:04:12,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:12,101 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 17:04:12,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 17:04:12,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:12,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash -596921339, now seen corresponding path program 1 times [2024-11-11 17:04:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:12,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456990884] [2024-11-11 17:04:12,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:12,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:04:12,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456990884] [2024-11-11 17:04:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456990884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:12,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780321113] [2024-11-11 17:04:12,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:12,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:04:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:04:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:04:12,340 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-11-11 17:04:13,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:13,114 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2024-11-11 17:04:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:04:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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 135 [2024-11-11 17:04:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:13,120 INFO L225 Difference]: With dead ends: 1964 [2024-11-11 17:04:13,120 INFO L226 Difference]: Without dead ends: 1250 [2024-11-11 17:04:13,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:04:13,122 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:13,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:04:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-11 17:04:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2024-11-11 17:04:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 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) [2024-11-11 17:04:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2024-11-11 17:04:13,145 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 135 [2024-11-11 17:04:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:13,145 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2024-11-11 17:04:13,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-11-11 17:04:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2024-11-11 17:04:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-11 17:04:13,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:13,149 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:13,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 17:04:13,149 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:13,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:13,150 INFO L85 PathProgramCache]: Analyzing trace with hash -452523719, now seen corresponding path program 1 times [2024-11-11 17:04:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:13,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611655300] [2024-11-11 17:04:13,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:13,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 17:04:13,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:13,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611655300] [2024-11-11 17:04:13,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611655300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:13,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:13,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45582676] [2024-11-11 17:04:13,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:13,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:04:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:04:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:04:13,499 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-11 17:04:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:14,357 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2024-11-11 17:04:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:04:14,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 215 [2024-11-11 17:04:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:14,364 INFO L225 Difference]: With dead ends: 2705 [2024-11-11 17:04:14,364 INFO L226 Difference]: Without dead ends: 1606 [2024-11-11 17:04:14,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:04:14,367 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:14,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 17:04:14,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-11 17:04:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2024-11-11 17:04:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 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) [2024-11-11 17:04:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2024-11-11 17:04:14,388 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215 [2024-11-11 17:04:14,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:14,388 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2024-11-11 17:04:14,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-11 17:04:14,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2024-11-11 17:04:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-11 17:04:14,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:14,392 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 17:04:14,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 17:04:14,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:14,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:14,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1042976344, now seen corresponding path program 1 times [2024-11-11 17:04:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:14,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706305811] [2024-11-11 17:04:14,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-11 17:04:14,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706305811] [2024-11-11 17:04:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706305811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855527321] [2024-11-11 17:04:14,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:14,784 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) [2024-11-11 17:04:14,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 17:04:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:14,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:14,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-11 17:04:15,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:15,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855527321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:15,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:15,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-11 17:04:15,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463919125] [2024-11-11 17:04:15,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:15,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:15,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:15,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:15,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:15,198 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2024-11-11 17:04:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:15,637 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2024-11-11 17:04:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 342 [2024-11-11 17:04:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:15,642 INFO L225 Difference]: With dead ends: 3388 [2024-11-11 17:04:15,643 INFO L226 Difference]: Without dead ends: 1962 [2024-11-11 17:04:15,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:15,645 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:15,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-11 17:04:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2024-11-11 17:04:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 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) [2024-11-11 17:04:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2024-11-11 17:04:15,669 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342 [2024-11-11 17:04:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:15,669 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2024-11-11 17:04:15,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2024-11-11 17:04:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2024-11-11 17:04:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-11 17:04:15,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:15,673 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2024-11-11 17:04:15,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 17:04:15,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:15,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:15,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash 246905886, now seen corresponding path program 1 times [2024-11-11 17:04:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457037985] [2024-11-11 17:04:15,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:15,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-11 17:04:16,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:16,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457037985] [2024-11-11 17:04:16,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457037985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:16,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868959409] [2024-11-11 17:04:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:16,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:16,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:16,235 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2024-11-11 17:04:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:16,641 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2024-11-11 17:04:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:16,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 346 [2024-11-11 17:04:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:16,647 INFO L225 Difference]: With dead ends: 3744 [2024-11-11 17:04:16,647 INFO L226 Difference]: Without dead ends: 2140 [2024-11-11 17:04:16,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:16,650 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:16,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:16,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-11-11 17:04:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2024-11-11 17:04:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 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) [2024-11-11 17:04:16,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2024-11-11 17:04:16,677 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 346 [2024-11-11 17:04:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:16,677 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2024-11-11 17:04:16,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2024-11-11 17:04:16,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2024-11-11 17:04:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-11 17:04:16,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:16,680 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-11 17:04:16,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 17:04:16,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:16,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1148447004, now seen corresponding path program 1 times [2024-11-11 17:04:16,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:16,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562245714] [2024-11-11 17:04:16,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:16,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:04:16,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:16,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562245714] [2024-11-11 17:04:16,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562245714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:16,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196321826] [2024-11-11 17:04:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:16,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:16,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:16,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:16,852 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-11 17:04:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:17,301 INFO L93 Difference]: Finished difference Result 4634 states and 5295 transitions. [2024-11-11 17:04:17,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:17,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 373 [2024-11-11 17:04:17,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:17,307 INFO L225 Difference]: With dead ends: 4634 [2024-11-11 17:04:17,308 INFO L226 Difference]: Without dead ends: 2674 [2024-11-11 17:04:17,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:17,311 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 125 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:17,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 258 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2024-11-11 17:04:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2024-11-11 17:04:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1208380097268986) internal successors, (2996), 2673 states have internal predecessors, (2996), 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) [2024-11-11 17:04:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2996 transitions. [2024-11-11 17:04:17,341 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2996 transitions. Word has length 373 [2024-11-11 17:04:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:17,342 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 2996 transitions. [2024-11-11 17:04:17,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-11 17:04:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2996 transitions. [2024-11-11 17:04:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-11 17:04:17,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:17,345 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:17,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 17:04:17,346 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:17,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1347609353, now seen corresponding path program 1 times [2024-11-11 17:04:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:17,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247379258] [2024-11-11 17:04:17,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:17,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-11 17:04:17,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:17,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247379258] [2024-11-11 17:04:17,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247379258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:17,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160832833] [2024-11-11 17:04:17,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:17,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:17,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:17,648 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) [2024-11-11 17:04:17,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 17:04:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:17,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:17,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:04:17,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160832833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:17,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:17,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 17:04:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378063817] [2024-11-11 17:04:17,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:17,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:17,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:17,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:04:17,882 INFO L87 Difference]: Start difference. First operand 2674 states and 2996 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 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) [2024-11-11 17:04:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:18,564 INFO L93 Difference]: Finished difference Result 6236 states and 7081 transitions. [2024-11-11 17:04:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:18,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 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 380 [2024-11-11 17:04:18,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:18,572 INFO L225 Difference]: With dead ends: 6236 [2024-11-11 17:04:18,572 INFO L226 Difference]: Without dead ends: 3742 [2024-11-11 17:04:18,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:04:18,575 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 138 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:18,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 58 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:04:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-11 17:04:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2024-11-11 17:04:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.1242983159583) internal successors, (4206), 3741 states have internal predecessors, (4206), 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) [2024-11-11 17:04:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4206 transitions. [2024-11-11 17:04:18,634 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4206 transitions. Word has length 380 [2024-11-11 17:04:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:18,634 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4206 transitions. [2024-11-11 17:04:18,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 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) [2024-11-11 17:04:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4206 transitions. [2024-11-11 17:04:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-11 17:04:18,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:18,641 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:18,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 17:04:18,845 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,SelfDestructingSolverStorable7 [2024-11-11 17:04:18,846 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:18,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1274381579, now seen corresponding path program 1 times [2024-11-11 17:04:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:18,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354896496] [2024-11-11 17:04:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-11 17:04:19,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:19,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354896496] [2024-11-11 17:04:19,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354896496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:19,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:19,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011541380] [2024-11-11 17:04:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:19,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:04:19,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:19,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:04:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:04:19,154 INFO L87 Difference]: Start difference. First operand 3742 states and 4206 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 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) [2024-11-11 17:04:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:19,731 INFO L93 Difference]: Finished difference Result 7540 states and 8485 transitions. [2024-11-11 17:04:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:04:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 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 455 [2024-11-11 17:04:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:19,740 INFO L225 Difference]: With dead ends: 7540 [2024-11-11 17:04:19,740 INFO L226 Difference]: Without dead ends: 3920 [2024-11-11 17:04:19,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:04:19,744 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:19,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:04:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-11 17:04:19,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2024-11-11 17:04:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083132852178562) internal successors, (4052), 3741 states have internal predecessors, (4052), 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) [2024-11-11 17:04:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4052 transitions. [2024-11-11 17:04:19,793 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4052 transitions. Word has length 455 [2024-11-11 17:04:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:19,794 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4052 transitions. [2024-11-11 17:04:19,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 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) [2024-11-11 17:04:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4052 transitions. [2024-11-11 17:04:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-11 17:04:19,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:19,799 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:19,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 17:04:19,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:19,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:19,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1801199018, now seen corresponding path program 1 times [2024-11-11 17:04:19,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:19,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467085009] [2024-11-11 17:04:19,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:19,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 520 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:04:20,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:20,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467085009] [2024-11-11 17:04:20,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467085009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:20,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225153179] [2024-11-11 17:04:20,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:20,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:20,218 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:20,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 17:04:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:20,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:20,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-11 17:04:20,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:20,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225153179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:20,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:20,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:04:20,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859006884] [2024-11-11 17:04:20,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:20,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:20,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:20,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:20,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:20,419 INFO L87 Difference]: Start difference. First operand 3742 states and 4052 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-11 17:04:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:20,810 INFO L93 Difference]: Finished difference Result 7304 states and 7923 transitions. [2024-11-11 17:04:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 481 [2024-11-11 17:04:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:20,818 INFO L225 Difference]: With dead ends: 7304 [2024-11-11 17:04:20,818 INFO L226 Difference]: Without dead ends: 3742 [2024-11-11 17:04:20,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:20,822 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:20,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 214 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:20,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-11 17:04:20,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2024-11-11 17:04:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0737770649558942) internal successors, (4017), 3741 states have internal predecessors, (4017), 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) [2024-11-11 17:04:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4017 transitions. [2024-11-11 17:04:20,874 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4017 transitions. Word has length 481 [2024-11-11 17:04:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:20,875 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4017 transitions. [2024-11-11 17:04:20,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2024-11-11 17:04:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4017 transitions. [2024-11-11 17:04:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-11 17:04:20,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:20,878 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2024-11-11 17:04:20,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 17:04:21,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:21,079 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:21,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 120362576, now seen corresponding path program 1 times [2024-11-11 17:04:21,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:21,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501417256] [2024-11-11 17:04:21,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:21,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-11-11 17:04:21,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501417256] [2024-11-11 17:04:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501417256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532170450] [2024-11-11 17:04:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:21,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:21,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:21,315 INFO L87 Difference]: Start difference. First operand 3742 states and 4017 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-11 17:04:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:21,711 INFO L93 Difference]: Finished difference Result 7660 states and 8277 transitions. [2024-11-11 17:04:21,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:21,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 535 [2024-11-11 17:04:21,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:21,720 INFO L225 Difference]: With dead ends: 7660 [2024-11-11 17:04:21,720 INFO L226 Difference]: Without dead ends: 4098 [2024-11-11 17:04:21,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:21,724 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 126 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:21,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 61 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2024-11-11 17:04:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2024-11-11 17:04:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0785940932389553) internal successors, (4419), 4097 states have internal predecessors, (4419), 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) [2024-11-11 17:04:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4419 transitions. [2024-11-11 17:04:21,769 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4419 transitions. Word has length 535 [2024-11-11 17:04:21,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:21,769 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4419 transitions. [2024-11-11 17:04:21,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-11 17:04:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4419 transitions. [2024-11-11 17:04:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-11 17:04:21,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:21,773 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:21,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 17:04:21,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:21,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1311829144, now seen corresponding path program 1 times [2024-11-11 17:04:21,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:21,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244214747] [2024-11-11 17:04:21,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:21,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 463 proven. 68 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-11 17:04:22,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:22,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244214747] [2024-11-11 17:04:22,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244214747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:22,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898863614] [2024-11-11 17:04:22,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:22,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:22,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:22,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:22,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 17:04:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:22,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:22,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2024-11-11 17:04:22,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:22,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898863614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:22,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:22,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-11 17:04:22,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70379666] [2024-11-11 17:04:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:22,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:22,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:22,950 INFO L87 Difference]: Start difference. First operand 4098 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:23,301 INFO L93 Difference]: Finished difference Result 5168 states and 5590 transitions. [2024-11-11 17:04:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 546 [2024-11-11 17:04:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:23,312 INFO L225 Difference]: With dead ends: 5168 [2024-11-11 17:04:23,312 INFO L226 Difference]: Without dead ends: 5166 [2024-11-11 17:04:23,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:23,314 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:23,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:23,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-11 17:04:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4276. [2024-11-11 17:04:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 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) [2024-11-11 17:04:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2024-11-11 17:04:23,352 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 546 [2024-11-11 17:04:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:23,352 INFO L471 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2024-11-11 17:04:23,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2024-11-11 17:04:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2024-11-11 17:04:23,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:23,356 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:23,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 17:04:23,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:23,557 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:23,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:23,558 INFO L85 PathProgramCache]: Analyzing trace with hash 538602375, now seen corresponding path program 1 times [2024-11-11 17:04:23,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:23,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060661046] [2024-11-11 17:04:23,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:23,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 943 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-11 17:04:23,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060661046] [2024-11-11 17:04:23,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060661046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833040763] [2024-11-11 17:04:23,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:23,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:23,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:23,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:24,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 17:04:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:24,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:24,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:24,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2024-11-11 17:04:24,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:24,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833040763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:24,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:24,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:04:24,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518752433] [2024-11-11 17:04:24,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:24,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:24,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:24,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:24,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:24,237 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 17:04:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:24,686 INFO L93 Difference]: Finished difference Result 5702 states and 6165 transitions. [2024-11-11 17:04:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:24,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 588 [2024-11-11 17:04:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:24,700 INFO L225 Difference]: With dead ends: 5702 [2024-11-11 17:04:24,701 INFO L226 Difference]: Without dead ends: 5700 [2024-11-11 17:04:24,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:24,704 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:24,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-11 17:04:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4276. [2024-11-11 17:04:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 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) [2024-11-11 17:04:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2024-11-11 17:04:24,758 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 588 [2024-11-11 17:04:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:24,758 INFO L471 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2024-11-11 17:04:24,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 17:04:24,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2024-11-11 17:04:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-11-11 17:04:24,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:24,763 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 4, 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] [2024-11-11 17:04:24,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 17:04:24,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-11 17:04:24,968 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:24,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1811126405, now seen corresponding path program 1 times [2024-11-11 17:04:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:24,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498255432] [2024-11-11 17:04:24,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:24,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-11 17:04:25,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:25,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498255432] [2024-11-11 17:04:25,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498255432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:25,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586416526] [2024-11-11 17:04:25,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:25,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:25,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:25,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:25,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 17:04:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:25,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:04:25,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2024-11-11 17:04:25,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:25,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586416526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:25,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:25,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-11 17:04:25,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435375690] [2024-11-11 17:04:25,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:25,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:25,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:25,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:25,666 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-11-11 17:04:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:26,050 INFO L93 Difference]: Finished difference Result 5524 states and 5971 transitions. [2024-11-11 17:04:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:26,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 619 [2024-11-11 17:04:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:26,059 INFO L225 Difference]: With dead ends: 5524 [2024-11-11 17:04:26,059 INFO L226 Difference]: Without dead ends: 5522 [2024-11-11 17:04:26,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:26,061 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:26,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2024-11-11 17:04:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4276. [2024-11-11 17:04:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 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) [2024-11-11 17:04:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2024-11-11 17:04:26,121 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 619 [2024-11-11 17:04:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:26,122 INFO L471 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2024-11-11 17:04:26,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-11-11 17:04:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2024-11-11 17:04:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2024-11-11 17:04:26,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:26,131 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 4, 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] [2024-11-11 17:04:26,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 17:04:26,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:26,332 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:26,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1748481757, now seen corresponding path program 1 times [2024-11-11 17:04:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986609686] [2024-11-11 17:04:26,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:26,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-11 17:04:26,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:26,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986609686] [2024-11-11 17:04:26,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986609686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:26,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788927565] [2024-11-11 17:04:26,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:26,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:26,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:26,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 17:04:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:26,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:04:26,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-11 17:04:27,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:04:27,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788927565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:27,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:04:27,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-11 17:04:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170745610] [2024-11-11 17:04:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:27,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:27,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:27,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:27,360 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 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) [2024-11-11 17:04:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:27,714 INFO L93 Difference]: Finished difference Result 9440 states and 10230 transitions. [2024-11-11 17:04:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 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 628 [2024-11-11 17:04:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:27,720 INFO L225 Difference]: With dead ends: 9440 [2024-11-11 17:04:27,721 INFO L226 Difference]: Without dead ends: 5344 [2024-11-11 17:04:27,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:27,726 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:27,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-11 17:04:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2024-11-11 17:04:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0758001122964627) internal successors, (5748), 5343 states have internal predecessors, (5748), 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) [2024-11-11 17:04:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5748 transitions. [2024-11-11 17:04:27,765 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5748 transitions. Word has length 628 [2024-11-11 17:04:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:27,765 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5748 transitions. [2024-11-11 17:04:27,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 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) [2024-11-11 17:04:27,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5748 transitions. [2024-11-11 17:04:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-11 17:04:27,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:27,771 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:27,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 17:04:27,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:27,972 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:27,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:27,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1282632347, now seen corresponding path program 1 times [2024-11-11 17:04:27,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:27,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24507143] [2024-11-11 17:04:27,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:27,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-11 17:04:28,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:28,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24507143] [2024-11-11 17:04:28,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24507143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:28,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:28,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:28,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449006714] [2024-11-11 17:04:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:28,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:28,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:28,326 INFO L87 Difference]: Start difference. First operand 5344 states and 5748 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-11 17:04:28,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:28,695 INFO L93 Difference]: Finished difference Result 10864 states and 11694 transitions. [2024-11-11 17:04:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:28,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 697 [2024-11-11 17:04:28,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:28,704 INFO L225 Difference]: With dead ends: 10864 [2024-11-11 17:04:28,704 INFO L226 Difference]: Without dead ends: 5700 [2024-11-11 17:04:28,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:28,709 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:28,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 17:04:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-11 17:04:28,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5166. [2024-11-11 17:04:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0772507260406583) internal successors, (5564), 5165 states have internal predecessors, (5564), 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) [2024-11-11 17:04:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5564 transitions. [2024-11-11 17:04:28,755 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5564 transitions. Word has length 697 [2024-11-11 17:04:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:28,755 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5564 transitions. [2024-11-11 17:04:28,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-11 17:04:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5564 transitions. [2024-11-11 17:04:28,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-11 17:04:28,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:28,762 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2024-11-11 17:04:28,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 17:04:28,762 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:28,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1285598144, now seen corresponding path program 1 times [2024-11-11 17:04:28,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:28,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768387909] [2024-11-11 17:04:28,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:28,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 1200 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-11 17:04:29,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:29,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768387909] [2024-11-11 17:04:29,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768387909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:29,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:29,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:29,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058061006] [2024-11-11 17:04:29,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:29,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:29,080 INFO L87 Difference]: Start difference. First operand 5166 states and 5564 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-11 17:04:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:29,577 INFO L93 Difference]: Finished difference Result 11220 states and 12115 transitions. [2024-11-11 17:04:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:29,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 704 [2024-11-11 17:04:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:29,587 INFO L225 Difference]: With dead ends: 11220 [2024-11-11 17:04:29,591 INFO L226 Difference]: Without dead ends: 6234 [2024-11-11 17:04:29,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:29,599 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:29,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 201 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 17:04:29,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-11 17:04:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5522. [2024-11-11 17:04:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0597717804745517) internal successors, (5851), 5521 states have internal predecessors, (5851), 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) [2024-11-11 17:04:29,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5851 transitions. [2024-11-11 17:04:29,638 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5851 transitions. Word has length 704 [2024-11-11 17:04:29,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:29,639 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 5851 transitions. [2024-11-11 17:04:29,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-11 17:04:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5851 transitions. [2024-11-11 17:04:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2024-11-11 17:04:29,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:29,645 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2024-11-11 17:04:29,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 17:04:29,646 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:29,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1250623350, now seen corresponding path program 1 times [2024-11-11 17:04:29,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55148821] [2024-11-11 17:04:29,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:29,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1638 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2024-11-11 17:04:30,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:30,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55148821] [2024-11-11 17:04:30,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55148821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:04:30,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:04:30,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:04:30,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396237279] [2024-11-11 17:04:30,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:04:30,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:04:30,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:30,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:04:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:30,089 INFO L87 Difference]: Start difference. First operand 5522 states and 5851 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2024-11-11 17:04:30,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:30,497 INFO L93 Difference]: Finished difference Result 10864 states and 11521 transitions. [2024-11-11 17:04:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:04:30,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 781 [2024-11-11 17:04:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:30,516 INFO L225 Difference]: With dead ends: 10864 [2024-11-11 17:04:30,516 INFO L226 Difference]: Without dead ends: 5522 [2024-11-11 17:04:30,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:04:30,525 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:30,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 17:04:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2024-11-11 17:04:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2024-11-11 17:04:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0567097136440202) internal successors, (5646), 5343 states have internal predecessors, (5646), 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) [2024-11-11 17:04:30,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5646 transitions. [2024-11-11 17:04:30,569 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5646 transitions. Word has length 781 [2024-11-11 17:04:30,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:30,569 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 5646 transitions. [2024-11-11 17:04:30,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2024-11-11 17:04:30,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5646 transitions. [2024-11-11 17:04:30,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2024-11-11 17:04:30,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:04:30,577 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:30,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 17:04:30,577 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:04:30,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:04:30,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2118539318, now seen corresponding path program 1 times [2024-11-11 17:04:30,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:04:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792514703] [2024-11-11 17:04:30,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:30,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:04:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-11 17:04:30,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:04:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792514703] [2024-11-11 17:04:30,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792514703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:04:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927510433] [2024-11-11 17:04:30,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:04:30,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:30,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:04:30,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:04:30,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 17:04:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:04:31,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:04:31,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:04:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-11 17:04:31,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 17:04:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-11 17:04:31,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927510433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 17:04:31,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 17:04:31,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-11 17:04:31,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028521248] [2024-11-11 17:04:31,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 17:04:31,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 17:04:31,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:04:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 17:04:31,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:31,745 INFO L87 Difference]: Start difference. First operand 5344 states and 5646 transitions. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2024-11-11 17:04:32,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:04:32,538 INFO L93 Difference]: Finished difference Result 12286 states and 13001 transitions. [2024-11-11 17:04:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 17:04:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 900 [2024-11-11 17:04:32,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:04:32,539 INFO L225 Difference]: With dead ends: 12286 [2024-11-11 17:04:32,539 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 17:04:32,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1802 GetRequests, 1798 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:04:32,546 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 266 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:04:32,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 65 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:04:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 17:04:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 17:04:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:04:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 17:04:32,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 900 [2024-11-11 17:04:32,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:04:32,548 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 17:04:32,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2024-11-11 17:04:32,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 17:04:32,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 17:04:32,552 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 17:04:32,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 17:04:32,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:04:32,759 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:04:32,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 17:04:33,603 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 17:04:33,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 05:04:33 BoogieIcfgContainer [2024-11-11 17:04:33,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 17:04:33,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 17:04:33,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 17:04:33,618 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 17:04:33,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:04:10" (3/4) ... [2024-11-11 17:04:33,620 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 17:04:33,634 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-11 17:04:33,639 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-11 17:04:33,639 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 17:04:33,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 17:04:33,805 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 17:04:33,806 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 17:04:33,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 17:04:33,806 INFO L158 Benchmark]: Toolchain (without parser) took 25430.87ms. Allocated memory was 197.1MB in the beginning and 853.5MB in the end (delta: 656.4MB). Free memory was 124.4MB in the beginning and 340.2MB in the end (delta: -215.8MB). Peak memory consumption was 443.1MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,806 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 17:04:33,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.01ms. Allocated memory is still 197.1MB. Free memory was 124.4MB in the beginning and 153.3MB in the end (delta: -28.9MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.15ms. Allocated memory is still 197.1MB. Free memory was 153.3MB in the beginning and 143.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,807 INFO L158 Benchmark]: Boogie Preprocessor took 89.76ms. Allocated memory is still 197.1MB. Free memory was 143.9MB in the beginning and 130.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,807 INFO L158 Benchmark]: RCFGBuilder took 956.06ms. Allocated memory is still 197.1MB. Free memory was 130.3MB in the beginning and 114.6MB in the end (delta: 15.7MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,808 INFO L158 Benchmark]: TraceAbstraction took 23603.09ms. Allocated memory was 197.1MB in the beginning and 853.5MB in the end (delta: 656.4MB). Free memory was 114.6MB in the beginning and 354.9MB in the end (delta: -240.4MB). Peak memory consumption was 468.5MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,808 INFO L158 Benchmark]: Witness Printer took 188.24ms. Allocated memory is still 853.5MB. Free memory was 354.9MB in the beginning and 340.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-11 17:04:33,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.01ms. Allocated memory is still 197.1MB. Free memory was 124.4MB in the beginning and 153.3MB in the end (delta: -28.9MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.15ms. Allocated memory is still 197.1MB. Free memory was 153.3MB in the beginning and 143.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.76ms. Allocated memory is still 197.1MB. Free memory was 143.9MB in the beginning and 130.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 956.06ms. Allocated memory is still 197.1MB. Free memory was 130.3MB in the beginning and 114.6MB in the end (delta: 15.7MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23603.09ms. Allocated memory was 197.1MB in the beginning and 853.5MB in the end (delta: 656.4MB). Free memory was 114.6MB in the beginning and 354.9MB in the end (delta: -240.4MB). Peak memory consumption was 468.5MB. Max. memory is 16.1GB. * Witness Printer took 188.24ms. Allocated memory is still 853.5MB. Free memory was 354.9MB in the beginning and 340.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 182]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.7s, OverallIterations: 19, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2628 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2628 mSDsluCounter, 1998 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 1169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9926 IncrementalHoareTripleChecker+Invalid, 11095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1169 mSolverCounterUnsat, 1893 mSDtfsCounter, 9926 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5438 GetRequests, 5392 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=17, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 5340 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 13396 NumberOfCodeBlocks, 13396 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 14268 ConstructedInterpolants, 0 QuantifiedInterpolants, 44529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5643 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 28 InterpolantComputations, 18 PerfectInterpolantSequences, 28866/29588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((a24 == 1) && (10 <= a21)) || ((a24 == 1) && (a21 <= 8))) || (((a12 <= 80) && (a24 == 1)) && (0 <= ((long long) a12 + 42)))) || (((a24 == 1) && (a15 <= 8)) && (((long long) 49 + a12) <= 0))) || (((a15 <= 8) && (a21 <= 7)) && (((long long) 49 + a12) <= 0))) || (((a24 == 1) && (9 <= a15)) && (0 <= ((long long) a12 + 42)))) || (((6 <= a15) && (a24 == 1)) && (a15 <= 8))) RESULT: Ultimate proved your program to be correct! [2024-11-11 17:04:33,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE